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  • J. Rimmelspacher, R. Weigel, A. Hagelauer, and V. Issakov, "A Quad-Core 60 GHz Push-Push 45 nm SOI CMOS VCO with -101.7 dBc/Hz Phase Noise at 1 MHz offset, 19 % Continuous FTR and -187 dBc/Hz FoMT" in European Solid-State Circuits Conference (ESSCIRC), Dresden, Germany, 2018 (to be published). [Bibtex]
    @inproceedings{rimmelspacher2018d,
    abstract = {This paper presents a 60 GHz Quad-Core push-push VCO in 45 nm partially depleted Silicon-on-Insulator (SOI) CMOS. The measured phase noise (PN) at 60.5 GHz is −101.7 dB/Hz at 1 MHz offset from carrier. The continuous frequency-tuning range (FTR) is 19 %. The Quad-Core VCO consumes only 40 mW DC power. The complete circuit including fundamental and second harmonic (H2) output buffers draws 110 mA from a single 1 V supply. The VCO cores are coupled via resonant-tank transformers. A similar transformer-coupled Dual-Core VCO is fabricated and measured to prove the relative PN improvement between Dual-Core and Quad-Core topology. The total area of the Quad-Core VCO excluding pads is 0.1 mm2.},
    author = {Rimmelspacher, Johannes and Weigel, Robert and Hagelauer, Amelie and Issakov, Vadim},
    booktitle = {European Solid-State Circuits Conference (ESSCIRC)},
    cris = {https://cris.fau.de/converis/publicweb/publication/200493727},
    year = {2018},
    month = {12},
    day = {01},
    eventdate = {2018-09-03/2018-09-06},
    faupublication = {yes},
    keywords = {millimeter-wave,wideband,silicon-on-insulator,CMOS technology,System-on-Chip},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {A Quad-Core 60 GHz Push-Push 45 nm SOI CMOS VCO with -101.7 dBc/Hz Phase Noise at 1 MHz offset, 19 % Continuous FTR and -187 dBc/Hz FoMT},
    type = {Konferenzschrift},
    venue = {Dresden, Germany},
    }
  • K. Shi, S. Schellenberger, T. Steigleder, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, "Contactless Carotid Pulse Measurement Using Continuous Wave Radar" in 2018 Asia-Pacific Microwave Conference, Kyoto, 2018 (to be published). [Bibtex]
    @inproceedings{shi2018b,
    abstract = {Cardiovascular diseases are one of the major causes of death. Regular checkups and preventive actions can drastically help reducing fatal incidences. This can be achieved by monitoring the carotid artery or rather the carotid pulse signal. Commonly, ultrasound devices are used for that purpose. However, these devices are costly, mostly stationary and their usage requires training and experience. This paper investigates the possible usage of radar systems as a contactless and low-cost alternative for carotid pulse measurements. Theoretical investigations reveal a linear relationship between the measurands of both devices and synchronous recordings from three test persons further confirm the feasibility of using radar systems as a potential device for monitoring cardiovascular diseases.},
    author = {Shi, Kilin and Schellenberger, Sven and Steigleder, Tobias and Michler, Fabian and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {2018 Asia-Pacific Microwave Conference},
    cris = {https://cris.fau.de/converis/publicweb/publication/202749417},
    year = {2018},
    month = {11},
    day = {06},
    eventdate = {2018-11-06/2018-08-09},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Contactless Carotid Pulse Measurement Using Continuous Wave Radar},
    venue = {Kyoto},
    }
  • S. Schellenberger, K. Shi, T. Steigleder, F. Michler, F. Lurz, R. Weigel, and A. Koelpin, "Support Vector Machine-Based Instantaneous Presence Detection for Continuous Wave Radar Systems" in 2018 Asia-Pacific Microwave Conference, Kyoto, 2018 (to be published). [Bibtex]
    @inproceedings{schellenberger2018a,
    abstract = {Instantaneous detection of missing vital signs at inpatient beds enables fast intervention for cardiac arrests.
