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Neueste Veröffentlichungen

  • F. Trenz, R. Weigel, and D. Kissinger, "Validation of a Functional Principle for a Broadband Millimeter-Wave Power Detection Structure in a Recent BiCMOS Technology" in IEEE Radio Frequency Integrated Circuits Symposium, Honolulu, Hawaii, 2017 (to be published). [Bibtex]
    @unpublished{trenz2017,
    abstract = {In this paper, a functional principle for a broadband thermal detector suited for a monolithical integration is shown. Two tantalum load resistors are heated by an input signal, while the temperature at a fixed distance is recorded on chip with a differential temperature sensing bridge. An integrated differential to single-ended stage amplifies the bridges differential voltage and makes an output voltage proportional to the input power of the detector available. The thermal resistance and capacitance between the load resistor and the sensing cell act as a low pass filter in the electrical regime. Based on this concept, a detector chip has been designed, which has been analyzed in thermal simulations. The realized detector has been characterized on-chip and bonded to a microwave substrate for a system performance estimation. Its input impedance is tuned to 50 Ohms and measured matching is better than -15dB from 10MHz to 43.5GHz. With a low supply voltage of 1.5V and its active area of around 80x36um2, the detector is suitable for an integrated power measurement solution.},
    author = {Trenz, Florian and Weigel, Robert and Kissinger, Dietmar},
    booktitle = {IEEE Radio Frequency Integrated Circuits Symposium},
    cris = {https://cris.fau.de/converis/publicweb/publication/1058073},
    year = {2017},
    month = {06},
    eventdate = {2017-06-04/2017-06-06},
    faupublication = {yes},
    keywords = {Detectors;Envelope detectors;Monolithic integrated circuits;BiCMOS integrated circuits;Thermodynamics},
    peerreviewed = {Yes},
    title = {Validation of a Functional Principle for a Broadband Millimeter-Wave Power Detection Structure in a Recent BiCMOS Technology},
    venue = {Honolulu, Hawaii},
    }
  • F. Lurz, S. Müller, S. Lindner, S. Linz, M. Gardill, R. Weigel, and A. Koelpin, "Smart Communication and Relative Localization System for Firefighters and Rescuers" in IEEE International Microwave Symposium, Honolulu, Hawaii, 2017 (to be published). [Bibtex]
    @unpublished{lurz2017a,
    author = {Lurz, Fabian and Müller, Simon and Lindner, Stefan and Linz, Sarah and Gardill, Markus and Weigel, Robert and Koelpin, Alexander},
    booktitle = {IEEE International Microwave Symposium},
    cris = {https://cris.fau.de/converis/publicweb/publication/1060854},
    year = {2017},
    month = {06},
    eventdate = {2017-06-04/2017-06-09},
    faupublication = {yes},
    peerreviewed = {Yes},
    title = {Smart Communication and Relative Localization System for Firefighters and Rescuers},
    venue = {Honolulu, Hawaii},
    }
  • M. Trautmann, M. Ohlendorf, B. Sanftl, R. Weigel, and A. Koelpin, "Dimensioning and Comparison of Common Compensation Topologies for IPT Systems" in 2017 IEEE International Symposium on Circuits and Systems (ISCAS), Baltimore, Maryland, 2017 (to be published). [Bibtex]
    @unpublished{trautmann2017a,
    abstract = {This paper presents the dimensioning as well as the comparison of common compensation topologies for inductive power transfer (IPT) systems. A compensation is needed on the primary as well as the secondary side. It consists of a capacitor (parallel or series) in the simplest case or a combination of reactive components (like LCC). This work is the first compilation of the dimensioning, considering all potential combinations of these three compensation possibilities. The five most promising solutions are simulated and the results are compared for constant current- and voltage-operation with varying loads as well as different coupling factors. Finally the different topologies are compared by selected criteria and evaluated accordingly.},
    author = {Trautmann, Martin and Ohlendorf, Marius and Sanftl, Benedikt and Weigel, Robert and Koelpin, Alexander},
    booktitle = {2017 IEEE International Symposium on Circuits and Systems (ISCAS)},
    cris = {https://cris.fau.de/converis/publicweb/publication/1060645},
    year = {2017},
    month = {05},
    faupublication = {yes},
    peerreviewed = {Yes},
    title = {Dimensioning and Comparison of Common Compensation Topologies for IPT Systems},
    venue = {Baltimore, Maryland},
    }
  • C. Schmidt, M. Luebcke, M. Dietz, R. Weigel, D. Kissinger, and A. Hagelauer, "Determination of Changes in NaCl Concentration in Aqueous Solutions Using an M-Sequence Based Sensor System" in International Microwave Bio-Conference, Goeteborg, 2017 (to be published). [Bibtex]
    @unpublished{schmidt2017a,
    author = {Schmidt, Christian and Luebcke, Maximilian and Dietz, Marco and Weigel, Robert and Kissinger, Dietmar and Hagelauer, Amelie},
    booktitle = {International Microwave Bio-Conference},
    cris = {https://cris.fau.de/converis/publicweb/publication/1061393},
    year = {2017},
    month = {05},
    eventdate = {2017-05-15/2017-05-17},
