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  • S. Lindner, F. Lurz, S. Linz, R. Weigel, and A. Koelpin, "Mixer Assisted Interferometric Six-Port System for Accurate Distance Measurements" in European Radar Conference (EuRAD), Nürnberg, 2017 (to be published). [Bibtex]
    @inproceedings{lindner2017,
    author = {Lindner, Stefan and Lurz, Fabian and Linz, Sarah and Weigel, Robert and Koelpin, Alexander},
    booktitle = {European Radar Conference (EuRAD)},
    cris = {https://cris.fau.de/converis/publicweb/publication/1061126},
    year = {2017},
    month = {10},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Mixer Assisted Interferometric Six-Port System for Accurate Distance Measurements},
    venue = {Nürnberg},
    }
  • F. Michler, S. Lindner, F. Lurz, S. Erhardt, R. Weigel, and A. Koelpin, "Zero-Bias Schottky Power Detector Design for Six-Port based Radar Systems" in European Microwave Conference, Nürnberg, 2017 (to be published). [Bibtex]
    @inproceedings{michler2017,
    author = {Michler, Fabian and Lindner, Stefan and Lurz, Fabian and Erhardt, Stefan and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {European Microwave Conference},
    cris = {https://cris.fau.de/converis/publicweb/publication/1061108},
    year = {2017},
    month = {10},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Zero-Bias Schottky Power Detector Design for Six-Port based Radar Systems},
    venue = {Nürnberg},
    }
  • T. Mai, K. Schmid, J. Röber, A. Hagelauer, and R. Weigel, "A fully-differential Operational Amplifier using a new Chopping Technique and adaptive Miller Compensation" in 60th IEEE International Midwest Symposium on Circuits and Systems, Boston, Massachusetts, 2017 (to be published). [Bibtex]
    @inproceedings{mai2017,
    abstract = {A fully differential CMOS operational amplifier is presented. It uses a new chopping technique that works without the use of switching transistors in the high gain path, resulting in high noise performance and low offset. It is designed in a low-cost 180 nm process with a 5V supply voltage. In critical places, such as the differential pair, 1.8V-devices are used, as they provide much better matching, parasitics and noise performance. They are protected from breakdown conditions by several circuit techniques. Some of them are described below. The Monticelli Class-AB output stage with adaptive Miller Compensation uses a mosfet nulling resistor that is biased without an extra amplifier. This ensures great robustness over process variations and introduces no additional stability issues. The operational amplifier is used in a differential programmable gain amplifier for processing signals of up to 50 kHz bandwith with a SINAD > 100 dB, making it suitable as a preamplifier for 18-Bit ADCs.},
    author = {Mai, Timo and Schmid, Konstantin and Röber, Jürgen and Hagelauer, Amelie and Weigel, Robert},
    language = {English},
    booktitle = {60th IEEE International Midwest Symposium on Circuits and Systems},
    cris = {https://cris.fau.de/converis/publicweb/publication/1063446},
    year = {2017},
    month = {08},
    faupublication = {yes},
    keywords = {chopping; operational amplifier; gain boosting; 1/f-noise; offset; programmable gain amplifier; Miller Compensation; Monticelli},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {A fully-differential Operational Amplifier using a new Chopping Technique and adaptive Miller Compensation},
    venue = {Boston, Massachusetts},
    }
  • 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]
    @inproceedings{lurz2017a,
    author = {Lurz, Fabian and Müller, Simon and Lindner, Stefan and Linz, Sarah and Gardill, Markus and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    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},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Smart Communication and Relative Localization System for Firefighters and Rescuers},
    venue = {Honolulu, Hawaii},
    }
  • 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]
    @inproceedings{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},
    language = {English},
    publisher = {IEEE},
    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},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Validation of a Functional Principle for a Broadband Millimeter-Wave Power Detection Structure in a Recent BiCMOS Technology},
    type = {Konferenzschrift},
    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]
    @inproceedings{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},
    publisher = {IEEE CAS},
    booktitle = {2017 IEEE International Symposium on Circuits and Systems (ISCAS)},
    cris = {https://cris.fau.de/converis/publicweb/publication/1060645},
    year = {2017},
    month = {05},
    eventtitle = {IEEE International Symposium on Circuits and Systems (ISCAS)},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Dimensioning and Comparison of Common Compensation Topologies for IPT Systems},
    venue = {Baltimore, Maryland},
    }
  • C. Will, K. Shi, R. Weigel, and A. Koelpin, "Advanced Template Matching Algorithm for Instantaneous Heartbeat Detection using Continuous Wave Radar Systems" in IEEE MTT-S International Microwave Bio Conference (IMBioC), Göteborg, 2017 (to be published). [Bibtex]
    @inproceedings{will2017a,
    abstract = {Instantaneous heartbeat detection is a key parameter in modern vital sign monitoring. Continuous wave (CW) radar systems enable contactless measurements of the vibrations on the human skin effected by heartbeats. Since a high accuracy as well as robustness of the measurement sensor is appreciated, the belonging signal processing routine has to deal with challenging requirements. In this paper, an advanced template matching (ATM) algorithm is proposed to enhance the performance regarding instantaneous heartbeat detection using CW radar systems. Compared to common template matching algorithms, multiple heterogeneous templates are utilized in this approach, at which the appropriate template type is determined by prior feature detection. A 24 Ghz Six-Port microwave interferometer is used for vital sign measurements of a person-under-test. The functionality of the proposed algorithm is verified by a synchronous reference electrocardiogram (ECG) and its enhancement is shown by reducing the root-mean-square error (RMSE) of the interbeat intervals (IBI) compared to an ordinary template matching algorithm.},
    author = {Will, Christoph and Shi, Kilin and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    publisher = {IEEE},
    booktitle = {IEEE MTT-S International Microwave Bio Conference (IMBioC)},
    cris = {https://cris.fau.de/converis/publicweb/publication/1061648},
    year = {2017},
    month = {05},
    eventdate = {2017-05-15/2017-05-17},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Advanced Template Matching Algorithm for Instantaneous Heartbeat Detection using Continuous Wave Radar Systems},
    type = {Konferenzschrift},
    venue = {Göteborg},
    }