    Using a 24 GHz bistatic radar, a fast presence detection based on a support vector machine (SVM) classifer is realized. Large body motions or even small distance deviations, such as movement of the chest induced by heartbeat or breathing, are distinguishable from the measured noise of an unoccupied bed. For classifcation two features are calculated based on windowed I and Q data. Performance is evaluated by varying window sizes from 0.2 ... 1.5 s for feature calculation and training of the SVM classifer. In the resting scenario an accuracy of 99.2% and F1-score of 99.1% with windows of 0.2 s is achieved.
    }, author = {Schellenberger, Sven and Shi, Kilin and Steigleder, Tobias and Michler, Fabian and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander}, language = {English}, booktitle = {2018 Asia-Pacific Microwave Conference}, cris = {https://cris.fau.de/converis/publicweb/publication/203101192}, year = {2018}, month = {11}, day = {06}, eventdate = {2018-11-06/2018-11-09}, faupublication = {yes}, note = {unpublished}, peerreviewed = {automatic}, title = {Support Vector Machine-Based Instantaneous Presence Detection for Continuous Wave Radar Systems}, venue = {Kyoto}, }
  • F. Michler, B. Scheiner, F. Lurz, R. Weigel, and A. Koelpin, "A Planar 24 GHz Switched-Beam Antenna Based on PIN Diodes for Remote Sensing Applications" in 2018 Asia-Pacific Microwave Conference, Kyoto, Japan, 2018 (to be published). [Bibtex]
    @inproceedings{michler2018a,
    abstract = {This paper presents a planar switched-beam antenna for remote sensing applications at 24 GHz. The antenna consists of 9x8 radiating patches, arranged as nine linear arrays that are connected by phase shifters based on PIN diodes, which allow to quickly switch the main lobe between two symmetric states by using a small control current. The single array elements were designed and simulated in CST Microwave Studio and the array feed network including the phase shifters was analyzed using Keysight ADS. Measurements of all individual components and the final array antenna were taken to confirm the simulations and to prove the concept.
    }, author = {Michler, Fabian and Scheiner, Benedict and Lurz, Fabian and Weigel, Robert and Koelpin, Alexander}, language = {English}, booktitle = {2018 Asia-Pacific Microwave Conference}, cris = {https://cris.fau.de/converis/publicweb/publication/200392474}, year = {2018}, month = {11}, day = {06}, eventdate = {2018-11-06/2018-11-09}, faupublication = {yes}, note = {unpublished}, peerreviewed = {unknown}, title = {A Planar 24 GHz Switched-Beam Antenna Based on PIN Diodes for Remote Sensing Applications}, type = {Konferenzschrift}, venue = {Kyoto, Japan}, }
  • S. Schellenberger, K. Shi, M. Mai, J. P. Wiedemann, T. Steigleder, B. Eskofier, R. Weigel, and A. Koelpin, "Detecting Respiratory Effort-Related Arousals in Polysomnographic Data Using Intelligent Pattern Recognition" in Computing in Cardiology, MECC Maastricht, Netherlands, 2018 (to be published). [Bibtex]
    @inproceedings{schellenberger2018,
    author = {Schellenberger, Sven and Shi, Kilin and Mai, Melanie and Wiedemann, Jan Philipp and Steigleder, Tobias and Eskofier, Björn and Weigel, Robert and Koelpin, Alexander},
    language = {English},
    booktitle = {Computing in Cardiology},
    cris = {https://cris.fau.de/converis/publicweb/publication/202377694},
    year = {2018},
    month = {11},
    day = {23},
    eventdate = {2018-09-23/2018-09-26},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Detecting Respiratory Effort-Related Arousals in Polysomnographic Data Using Intelligent Pattern Recognition},
    type = {Konferenzschrift},
    venue = {MECC Maastricht, Netherlands},
    }