    faupublication = {yes},
    peerreviewed = {Yes},
    title = {Determination of Changes in NaCl Concentration in Aqueous Solutions Using an M-Sequence Based Sensor System},
    venue = {Goeteborg},
    }
  • [DOI] F. Lurz, S. Lindner, S. Linz, S. Mann, R. Weigel, and A. Koelpin, "High-Speed Resonant Surface Acoustic Wave Instrumentation Based on Instantaneous Frequency Measurement", 2017. [Bibtex]
    @article{lurz2017,
    abstract = {Surface acoustic wave (SAW) resonators are used for a broad range of wireless sensing applications, some of them having high demands on the resolution as well as the measurement update rate. This paper presents a new interrogation method for precise and fast frequency determination of passive SAW resonators based on instantaneous frequency measurement (IFM) by a low-cost Six-Port interferometer. By using a delay line, the frequency measurement is reduced to a phase measurement that can be instantaneously evaluated by the Six-Port network. No complex signal processing is necessary providing high update rates and low hardware costs. An in-depth analysis of the system concept and its building blocks is presented and the advantages as well as the limitations are discussed and compared to the current state-of-the-art. Finally, a demonstrator in the 2.4 GHz frequency band shows the feasibility and the precision of the concept with measurement times of only a few microseconds.},
    author = {Lurz, Fabian and Lindner, Stefan and Linz, Sarah and Mann, Sebastian and Weigel, Robert and Koelpin, Alexander},
    cris = {https://cris.fau.de/converis/publicweb/publication/1060635},
    year = {2017},
    month = {05},
    doi = {10.1109/TIM.2016.2642618},
    faupublication = {yes},
    journaltitle = {IEEE Transactions on Instrumentation and Measurement},
    peerreviewed = {Yes},
    title = {High-Speed Resonant Surface Acoustic Wave Instrumentation Based on Instantaneous Frequency Measurement},
    }
  • B. Sanftl, M. Trautmann, M. Kleinhenz, R. Weigel, and A. Koelpin, "Increased Data Rate using Higher-order Digital Modulation for Simultaneous Inductive Data and Power Transfer Systems" in IEEE MTT-S Wireless Power Transfer Conference 2017, Taipeh, Taiwan, 2017 (to be published). [Bibtex]
    @unpublished{sanftl2017,
    abstract = {This paper presents an improved communication
    architecture with increased data rate for inductive power transfer
    (IPT) systems. The main challenge is to enable robust and
    reliable communication within the noisy environment of the
    power transfer. Therefore the communication channel, consisting
    of the coupled pair of coils of the inductive power transfer
    system is analysed. From this a frequency band with an excellent
    available signal to noise ratio was identified and is exploited using
    higher-order digital modulation schemes as n-th quadrature
    amplitude modulation or phase shift keying to increase the data
    rate. Furthermore the bandwidth of the system shall be extended
    by the utilisation of an equalizer. The implemented system using
    a software defined radio approach will be presented and it will
    be shown that reliable and fast communication is possible in this
    harsh environment.}, author = {Sanftl, Benedikt and Trautmann, Martin and Kleinhenz, Markus and Weigel, Robert and Koelpin, Alexander}, booktitle = {IEEE MTT-S Wireless Power Transfer Conference 2017}, cris = {https://cris.fau.de/converis/publicweb/publication/1061287}, year = {2017}, month = {05}, faupublication = {yes}, keywords = {Inductive power transfer,inductive data communication,power filters,wireless communication,industrial electronics,digital modulation}, peerreviewed = {Yes}, title = {Increased Data Rate using Higher-order Digital Modulation for Simultaneous Inductive Data and Power Transfer Systems}, venue = {Taipeh, Taiwan}, }
  • M. Frank, R. Weigel, and A. Koelpin, "Design of a 24 GHz Reconfigurable Transmitarray Element with Continuous Phase Range" in European Conference on Antennas and Propagation (EuCAP) 2017, Paris, 2017 (to be published). [Bibtex]
    @unpublished{frank2017,
    abstract = {This paper presents a reconfigurable transmitarray antenna unit cell for a frequency of 24 GHz. A continuous phase range is obtained by loading patches with varactor diodes on the outer layers of a printed circuit board (PCB) while the signal couples through slots in the inner layers. The design, numerical and experimental characterization of the unit cell in a rectangular WR-42 waveguide are reported. A phase tuning range of 120° was achieved with a custom layer stack which could be extended to 145° using solely RF-substrates.},
    author = {Frank, Martin and Weigel, Robert and Koelpin, Alexander},
    booktitle = {European Conference on Antennas and Propagation (EuCAP) 2017},
    cris = {https://cris.fau.de/converis/publicweb/publication/1060640},
    year = {2017},
    month = {03},
    eventdate = {2017-03-16/2017-03-24},
    faupublication = {yes},
    peerreviewed = {Yes},
    title = {Design of a 24 GHz Reconfigurable Transmitarray Element with Continuous Phase Range},
    venue = {Paris},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


