Patente

2016

  • F. Lurz, S. Lindner, A. Koelpin, G. Sept-Enzel, P. Dingler, and E. Halder, Elektrisches Messsystem und Betriebsverfahren hierfür, 2016. [Bibtex]
    @patent{lurz_patent_2016,
    author = {Lurz, Fabian and Lindner, Stefan and Koelpin, Alexander and Sept-Enzel, Gerold and Dingler, Peter and Halder, Ernst},
    cris = {lurz_patent_2016},
    year = {2016},
    month = {10},
    day = {13},
    number = {DE102016119562.6},
    title = {Elektrisches Messsystem und Betriebsverfahren hierfür},
    type = {patent},
    }
  • M. Trautmann, B. Sanftl, A. Koelpin, T. Heckel, L. Frey, S. Ditze, A. Endruschat, C. Joffe, A. Rosskopf, and T. Schriefer, System zur drahtlosen Übertragung von Energie und Daten, 2016. [Bibtex]
    @patent{trautmann_patent_2016,
    abstract = {Die Erfindung betrifft ein System zur drahtlosen Übertragung von Energie und Daten, bei dem mindestens zwei in einem Abstand zueinander angeordnete Spulen oder elektrische Leiterbahnen für die Übertragung von Energie vorhanden sind. Dabei ist jeweils mindestens eine elektrische Spule oder elektrische Leiterbahn zur Übertragung von Energie und/oder mindestens eine elektrische Spule oder elektrische Leiterbahn zur Übertragung von Daten an jeweils eine elektrische Wechselspannungsquelle angeschlossen. Dabei ist mindestens eine elektrische Wechselspannungsquelle modulierbar. Die elektrischen Spulen oder elektrischen Leiterbahnen zur Übertragung von Daten sind mit elektrischer Spannung mit einer Frequenz, die kleiner als die Frequenz mit der eine elektrische Spannung zur Übertragung von Energie mittels der elektrischen Spulen oder elektrischen Leiterbahnen zur Übertragung von Energie eingesetzt ist, betrieben.},
    author = {Trautmann, Martin and Sanftl, Benedikt and Koelpin, Alexander and Heckel, Thomas and Frey, Lothar and Ditze, Stefan and Endruschat, Achim and Joffe, Christopher and Rosskopf, Andreas and Schriefer, Thomas},
    cris = {trautmann_patent_2016},
    year = {2016},
    month = {09},
    day = {29},
    keywords = {Inductive Power Transfer},
    number = {102016206767.2},
    title = {System zur drahtlosen Übertragung von Energie und Daten},
    type = {patent},
    }

2013

  • J. Brendel, G. Fischer, and A. Schmidt, Verfahren zum Bestimmen einer Übertragungsqualität beim Empfangen von Audiosignalen, 2013. [Bibtex]
    @patent{brendel_patent_2013,
    abstract = {Es wird ein Verfahren zum Bestimmen einer Übertragungsqualität beim Empfangen von Audiosignalen beschrieben, die über eine frequenzmodulierte Strecke analog übertragen werden. Hierzu wird ein frequenzmoduliertes Audiosignal empfangen und eine IQ-Demodulation des Eingangssignals wird durchgeführt. Der I- und der Q-Zweig des demodulierten Basisbandsignales werden einer Analog/Digitalwandlung unterzogen. Alternativ kann das Eingangssignal zuerst digitalisiert und dann IQ-demoduliert werden. Eine Mehrzahl von N Samples wird erfasst. Der Betrag (B) der N Samples wird gebildet. Es wird ein Referenzwert (R) aus der Menge der N Samples bestimmt. Jedes der N Samples wird auf den Referenzwert (R) normiert. Ein Maß der Schwankungen der normierten Beträge wird bestimmt. Das Maß der Schwankungen zeigt die Qualität der Übertragungsstrecke an.},
    author = {Brendel, Johannes and Fischer, Georg and Schmidt, Axel},
    cris = {brendel_patent_2013},
    year = {2013},
    month = {06},
    day = {06},
    number = {DE102011087745A1},
    title = {Verfahren zum Bestimmen einer Übertragungsqualität beim Empfangen von Audiosignalen},
    type = {patent},
    url = {http://ip.com/pat/DE102011087745A1},
    }
  • S. Lindner, A. Koelpin, S. Linz, S. Mann, F. Barbon, E. Halder, and P. Dingler, Verfahren zur Messung der Frequenz eines Signals sowie elektrisches Messsystem, 2013. [Bibtex]
    @patent{lindner_patent_2013,
    author = {Lindner, Stefan and Koelpin, Alexander and Linz, Sarah and Mann, Sebastian and Barbon, Francesco and Halder, Ernst and Dingler, Peter},
    cris = {lindner_patent_2013},
    year = {2013},
    month = {05},
    number = {DE102013209364A1},
    title = {Verfahren zur Messung der Frequenz eines Signals sowie elektrisches Messsystem},
    type = {patent},
    url = {http://ip.com/pat/DE102013209364A1},
    }
  • F. Oesterle, F. Fink, H. Kuhn, and A. Koelpin, Verfahren zum Testen von Bauelementen und Messanordnung, 2013. [Bibtex]
    @patent{oesterle_patent_2013,
    author = {Oesterle, Florian and Fink, Franz and Kuhn, Harald and Koelpin, Alexander},
    cris = {oesterle_patent_2013},
    year = {2013},
    month = {05},
    day = {05},
    number = {DE102013102155B4},
    title = {Verfahren zum Testen von Bauelementen und Messanordnung},
    type = {patent},
    url = {http://ip.com/pat/DE102013102155B4},
    }
  • A. Koelpin, S. Mann, G. Vinci, S. Lindner, F. Barbon, E. Halder, and P. Dingler, Elektrisches Messsystem, 2013. [Bibtex]
    @patent{koelpin_patent_2013,
    author = {Koelpin, Alexander and Mann, Sebastian and Vinci, Gabor and Lindner, Stefan and Barbon, Francesco and Halder, Ernst and Dingler, Peter},
    cris = {koelpin_patent_2013},
    year = {2013},
    month = {02},
    number = {DE102013202765B4},
    title = {Elektrisches Messsystem},
    type = {patent},
    url = {http://ip.com/pat/DE102013202765B4},
    }