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 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},
    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},
    }

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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  • Y. Can, Excellent oral presentation certificate, International Conference on Electrical and Electronics Engineering, 2017. [Bibtex]
    @prize{can_prize_2017,
    author = {Can, Yavuz},
    booktitle = {International Conference on Electrical and Electronics Engineering},
    cris = {can_prize_2017},
    year = {2017},
    month = {04},
    day = {10},
    title = {Excellent oral presentation certificate},
    }
  • 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_prize2017,
    abstract = {For the paper "Segmental Polynomial Approximation based phase error correction for precise near field displacement measurements using six-port microwave interferometers},
    author = {Will, Christoph and Linz, Sarah and Mann, Sebastian and Lurz, Fabian and Lindner, Stefan and Weigel, Robert and Koelpin, Alexander},
    booktitle = {IEEE Radio and Wireless Week},
    cris = {will_prize2017},
    year = {2017},
    month = {01},
    day = {18},
    title = {Second Prize Student Paper Competition},
    }
  • M. Kloc, R. Weigel, and A. Koelpin, Best Conference Paper Award, Advances in Wireless and Optical Communications (RTUWO), 2016. [Bibtex]
    @prize{kloc_prize_2016,
    abstract = {Enhancing the Real-Time Performance of a Wireless Hardware-in-the-Loop TestSystem in ISM Bands},
    author = {Kloc, Matej and Weigel, Robert and Koelpin, Alexander},
    booktitle = {Advances in Wireless and Optical Communications (RTUWO)},
    cris = {kloc_prize_2016},
    year = {2016},
    month = {11},
    day = {04},
    title = {Best Conference Paper Award},
    }

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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