  • F. Lurz, E. Halder, P. Dingler, G. Sept-Enzel, B. Scheiner, R. Weigel, and A. Koelpin, "Reader Concept for Wireless Resonant Surface Acoustic Wave Instrumentation based on Instantaneous Frequency Measurement" in SAW Sensor & Actuator Symposium, Dresden, 2018 (to be published). [Bibtex]
    @inproceedings{lurz2018e,
    author = {Lurz, Fabian and Halder, Ernst and Dingler, Peter and Sept-Enzel, Gerold and Scheiner, Benedict and Weigel, Robert and Koelpin, Alexander},
    booktitle = {SAW Sensor & Actuator Symposium},
    cris = {https://cris.fau.de/converis/publicweb/publication/201268528},
    year = {2018},
    month = {10},
    day = {01},
    eventdate = {2018-10-01/2018-10-02},
    faupublication = {yes},
    note = {unpublished},
    peerreviewed = {automatic},
    title = {Reader Concept for Wireless Resonant Surface Acoustic Wave Instrumentation based on Instantaneous Frequency Measurement},
    venue = {Dresden},
    }
  • V. Chauhan, M. Mayer, W. Ruile, K. Wagner, A. Mayer, R. Weigel, and A. Hagelauer, "A nonlinear FEM model to calculate third harmonics and intermodulation in TC-SAW devices" in IEEE, Kobe, Japan, 2018, pp. 1-4 (to be published). [Bibtex]
    @inproceedings{chauhan2018c,
    author = {Chauhan, Vikrant and Mayer, Markus and Ruile, Werner and Wagner, Karl and Mayer, Andreas and Weigel, Robert and Hagelauer, Amelie},
    language = {English},
    booktitle = {IEEE},
    cris = {https://cris.fau.de/converis/publicweb/publication/200125873},
    year = {2018},
    month = {10},
    day = {21},
    eventdate = {2018-10-21/2018-10-26},
    eventtitle = {IEEE International Ultrasonics Symposium},
    faupublication = {yes},
    note = {unpublished},
    pages = {1--4},
    peerreviewed = {automatic},
    title = {A nonlinear FEM model to calculate third harmonics and intermodulation in TC-SAW devices},
    type = {Journal Article},
    venue = {Kobe, Japan},
    }

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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  • F. Lurz, S. Lindner, A. Koelpin, G. Sept-Enzel, P. Dingler, and E. Halder, Elektrisches Messsystem zur Frequenzmessung und Erkennung von Störsignalen 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 = {DE 102016119562 B3},
    title = {Elektrisches Messsystem zur Frequenzmessung und Erkennung von Störsignalen 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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  • F. Michler, APMC 2018 Student Travel Grant, Asia-Pacific Microwave Conference, 2018. [Bibtex]
    @prize{michler_prize_2018b,
    author = {Michler, Fabian},
    booktitle = {Asia-Pacific Microwave Conference},
    cris = {michler_prize_2018b},
    year = {2018},
    month = {11},
    day = {06},
    title = {APMC 2018 Student Travel Grant},
    type = {20773-Kleiner Preis},
    }
  • K. Shi, GMDS-Förderpreis für Medizinische Informatik, Deutsche Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS), 2018. [Bibtex]
    @prize{shi_prize_2018a,
    author = {Shi, Kilin},
    booktitle = {Deutsche Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (GMDS)},
    cris = {shi_prize_2018a},
    year = {2018},
    month = {09},
    day = {05},
    title = {GMDS-Förderpreis für Medizinische Informatik},
    type = {20773-Kleiner Preis},
    }
  • R. Weigel, EuMA Distinguished Service Award 2018, European Microwave Association (EuMA), 2018. [Bibtex]
    @prize{weigel_prize_2018,
    abstract = {For contributions to the field of microwaves in Europe and to EuMA in an outstanding way.},
    author = {Weigel, Robert},
    booktitle = {European Microwave Association (EuMA)},
    cris = {weigel_prize_2018},
    year = {2018},
    month = {09},
    day = {25},
    title = {EuMA Distinguished Service Award 2018},
    type = {20773-Kleiner Preis},
    }

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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