2012

  • G. Vinci and A. Koelpin, Elektronische Abstandserfassungsvorrichtung, 2012. [Bibtex]
    @patent{vinci_patent_2012,
    author = {Vinci, Gabor and Koelpin, Alexander},
    cris = {vinci_patent_2012},
    year = {2012},
    month = {06},
    keywords = {Six-Port,High-Resolution Radar},
    number = {EP12174439A1},
    title = {Elektronische Abstandserfassungsvorrichtung},
    type = {patent},
    url = {http://ip.com/pat/EP2680032A1},
    }
  • A. Zohny, S. Leuschner, and J. Müller, Amplifier and Mobile Communication Device, 2012. [Bibtex]
    @patent{zohny_patent_2012,
    abstract = {The goal of this invention is then to utilize a novel linearization scheme in order to decrease the amount of back-off needed from the PA. Thus, the efficiency for a certain linearity requirement can be boosted and a longer battery-life is achieved.},
    author = {Zohny, Amr and Leuschner, Stephan and Müller, Jan-Erik},
    cris = {zohny_patent_2012},
    year = {2012},
    month = {05},
    day = {16},
    keywords = {Power Amplifier,Distortion,PAE,Linearity,WCDMA,CMOS},
    number = {US9088248},
    title = {Amplifier and Mobile Communication Device},
    type = {patent},
    url = {http://ip.com/pat/US9088248},
    }
  • G. Fischer, G. Adamiuk, and H. Schenkel, Meta-material filter for use in a base station of a wireless communications system, 2012. [Bibtex]
    @patent{fischer_patent_2012d,
    author = {Fischer, Georg and Adamiuk, Grzegorz and Schenkel, Horst},
    cris = {fischer_patent_2012d},
    year = {2012},
    month = {02},
    day = {17},
    number = {EP1989753A1},
    title = {Meta-material filter for use in a base station of a wireless communications system},
    type = {patent},
    url = {http://ip.com/pat/EP1989753A1},
    }
  • G. Fischer, Completing calls over a network with a malfunctioning backhaul communications link, 2012. [Bibtex]
    @patent{fischer_patent_2012c,
    author = {Fischer, Georg},
    cris = {fischer_patent_2012c},
    year = {2012},
    month = {02},
    day = {17},
    number = {EP1997283A2},
    title = {Completing calls over a network with a malfunctioning backhaul communications link},
    type = {patent},
    url = {http://ip.com/pat/EP1997283A2},
    }
  • G. Fischer and F. Pivit, Aperture Antenna Element, 2012. [Bibtex]
    @patent{fischer_patent_2012a,
    abstract = {A wide-bandwidth aperture antenna is constructed of two parallel metal plates 51, 52, each having a resonant aperture 53, 54. The apertured plates are arranged parallel to one another, with the apertures aligned. A third plate 57 is arranged parallel to the apertured plates to act as a reflector. The resonant apertures are in the form of sqares with rounded corners. Feed stubs 55 and 56 are arranged between the apertured plates and project into the region between the apertures to excite orthogonally polarized modes. The feed stubs are in the form of strips which are aligned in planes perpendicular to the planes of the apertured plates. An exemplary embodiment has a bandwidth of 1700 MHz to 3300 MHz, containing the bands used for GSM 1800, UMTS, UMTS+, Bluetooth and WLAN systems. The feed is high-impedance and the decoupling better than -11dB over the whole frequency bandwidth.},
    author = {Fischer, Georg and Pivit, Florian},
    cris = {fischer_patent_2012a},
    year = {2012},
    month = {02},
    day = {17},
    number = {US7030825B1},
    title = {Aperture Antenna Element},
    type = {patent},
    url = {http://ip.com/pat/US7030825},
    }
  • G. Fischer and F. Pivit, A compact multiple-band antenna arrangement, 2012. [Bibtex]
    @patent{fischer_patent_2012b,
    abstract = {An antenna element is provided which is responsive in multiple frequency bands, has symmetric beam patterns, and is easily and cheaply fabricated. The antenna element includes at least three conductive plates (50,60,70;90,100,110;140,150,160;170,180,190,200) arranged in a stack. At least one pair of adjacent plates contain apertures that are mutually aligned relative to the stacking direction. The antenna element further includes at least one air stripline (80;120,130;210,220) arranged to create radiative electromagnetic excitations of the apertures when the stripline or striplines are energized by a suitable radiofrequency voltage source or sources.},
    author = {Fischer, Georg and Pivit, Florian},
    cris = {fischer_patent_2012b},
    year = {2012},
    month = {02},
    day = {17},
    number = {EP1521332A1},
    title = {A compact multiple-band antenna arrangement},
    type = {patent},
    url = {http://ip.com/pat/EP1521332A1},
    }
  • W. Eckl, G. Fischer, and G. Kaminski, Varactor with extended tuning range, 2012. [Bibtex]
    @patent{eckl_patent_2012,
    abstract = {The invention relates to a device for high-frequency and/or radio-frequency tuning. An object of the invention is to provide a new and improved approach for enabling an increased high-frequency and/or radio-frequency tuning range by a reduced complexity and board space even with regard to multiband and/or multistandard purposes, in particular suitable within the radio design for mobile communication systems and/or networks, preferably by simultaneously reducing the undesirable parasitic influences. The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) being fixed or variable respectively, at least one signal path connected to the first variable capacitor (C1) and providing at least one input and one output port (rf-port1, rf-port2) and at least one controllable switching means (SC2) for individually connecting and disconnecting at least one of the at least one second capacitor (C2) into the signal path or from the signal path, in particular in parallel to the first variable capacitor (C1).},
    author = {Eckl, Wolfgang and Fischer, Georg and Kaminski, Gerd},
    cris = {eckl_patent_2012},
    year = {2012},
    month = {02},
    day = {17},
    number = {EP1383234A1},
    title = {Varactor with extended tuning range},
    type = {patent},
    url = {http://ip.com/pat/EP1383234A1},
    }

2011

  • A. Götz, Apparatus and Method for Localization, 2011. [Bibtex]
    @patent{goetz_patent_2011a,
    author = {Götz, Alexander},
    cris = {goetz_patent_2011a},
    year = {2011},
    month = {02},
    day = {10},
    keywords = {Localization},
    number = {WO2012107563A3},
    title = {Apparatus and Method for Localization},
    type = {patent},
    url = {http://ip.com/pat/WO2012107563A3},
    }
  • A. Götz, Vorrichtung und Verfahren zur Lokalisierung, 2011. [Bibtex]
    @patent{goetz_patent_2011,
    author = {Götz, Alexander},
    cris = {goetz_patent_2011},
    year = {2011},
    month = {02},
    number = {EP2487503B1},
    title = {Vorrichtung und Verfahren zur Lokalisierung},
    type = {patent},
    url = {http://ip.com/pat/EP2487503B1},
    }

