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  • T. Reißland, B. Lenhart, J. Lichtblau, M. Sporer, A. Koelpin, and R. Weigel, "Evaluation of ISAR-based autofocus methods for estimation of true-speed-over-ground using a 24 GHz FMCW-Radar" in Asia-Pacific Microwave Conference, Kyoto, Japan, 2019 (to be published). [Bibtex]
    @inproceedings{reissland2018a,
    abstract = {This paper presents a novel approach for the determination of True-Speed-Over-Ground for trains. The approach utilizes the inverse synthetic aperture radar (ISAR) technique. Several focus metrics are evaluated and tested. The tests were carried out in an laboratory environment. The results are compared to an alternative correlation-based approach.},
    author = {Reißland, Torsten and Lenhart, Björn and Lichtblau, Johann and Sporer, Michael and Koelpin, Alexander and Weigel, Robert},
    language = {English},
    booktitle = {Asia-Pacific Microwave Conference},
    cris = {https://cris.fau.de/converis/publicweb/publication/203791311},
    year = {2019},
    month = {11},
    day = {06},
    eventdate = {2018-11-06/2018-11-09},
    faupublication = {yes},
    keywords = {focusing; measurement systems; synthetic aperture radar; velocity measurement},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Evaluation of ISAR-based autofocus methods for estimation of true-speed-over-ground using a 24 GHz FMCW-Radar},
    type = {Konferenzschrift},
    venue = {Kyoto, Japan},
    }
  • L. Grebenstein, J. Kirchner, R. Stavracakis Peixoto, W. Zimmermann, W. Wicke, A. Ahmadzadeh, V. Jamali Kooshkghazi, G. Fischer, R. Weigel, A. Burkovski, and R. Schober, "Biological Optical-to-Chemical Signal Conversion Interface: A Small-scale Modulator for Molecular Communications" in 5th ACM International Conference on Nanoscale Computing and Communication 2018, Reykjavik, Iceland, 2019 (to be published). [DOI] [Bibtex]
    @inproceedings{grebenstein2018,
    abstract = {Although many exciting applications of molecular communication (MC) systems are envisioned to be at microscale, the available MC testbeds reported in the literature so far are mostly at macroscale. This may partially be due to the fact that controlling an MC system at microscale is quite challenging. To link the macroworld to the microworld, we propose a biological signal conversion interface that can also be seen as a microscale modulator. This interface translates an optical signal, which can be easily controlled using a light-emitting diode (LED), into a chemical signal by changing the pH of the environment. The modulator is realized using Escherichia coli bacteria that express the light-driven proton pump gloeorhodopsin from Gloeobacter violaceus and, upon inducing external light stimuli, can locally change their surrounding pH level by exporting protons into the environment. Based on measurement data from a testbed, we develop an analytical model for the induced chemical signal as a function of the applied optical signal. Finally, using a pH sensor as detector, we show for an example scenario that the proposed setup is able to successfully convert an optical signal representing a sequence of binary symbols into a chemical signal with a bit rate of 1 bit/min.},
    author = {Grebenstein, Laura and Kirchner, Jens and Stavracakis Peixoto, Renata and Zimmermann, Wiebke and Wicke, Wayan and Ahmadzadeh, Arman and Jamali Kooshkghazi, Vahid and Fischer, Georg and Weigel, Robert and Burkovski, Andreas and Schober, Robert},
    language = {English},
    booktitle = {5th ACM International Conference on Nanoscale Computing and Communication 2018},
    cris = {https://cris.fau.de/converis/publicweb/publication/203247813},
    year = {2019},
    month = {09},
    day = {05},
    doi = {10.1145/3233188.3233203},
    eventdate = {2018-09-05/2018-09-07},
    faupublication = {yes},
    keywords = {Molecular communication; bacteriorhodopsi},
    note = {unpublished},
    peerreviewed = {Yes},
    title = {Biological Optical-to-Chemical Signal Conversion Interface: A Small-scale Modulator for Molecular Communications},
    type = {Konferenzschrift},
    venue = {Reykjavik, Iceland},
    }
  • H. Shinoda, D. Anzai, J. Kirchner, G. Fischer, and J. Wang, "A Study on Nonlinear Effect of Low-Frequency Modulated Radio Signals on Stimulus Response", IEICE Transactions on Communications, 2019. [Bibtex]
    @article{shinoda2019,
    abstract = {Stimulus response caused by low-frequency electromagnetic exposure can be used to realize effective medical treatments. However, it is well known that the membrane potential of nerve cells exhibits nonlinearity, particularly in the case of modulated signals, it is important to analyze the nonlinear stimulation effect based on a nerve cell model. This paper adopts the Frankenhaeuser–Huxley (FH) model as the nerve cell model, and evaluates the stimulus response based on the FH model when nerve cells are exposed to low-frequency modulated radio signals such as On-Off Keying (OOK) modulation. This paper investigated the nonlinear effect of the stimulus intensity from the viewpoint of the spike frequency with different modulation parameter values including the induced amplitude and duty cycle. It was confirmed that action potential (AP) rate was higher with OOK-type radio signals than with unmodulated signals. 