Alle Publikationen...

Neueste Patente

  • 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},
    location = {Horst Siedle GmbH \& Co. KG},
    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},
    location = {Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.},
    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},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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Neueste Preise

  • C. Will, S. Linz, S. Mann, F. Lurz, S. Lindner, R. Weigel, and A. Koelpin, Second Prize Student Paper Competition, IEEE Radio and Wireless Week, 2017. [Bibtex]
    @prize{will_prize_2017,
    author = {Will, Christoph and Linz, Sarah and Mann, Sebastian and Lurz, Fabian and Lindner, Stefan and Weigel, Robert and Koelpin, Alexander},
    location = {Phoenix, AZ, USA},
    booktitle = {IEEE Radio and Wireless Week},
    cris = {will_prize_2017},
    year = {2017},
    month = {01},
    title = {Second Prize Student Paper Competition},
    type = {prize},
    }
  • M. Kloc, R. Weigel, and A. Koelpin, Best Conference Paper Award, Advances in Wireless and Optical Communications (RTUWO), 2016. [Bibtex]
    @prize{kloc_prize_2016,
    author = {Kloc, Matej and Weigel, Robert and Koelpin, Alexander},
    location = {Riga, Latvia},
    booktitle = {Advances in Wireless and Optical Communications ({RTUWO})},
    cris = {kloc_prize_2016},
    year = {2016},
    month = {11},
    title = {Best Conference Paper Award},
    type = {prize},
    }
  • S. Lindner, Förderung einer Kongressreise (Sensors 2016), Deutscher Akademischer Austauschdienst, 2016. [Bibtex]
    @prize{lindner_prize_2016,
    abstract = {Förderung einer Kongressreise anlässlich der Sensors2016 in Orlando, Florida, USA},
    author = {Lindner, Stefan},
    location = {Orlando, FL, USA},
    booktitle = {Deutscher Akademischer Austauschdienst},
    cris = {lindner_prize_2016},
    year = {2016},
    month = {10},
    title = {Förderung einer Kongressreise (Sensors 2016)},
    type = {prize},
    }

COPYRIGHT NOTICE: Copyright and all rights of the material above are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the appropriate copyright. The material may not be reposted without the explicit permission of the copyright holder.

COPYRIGHT NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

COPYRIGHT NOTICE FOR EUMA PUBLICATIONS: © EUMA. Personal use of this material is permitted. Permission from European Microwave Association(EUMA) must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.


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