2009

  • A. Koelpin and G. Vinci, Verfahren und Vorrichtung zur Ermittlung einer Ausrichtung von Sensoren eines Fahrzeugs, 2009. [Bibtex]
    @patent{koelpin_patent_2009,
    abstract = {Die Erfindung betrifft ein Verfahren zur Ermittlung einer Ausrichtung von Sensoren (1) eines Fahrzeugs, bei welchem mittels des Sensors (1) ein hochfrequentes Sensorsignal (S) ausgesendet wird, welches von zumindest zwei Referenzpunkten (RP1, RP2) empfangen wird, wobei aus einer interferometrisch ermittelten Phasendifferenz (ΔΦ) zwischen den zumindest zwei von den Referenzpunkten (RP1, RP2) hochfrequenten empfangenen Signalen (S1, S2) die Ausrichtung des Sensors (1) bez glich einer Sensor-Referenzachse (R) ermittelt wird. Die Erfindung betrifft weiterhin eine Vorrichtung (2) zur Ermittlung einer Ausrichtung von Sensoren (1) eines Fahrzeugs mit zumindest zwei Empfangseinheiten (3.1 bis 3.n), die zum Empfang von zumindest zwei hochfrequenten Signalen (S1, S2) vorgesehen sind, wobei die Empfangseinheiten (E1 bis En) an zumindest zwei Referenzpunkten (RP1, RP2) angeordnet sind. Die Vorrichtung (2) umfasst weiterhin eine Auswerteeinheit (6), mittels welcher aus einer interferometrisch ermittelten Phasendifferenz (ΔΦ) zwischen den zumindest zwei hochfrequenten empfangenen Signalen (S1, S2) die Ausrichtung des Sensors (1) bez glich einer Sensor-Referenzachse (R) ermittelbar ist.},
    author = {Koelpin, Alexander and Vinci, Gabor},
    cris = {koelpin_patent_2009},
    year = {2009},
    month = {04},
    keywords = {six-port,radar calibration},
    number = {DE102009017369A1},
    title = {Verfahren und Vorrichtung zur Ermittlung einer Ausrichtung von Sensoren eines Fahrzeugs},
    type = {patent},
    url = {http://ip.com/pat/DE102009017369A1},
    }

2008

  • G. Fischer, G. Kaminski, and W. Eckl, Controlling Q-factors of filters, 2008. [Bibtex]
    @patent{fischer_patent_2008,
    abstract = {The present invention provides a method and an apparatus for controlling a Q-factor for a filter. The method comprises stabilizing an active feedback to provide a variable feedback in a filter, varying the active feedback based on an input signal to the filter, and producing a desired Q-factor for the filter at a first frequency band, in response to the variable feedback. The method further comprises reconfiguring a center frequency and a bandwidth of the filter based on a channel bandwidth of the input signal to the filter to adjust the Q-factor for the filter in response to a second frequency band different than the first frequency band. By reconfiguring a center frequency and a bandwidth of a filter, the Q-factor for the filter, such as a flexible or reconfigurable filter, may be controlled across a multiplicity of frequency band signals. Using software, for example, a common signal path may be provided for the multiplicity of frequency band signals within a frequency agile radio...},
    author = {Fischer, Georg and Kaminski, Gerd and Eckl, Wolfgang},
    cris = {fischer_patent_2008},
    year = {2008},
    month = {10},
    day = {07},
    keywords = {Q-factor,filter},
    number = {US7433668},
    title = {Controlling Q-factors of filters},
    type = {patent},
    url = {http://ip.com/pat/US7433668},
    }

2007

  • G. Fischer, A method for signal amplification, a current switched power amplifier system, a base station, a mobile station and a communication network therefor, 2007. [Bibtex]
    @patent{fischer_patent_2007e,
    author = {Fischer, Georg},
    cris = {fischer_patent_2007e},
    year = {2007},
    month = {12},
    day = {19},
    number = {EP2073382B1},
    title = {A method for signal amplification, a current switched power amplifier system, a base station, a mobile station and a communication network therefor},
    type = {patent},
    url = {http://ip.com/pat/EP2073382B1},
    }
  • G. Fischer, A method for transmission and reception in FDD mode or in TDD mode in an antenna network, an antenna network, a base station, a mobile station and a communication network therefor, 2007. [Bibtex]
    @patent{fischer_patent_2007d,
    author = {Fischer, Georg},
    cris = {fischer_patent_2007d},
    year = {2007},
    month = {12},
    day = {19},
    number = {EP2073394A1},
    title = {A method for transmission and reception in FDD mode or in TDD mode in an antenna network, an antenna network, a base station, a mobile station and a communication network therefor},
    type = {patent},
    url = {http://ip.com/pat/EP2073394A1},
    }
  • G. Fischer and J. A. Hüttner, Simplified current switched circuit topology for switch mode power amplifiers, 2007. [Bibtex]
    @patent{fischer_patent_2007c,
    author = {Fischer, Georg and Hüttner, Jörg Alexander},
    cris = {fischer_patent_2007c},
    year = {2007},
    month = {12},
    day = {18},
    number = {EP2100374B1},
    title = {Simplified current switched circuit topology for switch mode power amplifiers},
    type = {patent},
    url = {http://ip.com/pat/EP2100374B1},
    }
  • G. Fischer, Coaxial metamaterial structure, 2007. [Bibtex]
    @patent{fischer_patent_2007a,
    author = {Fischer, Georg},
    cris = {fischer_patent_2007a},
    year = {2007},
    month = {12},
    day = {14},
    number = {EP2127017B1},
    title = {Coaxial metamaterial structure},
    type = {patent},
    url = {http://ip.com/pat/EP2127017B1},
    }
  • G. Fischer, Basestation RF architecture using decentralized duplexers, 2007. [Bibtex]
    @patent{fischer_patent_2007b,
    author = {Fischer, Georg},
    cris = {fischer_patent_2007b},
    year = {2007},
    month = {12},
    day = {14},
    number = {EP2100382B1},
    title = {Basestation RF architecture using decentralized duplexers},
    type = {patent},
    url = {http://ip.com/pat/EP2100382B1},
    }
  • G. Fischer, A switching signal generator, 2007. [Bibtex]
    @patent{fischer_patent_2007,
    author = {Fischer, Georg},
    cris = {fischer_patent_2007},
    year = {2007},
    month = {11},
    day = {26},
    number = {EP2063536A1},
    title = {A switching signal generator},
    type = {patent},
    url = {http://ip.com/pat/EP2063536A1},
    }
  • F. Pivit, J. Hesselbarth, G. Fischer, and S. Chalermwisutkul, Radio Frequency Transmitter (Method of efficiency improvement for switch mode power amplifiers by input signal interleaving), 2007. [Bibtex]
    @patent{pivit_patent_2007,
    author = {Pivit, Florian and Hesselbarth, Jan and Fischer, Georg and Chalermwisutkul, Suramate},
    cris = {pivit_patent_2007},
    year = {2007},
    number = {EP2058993B1},
    title = {Radio Frequency Transmitter (Method of efficiency improvement for switch mode power amplifiers by input signal interleaving)},
    type = {patent},
    url = {http://ip.com/pat/EP2058993B1},
    }