    }, author = {Shinoda, Hiroki and Anzai, Daisuke and Kirchner, Jens and Fischer, Georg and Wang, Jianqing}, cris = {https://cris.fau.de/converis/publicweb/publication/208638084}, year = {2019}, month = {06}, day = {30}, faupublication = {yes}, issn = {0916-8516}, journaltitle = {IEICE Transactions on Communications}, keywords = {Low-frequency stimulation; Frankenhaeuser-Huxley model; Nonlinear Response; On-Off keying modulation}, peerreviewed = {Yes}, shortjournal = {IEICE T COMMUN}, title = {A Study on Nonlinear Effect of Low-Frequency Modulated Radio Signals on Stimulus Response}, type = {Article in Journal}, }
  • J. Rimmelspacher, R. Weigel, A. Hagelauer, and V. Issakov, "LC Tank Differential Inductor-Coupled Dual-Core 60 GHz Push-Push VCO in 45 nm RF-SOI CMOS Technology" in Radio & Wireless Week (RWW): Silicon Monolithic Inegrated Circuits in RF Systems (SiRF), Orlando, FL, USA, 2019 (to be published). [Bibtex]
    @inproceedings{rimmelspacher2019,
    abstract = {This paper presents a 60 GHz dual-core push-push VCO in a 45 nm partially depleted (PD) RF Silicon-on-Insulator (SOI) CMOS technology. The cores are coupled inductively via differential inductors. The best measured phase noise at 1 MHz offset from a 63 GHz carrier is −94.4 dBc/Hz. The wideband continuous frequency-tuning-range (FTR) is 16 %. The DC power dissipation is 76 mW including fundamental 30 GHz and second harmonic (H2) 60 GHz output buffers at 1 V power supply voltage. The measurement results of a reference single-core VCO design proves the relative phase noise improvement of the implemented core-coupling technique. The chip area excluding pads is 0.09 mm2.
    }, author = {Rimmelspacher, Johannes and Weigel, Robert and Hagelauer, Amelie and Issakov, Vadim}, language = {English}, booktitle = {Radio & Wireless Week (RWW): Silicon Monolithic Inegrated Circuits in RF Systems (SiRF)}, cris = {https://cris.fau.de/converis/publicweb/publication/203768203}, year = {2019}, month = {04}, day = {20}, eventdate = {2019-01-20/2019-01-23}, faupublication = {yes}, keywords = {millimeter-wave VCO,wideband,silicon-on-insulator,CMOS technology,System-on-Chip}, note = {unpublished}, peerreviewed = {unknown}, title = {LC Tank Differential Inductor-Coupled Dual-Core 60 GHz Push-Push VCO in 45 nm RF-SOI CMOS Technology}, type = {Konferenzschrift}, venue = {Orlando, FL, USA}, }
  • L. Grebenstein, J. Kirchner, R. Stavracakis Peixoto, W. Zimmermann, F. Irnstorfer, W. Wicke, A. Ahmadzadeh, V. Jamali Kooshkghazi, G. Fischer, R. Weigel, A. Burkovski, and R. Schober, "Biological Optical-to-Chemical Signal Conversion Interface: A Small-scale Modulator for Molecular Communications", IEEE Transactions on Nanobioscience, 2019. [DOI] [Bibtex]
    @article{grebenstein2019,
    abstract = {Although many exciting applications of molecular communication (MC) systems are envisioned to be at microscale, the MC testbeds reported in the literature so far are mostly at macroscale. This may partially be due to the fact that controlling an MC system at microscale is challenging. To link the macroworld to the microworld, we propose and demonstrate a biological signal conversion interface that can also be seen
    as a microscale modulator. In particular, the proposed interface transduces an optical signal, which is controlled using a lightemitting diode (LED), into a chemical signal by changing the pH of the environment. The modulator is realized using Escherichia coli bacteria as microscale entity expressing the light-driven
    proton pump gloeorhodopsin from Gloeobacter violaceus. Upon inducing external light stimuli, these bacteria locally change their surrounding pH level by exporting protons into the environment. To verify the effectiveness of the proposed optical-to-chemical signal converter, we analyze the pH signal measured by a