2006

  • G. Fischer and V. Riemann, Transmitter device having a modulation closed loop, 2006. [Bibtex]
    @patent{fischer_patent_2006b,
    author = {Fischer, Georg and Riemann, V.},
    cris = {fischer_patent_2006b},
    year = {2006},
    month = {08},
    day = {02},
    keywords = {Transmitter,Modulation},
    number = {EP1128626A1},
    title = {Transmitter device having a modulation closed loop},
    type = {patent},
    url = {http://ip.com/pat/EP1128626A1},
    }
  • G. Fischer and F. Obernosterer, Radio System, Antenna arrangement and polarization modulator for generating a transmit signal with changing polarization, 2006. [Bibtex]
    @patent{fischer_patent_2006,
    abstract = {Improved frequency utilization in a radio network is achieved by using a radio system with a plurality of base stations, which respectively have at least one transmitter and one receiver, each base station being assigned at least one dual-polarized antenna. More efficient utilization of the available frequency band, and consequently a reduction in the cluster size, is made possible by the dual-polarized antenna being assigned a polarization modulator for changing at predetermined points in time the polarization state of a transmit signal to be transmitted.},
    author = {Fischer, Georg and Obernosterer, Frank},
    cris = {fischer_patent_2006},
    year = {2006},
    month = {02},
    day = {21},
    keywords = {Radio system,antenna,transmit signal,polarization},
    number = {US7003323},
    title = {Radio System, Antenna arrangement and polarization modulator for generating a transmit signal with changing polarization},
    type = {patent},
    url = {http://ip.com/pat/US7003323},
    }

2005

  • G. Fischer, Method of analysing a receiver and/or transmitter chain, 2005. [Bibtex]
    @patent{fischer_patent_2005b,
    author = {Fischer, Georg},
    cris = {fischer_patent_2005b},
    year = {2005},
    month = {06},
    day = {08},
    number = {EP1521378B1},
    title = {Method of analysing a receiver and/or transmitter chain},
    type = {patent},
    url = {http://ip.com/pat/EP1521378B1},
    }
  • M. Doubrava and G. Fischer, Modular amplifier arrangement, 2005. [Bibtex]
    @patent{doubrava_patent_2005,
    abstract = {The invention relates to a modular RF power amplifier arrangement for a base station for a wireless communication system. It is an object to provide a modular amplifier arrangement which is upgradeable multiply in a fail-safe manner to increase its output power capabilities in a cost-efficient manner, with low losses, high efficiency. According to the invention a modular traveling wave amplifier is proposed comprising a basic amplifier module (100) with an input line arrangement (110) and an output line arrangement (120), at least a first branching line (136) for parallely connecting a first upgrade amplifier module (200), and variable or reconfigurable impedance matching means at the input and/or at the output.},
    author = {Doubrava, M. and Fischer, Georg},
    cris = {doubrava_patent_2005},
    year = {2005},
    month = {04},
    day = {06},
    number = {EP1521361A1},
    title = {Modular amplifier arrangement},
    type = {patent},
    url = {http://ip.com/pat/EP1521361A1},
    }
  • W. Eckl, G. Fischer, and B. Friedel, Base station for a wireless telecommunication system, 2005. [Bibtex]
    @patent{eckl_patent_2005a,
    abstract = {The invention relates to a base station for a wireless telecommunications system, in particular for a CDMA system or network. It is an object to provide a base station and amplifier arrangement for a base station with high efficiency and/or low power consumption, which can be flexibly adapted to fluctuations in RF transmission power requested. According to the invention, a base station is provided, comprising an amplifier arrangement for amplifying signals transmitted by the base station, wherein said amplifier arrangement comprises two or more parallel amplifier branches with different maximum output power.},
    author = {Eckl, Wolfgang and Fischer, Georg and Friedel, Bernd},
    cris = {eckl_patent_2005a},
    year = {2005},
    month = {04},
    day = {06},
    number = {EP1521376B1},
    title = {Base station for a wireless telecommunication system},
    type = {patent},
    url = {http://ip.com/pat/EP1521376B1},
    }
  • W. Eckl, G. Fischer, and B. Friedel, Parallel amplifier arrangement, 2005. [Bibtex]
    @patent{eckl_patent_2005,
    abstract = {An amplifier arrangement comprising signal input means (3), a first amplifying device (1), at least a second amplifying device (2), and a signal output means (4). The signal input means (3) splits and/or conditions any incoming signal into at least a first branch (11) and a second branch (12), and includes at least one reconfigurable circuit (31, 32, 36) to said first and second amplifying devices (1, 2). The said signal output means (4) combines any signal output and includes at least one reconfigurable circuit (33, 34, 35). Furthermore, control means (5) for said reconfigurable circuits (31 through 36) is provided for controlling said reconfigurable circuits individually and independently from one another.},
    author = {Eckl, Wolfgang and Fischer, Georg and Friedel, Bernd},
    cris = {eckl_patent_2005},
    year = {2005},
    month = {04},
    day = {06},
    number = {EP 1521360 A1},
    title = {Parallel amplifier arrangement},
    type = {patent},
    url = {http://ip.com/pat/EP1521360A1},
    }
  • G. Fischer, Shaping noise in Power Amplifiers of Duplex Communication Systems, 2005. [Bibtex]
    @patent{fischer_patent_2005a,
    abstract = {The present invention provides a method and an apparatus for reducing radio frequency noise within a duplex communication system. The method comprises sensing a radio frequency transmit signal capable of operating a power amplifier that is capable of operation at a microwave transmit frequency and using a filter to cause an asymmetric notch in a noise power density spectrum in a radio frequency output signal to shape the noise power density spectrum at a low radio frequency power level in the microwave transmit frequency in response to the radio frequency transmit signal. In a base station, a duplex filter arrangement may trim the wideband noise within a power amplifier, such as a Class-S power amplifier. An increased filtering effort may be spend at a low power level at a power amplifier input. A desired noise shaping may be applied in the power amplifier to prevent desensitization of a receiver of a base station by the wideband noise at one or more receive frequencies for a digital cellular network in a telecommunication system. Use of a noise shaping filter with an asymmetric shape response may attenuate noise on a lower side of a transmit frequency and increase the noise on a higher side of the transmit frequency. A shift of the noise power to desired frequency regions, enables the base station to tolerate relatively more noise at higher frequencies than in a receive band, at frequencies that are lower than a transmit band. As a result, a Class-S power amplifier may provide both high linearity and efficiency.},
    author = {Fischer, Georg},
    cris = {fischer_patent_2005a},
    year = {2005},
    month = {03},
    day = {22},
    number = {US20060217082A},
    title = {Shaping noise in Power Amplifiers of Duplex Communication Systems},
    type = {patent},
    url = {http://ip.com/pat/US20060217082},
    }
  • G. Fischer, A Tunable Radio Frequency Filter, 2005. [Bibtex]
    @patent{fischer_patent_2005,
    abstract = {The present invention provides a filter unit cell. The filter unit cell includes a variable capacitor coupled in series between first and second nodes and an inductor coupled in series between the second node and a third node.},
    author = {Fischer, Georg},
    cris = {fischer_patent_2005},
    year = {2005},
    month = {02},
    day = {10},
    number = {EP1691482A1},
    title = {A Tunable Radio Frequency Filter},
    type = {patent},
    url = {http://ip.com/pat/EP1691482A1},
    }

2004

  • W. Eckl, G. Fischer, and G. Kaminski, Reconfigurable multibandfilter, 2004. [Bibtex]
    @patent{eckl_patent_2004,
    abstract = {The invention relates to a re-configurable filter. An object of the invention is, to provide a new and improved approach for providing an increased reconfiguration flexibility with regard to a filter, in particular to a bandpass-filter for different high-frequency or radio-frequency bands, in particular suitable for use within the transceiver of base stations and/or user terminals, such as handsets adapted to be used within these communication systems, by preferably simultaneously reducing undesirable parasitic influences. The invention proposes a reconfigurable multibandfilter, in particular adapted for filtering high-frequency and/or radio-frequency comprising at least two filters (f1, f2, f3) connected at their input ports in parallel (1) into a signal path, and at least one controllable switching means for individually connecting (2) respectively one of the filter output ports into said signal path with the other filter output ports disconnected from said signal path and in particular connected to ground (3).},
    author = {Eckl, Wolfgang and Fischer, Georg and Kaminski, Gerd},
    cris = {eckl_patent_2004},
    year = {2004},
    month = {01},
    day = {21},
    number = {EP1383236A1},
    title = {Reconfigurable multibandfilter},
    type = {patent},
    url = {http://ip.com/pat/EP1383236A1},
    }

2003

  • K. Schmitt and G. Fischer, Method and system for monitoring a radio transmission link, 2003. [Bibtex]
    @patent{schmitt_patent_2003,
    abstract = {A radio transmission link between at least one radio transmission device is monitored and at least one radio reception device. Radio transmission links between at least one transmission antenna and one reception antenna are monitored for faults. At least one radio reception device is tuned to the transmission frequency of at least one radio transmission device. The at least one radio transmission device then transmits, during a predetermined time period, a predetermined test signal which is recorded, evaluated and stored as a reference signal in the at least one radio reception device during a predetermined time period. At the start of a test phase, at least one radio transmission device transmits the predetermined test signal. The test signal is compared with the stored reference signal, and an error signal is produced if the comparison result shows that the test signal has changed beyond a predetermined extent with respect to the stored reference signal.},
    author = {Schmitt, K. and Fischer, Georg},
    cris = {schmitt_patent_2003},
    year = {2003},
    month = {12},
    day = {23},
    keywords = {monitoring,radio transmission link},
    number = {US6668160},
    title = {Method and system for monitoring a radio transmission link},
    type = {patent},
    url = {http://ip.com/pat/US6668160},
    }
  • W. Eckl, G. Fischer, and G. Kaminski, Universal tuning and matching device, 2003. [Bibtex]
    @patent{eckl_patent_2003a,
    abstract = {The invention relates to an universal tuning and matching device. An object of the invention is to provide a new and improved approach for providing an increased reconfiguration flexibility for high frequency or radio frequency signal transmission systems and/or applications by simultaneously reducing undesirable parasitic influences. The invention proposes a device for high frequency tuning and/or matching incorporating within one IC-package at least two capacitors (C1, C2, C3) and two inductors (L1, L2, L3), at least one signal path with at least one input and one output port (rf-port1, rf-port2, rf-prot3) and controllable switching means (1C1, 1C2, 1C3, 1L1, 1L2, 1L3) for individually connecting and disconnecting at least one of the capacitors (C1, C2, C3) and/or at least of the inductors (L1, L2, L3) into the signal path or from the signal path.},
    author = {Eckl, Wolfgang and Fischer, Georg and Kaminski, Gerd},
    cris = {eckl_patent_2003a},
    year = {2003},
    month = {11},
    day = {26},
    number = {EP1365507A1},
    title = {Universal tuning and matching device},
    type = {patent},
    url = {http://ip.com/pat/EP1365507A1},
    }
  • G. Fischer and K. Ritter, Power amplifier with an adjustable quiescent current, 2003. [Bibtex]
    @patent{fischer_patent_2003b,
    abstract = {A transmitting apparatus, in particular for a mobile radio base station, is provided. The apparatus includes at least one power amplifier (10) which has at least one amplifier element (80) and one device (20, 90, 100) for forcing a quiescent current to flow into the amplifier element (80). The level of the quiescent current can be varied in dependance of the operating state of the transmitting apparatus.},
    author = {Fischer, Georg and Ritter, Kai-Uwe},
    cris = {fischer_patent_2003b},
    year = {2003},
    month = {09},
    day = {03},
    number = {EP1341300A1},
    title = {Power amplifier with an adjustable quiescent current},
    type = {patent},
    url = {http://ip.com/pat/EP1341300A1},
    }
  • W. Eckl, G. Fischer, and G. Kaminski, Tunable negative resistance device, 2003. [Bibtex]
    @patent{eckl_patent_2003,
    abstract = {The invention proposes a device for providing tunable high-frequency and/or radio-frequency comprising within one IC-package at least four signal paths providing at least two input and at least two output ports (rf-port1, rf-port2, rf-prot3, rf-port4) at least one active component (T) and at least one variable passive component (C1, C2) connected at least with an input port of the active component (T), and at least one control path for controllable tuning the at least one variable passive component (C1, C2).},
    author = {Eckl, Wolfgang and Fischer, Georg and Kaminski, Gerd},
    cris = {eckl_patent_2003},
    year = {2003},
    month = {06},
    number = {US6894573},
    title = {Tunable negative resistance device},
    type = {patent},
    url = {http://ip.com/pat/US6894573},
    }
  • G. Fischer, IMPROVED ANTENNA HOPPING SEQUENCE FOR TX DIVERSITY IN WIRELESS TELECOMMUNICATION SYSTEM, 2003. [Bibtex]
    @patent{fischer_patent_2003,
    abstract = {PROBLEM TO BE SOLVED: To provide an improved antenna hopping sequence for TX diversity in a wireless telecommunication system. Ž

    SOLUTION: In the overall spectrum efficiency of the wireless telecommunication system, at least one multiframe signal having a plurality of sub-frames in which predefined logic channels (BCCH, FCCH and SCH) are repeatedly embedded in the predefined sub-frame is transmitted and a transmitter diversity is applied using an antenna and/or polarization hopping sequences to transmit each of the logic channels (BCCH, FCCH and SCH) at least twice by using different antennas and/or polarized waves during the transmission of one multiframe. Thus, the total spectrum efficiency of the wireless telecommunication system, in particular of a mobile communication system, is improved. Ž

    COPYRIGHT: (C)2003,JPO Ž}, author = {Fischer, Georg}, cris = {fischer_patent_2003}, year = {2003}, month = {04}, day = {04}, number = {JP2003188782A}, title = {IMPROVED ANTENNA HOPPING SEQUENCE FOR TX DIVERSITY IN WIRELESS TELECOMMUNICATION SYSTEM}, type = {patent}, url = {http://ip.com/pat/JP2003188782A}, }

  • G. Fischer, Antenna hopping sequence for TX diversity in wireless telecommunication systems, 2003. [Bibtex]
    @patent{fischer_patent_2003a,
    abstract = {The invention proposes for improving the overall spectral efficiency of wireless telecommunication systems, in particular of mobile communication systems, the transmission of at least one multiframe signal having a plurality of sub-frames with predefined logical channels (BCCH, FCCH, SCH) repeatedly embedded in predefined sub-frames, wherein a transmitter diversity is applied using antenna and/or polarisation hopping sequences such that during the transmission of respective one multiframe, each logical channel (BCCH, FCCH, SCH) is transmitted at least two times with a different antenna and/or polarisation.},
    author = {Fischer, Georg},
    cris = {fischer_patent_2003a},
    year = {2003},
    month = {04},
    day = {17},
    number = {US20030072293},
    title = {Antenna hopping sequence for TX diversity in wireless telecommunication systems},
    type = {patent},
    url = {http://ip.com/pat/US20030072293},
    }

2002

  • G. Fischer and K. Ritter, Transmitter/receiver device with re-configurable output combining, 2002. [Bibtex]
    @patent{fischer_patent_2002b,
    abstract = {The invention relates to transmission devices for a transmission system, especially for mobile radio system, comprising at least two transmission units each of which having a transmission branch (1, 2) with a signal generating chain (11, 21) and signal amplifying chain (12, 13, 14, 22, 23) wherein the outputs of the signal amplifying chains are connected to a hybrid-combiner (30). An object of the invention is to provide an improved transmitting device, in particular, to reduce the amount of components to be used by simultaneously providing a significant increase of effectiveness. The invention proposes to provide such a transmission device with means for connecting (34, 35a, 35b, 35c) each output port (30a, 30b) of the hybrid-combiner to a separate antenna. An advantage of such inventive solution is based on the fact that the components necessary to realize a transmission device, that is flexible in particular with regard to mutually combined carriers for transmitting with high.},
    author = {Fischer, Georg and Ritter, Kai-Uwe},
    cris = {fischer_patent_2002b},
    year = {2002},
    month = {10},
    number = {US20020155863},
    title = {Transmitter/receiver device with re-configurable output combining},
    type = {patent},
    url = {http://ip.com/pat/US20020155863},
    }
  • G. Fischer and K. Ritter, Phase shift keying (PSK) modulator capable of reducing the peak to average power ratio, 2002. [Bibtex]
    @patent{fischer_patent_2002a,
    abstract = {An apparatus for transmitting multistage phase shift keying signals comprising a symbol stream, interpolation and pulse shaping means (4), and digital-to-analog converting means (5) for providing an analog base band transmit signal. A displacing means (3) for producing displaced symbols from the symbol stream is arranged at the input of the interpolation and pulse shaping means (4) and includes detecting means (14 ... 17) for detecting predetermined symbol sequences in the symbol stream. If such symbol sequences are detected, displaced symbols (S3', S3") are produced with a view to avoid peak power at the analog base band transmit signal or to avoid crossing near zero power.},
    author = {Fischer, Georg and Ritter, Kai-Uwe},
    cris = {fischer_patent_2002a},
    year = {2002},
    month = {10},
    number = {EP1253757A1},
    title = {Phase shift keying (PSK) modulator capable of reducing the peak to average power ratio},
    type = {patent},
    url = {http://ip.com/pat/EP1253757A1},
    }
  • G. Fischer, Method and device for adapting transmission power levels in transmission systems, 2002. [Bibtex]
    @patent{fischer_patent_2002,
    author = {Fischer, Georg},
    cris = {fischer_patent_2002},
    year = {2002},
    month = {05},
    number = {EP1202448B1},
    title = {Method and device for adapting transmission power levels in transmission systems},
    type = {patent},
    url = {http://ip.com/pat/EP1202448B1},
    }

2001

  • G. Fischer, L. T. Manzione, and M. Tsai, Antenna structure for electromagnetic structures, 2001. [Bibtex]
    @patent{fischer_patent_2001b,
    abstract = {Disclosed is an antenna structure for transmitting and receiving electromagnetic signals, in particular for mobile telecommunication using the GSM Standard. The antenna structure allows for decoupling between the transmission path and reception path. The antenna structure has two preferably perpendicular couplings with two separate ports, for example for the connection of a transmitting device and a receiving device. Furthermore, the impedances of the two couplings can advantageously be matched, independently of one another, to the transmitting device and receiving device and/or the frequency bands of the signals to be transmitted or received.},
    author = {Fischer, Georg and Manzione, Louis Thomas and Tsai, Ming-Ju},
    cris = {fischer_patent_2001b},
    year = {2001},
    month = {12},
    number = {EP1160917A1},
    title = {Antenna structure for electromagnetic structures},
    type = {patent},
    url = {http://ip.com/pat/EP1160917A1},
    }
  • G. Fischer and F. Obernosterer, Radio system, antenna arrangement and polarization modulator for generating a transmit signal with changing polarization, 2001. [Bibtex]
    @patent{fischer_patent_2006a,
    abstract = {Improved frequency utilization in a radio network is achieved by using a radio system with a plurality of base stations, which respectively have at least one transmitter and one receiver, each base station being assigned at least one dual-polarized antenna. More efficient utilization of the available frequency band, and consequently a reduction in the cluster size, is made possible by the dual-polarized antenna being assigned a polarization modulator for changing at predetermined points in time the polarization state of a transmit signal to be transmitted.},
    author = {Fischer, Georg and Obernosterer, Frank},
    cris = {fischer_patent_2006a},
    year = {2001},
    month = {09},
    day = {07},
    number = {US20020034968A1},
    title = {Radio system, antenna arrangement and polarization modulator for generating a transmit signal with changing polarization},
    type = {patent},
    url = {http://ip.com/pat/US20020034968},
    }
  • G. Fischer, Fast power control in wireless communication network, 2001. [Bibtex]
    @patent{fischer_patent_2001a,
    abstract = {The invention relates to the controlling of transmission power of a wireless communication network, and in particular to the controlling of transmission power in the downlink direction of a GSM-network. An object of the present invention is, to provide a new and improved approach, in particular for enhancing the spectral efficiency, by realizing a fast controlling of transmission power substantially independent of any upcoming addition to a standard relating to wireless communication networks to ensure a transmission power control that is immediately available and compatible to already existing mobile stations. The invention proposes for the controlling of the transmission power the steps of receiving at a base station an uplink signal transmitted by a user equipment, detecting at least one kind of information parameter from said uplink signal during definable time periods, comparing the information parameters detected during a respective time period with each other and periodically adjusting the downlink transmission power between said base station and said user equipment in dependence on the comparison for providing a fast power control loop between said base station and said user equipment to reduce varying fading effects.},
    author = {Fischer, Georg},
    cris = {fischer_patent_2001a},
    year = {2001},
    month = {09},
    day = {24},
    keywords = {power control,wireless communication},
    number = {EP1296464A1},
    title = {Fast power control in wireless communication network},
    type = {patent},
    url = {http://ip.com/pat/EP1296464A1},
    }
  • N. Geng, C. Ruppel, L. Reindl, and M. Huemer, Verfahren zum Entzerren von Signalen und Vorrichtung zur Durchführung des Verfahrens, 2001. [Bibtex]
    @patent{geng_patent_2001,
    abstract = {Verfahren zum Entfernen der Verzerrung aus einem empfangenen Signal mit einer Anzahl von Symbolen mittels eines Entscheidungs-Feedback, bei dem das Empfangssignal im Vorwärtszweig (10) nach einem Entzerrer (14) verarbeitet wird und anschließend mit Rückwärtsverzweigung (12) gelieferten der Entzerrer (14). Das Empfangssignal wird in dem Frequenzbereich, in dem vorderen Schenkel (10) und im Zeitbereich in der Rückwärtsrichtung Schenkel (12) verarbeitet. Eine unabhängige Anspruch ist eine Vorrichtung zum Entfernen der Verzerrung aus einem empfangenen Signal enthalten ist.},
    author = {Geng, Norbert and Ruppel, Clemens and Reindl, Leonhard and Huemer, Mario},
    cris = {geng_patent_2001},
    year = {2001},
    month = {03},
    day = {09},
    keywords = {Equalizer,signal correction},
    number = {DE10111496A1},
    title = {Verfahren zum Entzerren von Signalen und Vorrichtung zur Durchführung des Verfahrens},
    type = {patent},
    url = {http://ip.com/pat/DE10111496A1},
    }
  • G. Fischer and K. Schmitt, Process and apparatus for the automatic detection of a faulty cabling in radio communication equipments, 2001. [Bibtex]
    @patent{fischer_patent_2001,
    abstract = {The invention relates to a process for the automatic detection of the allocation of at least one transmitting device and/or receiving device to a transmitting and/or receiving antenna of a radio communication equipment, which has at least one transmitting device and/or receiving device (1, 2..m1, 1, 2..m2, 1, 2..mn) and at least one transmitting and/or receiving antenna (701, 702..70n; 751, 752..75n). For this purpose, at least one transmitting device and/or receiving device is first allocated to each transmitting antenna and/or receiving antenna. A predetermined transmitting device and/or receiving device is then activated, and a signal or noise is fed into the radio communication equipment. The signal or noise is evaluated in at least one detector device (1, 2..m1, 1, 2..m2, 1, 2..mn; 501, 502..50n), which is arranged at a predetermined place of the radio communication equipment. An allocation of the activated transmitting device and/or receiving device to one of the transmitting antennas and/or receiving antennas is ascertained in dependence on the evaluated signal or noise level.},
    author = {Fischer, Georg and Schmitt, K.},
    cris = {fischer_patent_2001},
    year = {2001},
    month = {02},
    day = {21},
    number = {EP1077546A1},
    title = {Process and apparatus for the automatic detection of a faulty cabling in radio communication equipments},
    type = {patent},
    url = {http://ip.com/pat/EP1077546A1},
    }

2000

  • T. Ostertag, W. Schacherbauer, and C. Korden, Funk-Sende-/Empfangssystem, 2000. [Bibtex]
    @patent{ostertag_patent_2000,
    abstract = {Funk-Sende-/Empfangssystem, aufweisend eine erste, vorwiegend elektrisch wirksame Antenne (E) und eine zweite, vorwiegend magnetisch wirksame Antenne (M), wobei eine der Antennen (E,M) mit einem Empfangszweig (Rx) verbunden ist, und die andere Antenne (E,M) mit einem Sendezweig (Tx) verbunden ist, wobei die ersten Antenne (E) und die zweiten Antenne (M) polarisationsentkoppelt sind, dadurch gekennzeichnet, daß sich mindestens die mit dem Empfangszweig (Rx) verbundene Antenne (E,M) im Nahfeld der mit dem Sendezweig (Tx) verbundenen Antenne (E, M) befindet, wobei das Nahfeld sich in einem Abstand um die sendende Antenne (E,M) erstreckt, der kleiner ist als die kürzeste ausgesandte Wellenlänge.},
    author = {Ostertag, Thomas and Schacherbauer, Werner and Korden, Christian},
    cris = {ostertag_patent_2000},
    year = {2000},
    month = {05},
    day = {25},
    keywords = {Antenna System,Decoupling,Electric antenna,magnetic antenna},
    number = {DE10025992B4},
    title = {Funk-Sende-/Empfangssystem},
    type = {patent},
    url = {http://ip.com/pat/DE10025992B4},
    }
  • G. Fischer and K. Ritter, Schaltungsanordnung zur Digital-Analog-Wandlung, 2000. [Bibtex]
    @patent{fischer_patent_2000a,
    abstract = {The invention relates to a circuit arrangement (10) for digital-to-analog conversion of a data stream. Ever faster digital-to-analog converters with high resolution are demanded nowadays for the digital-to-analog conversion of a data stream. In order to be able to realize both performance features in a cost-effective circuit arrangement, provision is made of a device (20) for splitting the data stream into at least two data streams with a clock rate of 1/(Tin/n) in each case, where n is greater than or equal to 2. Furthermore, provision is made of at least two digital-to-analog converters (30, 35; 80, 82, 84, 86) for converting a respective one of the partial data streams with a conversion clock rate of 1/(Tin/n) and, furthermore, of a device (40; 50) for combining the converted partial data streams.},
    author = {Fischer, Georg and Ritter, Kai-Uwe},
    cris = {fischer_patent_2000a},
    year = {2000},
    month = {05},
    day = {31},
    number = {EP1160986A1},
    title = {Schaltungsanordnung zur Digital-Analog-Wandlung},
    type = {patent},
    url = {http://ip.com/pat/EP1160986A1},
    }
  • G. Fischer, Single element antenna structure with high isolation, 2000. [Bibtex]
    @patent{fischer_patent_2000,
    abstract = {Disclosed is an antenna structure for transmitting and receiving electromagnetic signals, in particular for mobile telecommunication using the GSM Standard. The antenna structure allows for decoupling between the transmission path and reception path. The antenna structure has two preferably perpendicular couplings with two separate ports, for example for the connection of a transmitting device and a receiving device. Furthermore, the impedances of the two couplings can advantageously be matched, independently of one another, to the transmitting device and receiving device and/or the frequency bands of the signals to be transmitted or received.},
    author = {Fischer, Georg},
    cris = {fischer_patent_2000},
    year = {2000},
    month = {05},
    day = {31},
    keywords = {antenna,isolation},
    number = {US6288679},
    title = {Single element antenna structure with high isolation},
    type = {patent},
    url = {http://ip.com/pat/US6288679},
    }

1997

  • F. Seifert, R. Weigel, and Z. Zhang, Codemoduliertes Uebertragungsverfahren und nach diesem Uebertragungsverfahren arbeitendes Uebertragungssystem, 1997. [Bibtex]
    @patent{seifert_patent_1997,
    abstract = {Die Erfindung betrifft ein codemoduliertes Uebertragungsverfahren und ein nach diesem Uebertragungsverfahren arbeitendes Uebertragungssystem gemaeß Oberbegriff des Patentanspruches 1 bzw. des Patentanspruches 7. Ein derartiges Uebertragungsverfahren und Uebertragungssystem sind bereits aus der deutschen Offenlegungsschrift DE 4333 396 A1 bekannt.},
    author = {Seifert, Franz and Weigel, Robert and Zhang, Zhongping},
    cris = {seifert_patent_1997},
    year = {1997},
    month = {08},
    day = {07},
    number = {EP0878064B1},
    title = {Codemoduliertes Uebertragungsverfahren und nach diesem Uebertragungsverfahren arbeitendes Uebertragungssystem},
    type = {patent},
    url = {http://ip.com/pat/EP0878064B1},
    }

1996

  • F. Bode, F. Koertje, M. Barkow, and G. Fischer, Aerial arrangement for attaching a planar aerial to the inside of a vehicle window, 1996. [Bibtex]
    @patent{bode_patent_1996,
    abstract = {The invention relates to an aerial arrangement for attaching a planar aerial to the inside of a vehicle window for the purpose of radio communication between a vehicle unit and a transmitter and or receiver outside the vehicle, in particular on frequencies in the GHz range. The directivity of the aerial is affected, by inserting an intermediate dielectric member with a dielectric constant between the larger radiation or reception angle. The distance between the pane and the aerial is also advantageously reduced.},
    author = {Bode, Friedrich-Wilhelm and Koertje, Frank and Barkow, Matthias and Fischer, Georg},
    cris = {bode_patent_1996},
    year = {1996},
    month = {12},
    day = {12},
    number = {WO1997035354A1},
    title = {Aerial arrangement for attaching a planar aerial to the inside of a vehicle window},
    type = {patent},
    url = {http://ip.com/pat/WO1997035354A1},
    }

1995

  • G. Fischer and T. Eibeck, Phasengesteuerte zweidimensionale Gruppenantenne als teiladaptives Empfangssystem für den Satellitenrundfunk mit elektronischer Beeinflussung der Richtcharakteristik und der Polarisation, 1995. [Bibtex]
    @patent{fischer_patent_1995,
    abstract = {Technisches Problem der Erfindung, technische Aufgabe und Zielsetzung DOLLAR A Übliche zweidimensionale Gruppenantennen, bei denen die Hauptempfangsrichtung fest senkrecht zur Antennenfläche zeigt, müssen mechanisch ausgerichtet werden. Dies führt beim Satellitenempfang dazu, daß die Antenne bei Montage an einer Hauswand von der Wand absteht, was sich negativ auf das Erscheinungsbild auswirkt. DOLLAR A Die neue phasengesteuerte Gruppenantenne erlaubt nun die Montage flach an einer grob zu dem gewünschten Satelliten ausgerichteten Hauswand und eine automatische Anpassung der Richtcharakteristik und der Polarisation. DOLLAR A Lösung des Problems bzw. der technischen Aufgabe DOLLAR A Durch die Vorprägung der Richtcharakteristik der seriell gespeisten Elemente einer Spalte wird die starke Neigung in Elevationsrichtung vermieden. Die Anpassung an den Azimutwinkel erfolgt durch Phasengewichtung der Signale der Spalten. Die Anpassung der Polarisation erfolgt durch Überlagerung orthogonal polarisierter Anteile benachbarter Spalten. Hierdurch wirken sich die Phasengewichte der Spaltensignale sowohl auf die Richtcharakteristik als auch auf die vom Einfallswinkel abhängige Polarisation aus. DOLLAR A Anwendunggebiet DOLLAR A Die phasengesteuerte Gruppenantenne eignet sich für den stationären als auch mobilen Empfang von Wellen beliebiger Polarisation auch bei Mehrwegeausbreitung.},
    author = {Fischer, Georg and Eibeck, T.},
    cris = {fischer_patent_1995},
    year = {1995},
    month = {08},
    day = {25},
    keywords = {Satellitenempfang,Satellitenantenne,Array,Richtcharakteristik},
    number = {DE19531309C2},
    title = {Phasengesteuerte zweidimensionale Gruppenantenne als teiladaptives Empfangssystem für den Satellitenrundfunk mit elektronischer Beeinflussung der Richtcharakteristik und der Polarisation},
    type = {patent},
    url = {http://ip.com/pat/DE19531309C2},
    }

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