    pH sensor, which serves as receiver. We develop an analytical parametric model for the induced chemical signal as a function of the applied optical signal. Using this model, we derive a trainingbased channel estimator which estimates the parameters of the proposed model to fit the measurement data based on a least square error approach. We further derive the optimal maximum likelihood detector and a suboptimal low-complexity detector to recover the transmitted data from the measured received signal. It is shown that the proposed parametric model is in good agreement with the measurement data. Moreover, for an example scenario, we show that the proposed setup is able to successfully convert an optical signal representing a sequence of binary symbols into a chemical signal with a bit rate of 1 bit/min and recover the transmitted data from the chemical signal using the proposed estimation and detection schemes. The proposed modulator may form the basis for future MC testbeds and applications at microscale.
    }, author = {Grebenstein, Laura and Kirchner, Jens and Stavracakis Peixoto, Renata and Zimmermann, Wiebke and Irnstorfer, Florian and Wicke, Wayan and Ahmadzadeh, Arman and Jamali Kooshkghazi, Vahid and Fischer, Georg and Weigel, Robert and Burkovski, Andreas and Schober, Robert}, cris = {https://cris.fau.de/converis/publicweb/publication/205157325}, year = {2019}, month = {04}, day = {15}, doi = {10.1109/TNB.2018.2870910}, faupublication = {yes}, issn = {1536-1241}, journaltitle = {IEEE Transactions on Nanobioscience}, keywords = {Diffusive molecular communications; experimental testbed; statistical modeling; E. coli bacteria; light-driven proton pump}, peerreviewed = {Yes}, shortjournal = {IEEE T NANOBIOSCI}, title = {Biological Optical-to-Chemical Signal Conversion Interface: A Small-scale Modulator for Molecular Communications}, type = {Article in Journal}, }
  • D. Schuklin, J. Röber, M. Stadelmayer, T. Mai, R. Weigel, and A. Hagelauer, "Highly Integrated Low Power Photomultiplier Readout ASIC Comprising Fast ADC to Be Used in the Antarctic Ice" in 2019 IEEE 19th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF), Orlando, Florida, USA, 2019. [Bibtex]
    @inproceedings{schuklin2019,
    abstract = {After the successful launch of IceCube, the work is currently concentrated the next generation neutrino observatory at South Pole, IceCube Gen2. The neutrino detection and post processing accuracy mostly relies on used electronic hardware. The proposed highly integrated, low power photomultiplier readout ASIC is designed for function in low temperatures of Antarctic. The microchip comprises an input pre-amplifier, a clock generator and an ADC with encoder logic featuring sampling rate of 500MHz, 6bit output accuracy with a smart extension of input related resolution up to 8bit in the area of interest. It achieves the same accuracy like a standard 8bit ADC architecture but with significantly less hardware overhead and power dissipation.
    }, author = {Schuklin, Dennis and Röber, Jürgen and Stadelmayer, Markus and Mai, Timo and Weigel, Robert and Hagelauer, Amelie}, language = {English}, booktitle = {2019 IEEE 19th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF)}, cris = {https://cris.fau.de/converis/publicweb/publication/208580332}, year = {2019}, month = {02}, day = {20}, eventdate = {2019-01-20/2019-01-23}, faupublication = {yes}, peerreviewed = {unknown}, title = {Highly Integrated Low Power Photomultiplier Readout ASIC Comprising Fast ADC to Be Used in the Antarctic Ice}, type = {Konferenzschrift}, venue = {Orlando, Florida, USA}, }
  • R. Ciocoveanu, R. Weigel, A. Hagelauer, and V. Issakov, "A 60 GHz 30.5% PAE Differential Stacked PA with Second Harmonic Control in 45 nm PD-SOI CMOS" in IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, Orlando, FL, USA, 2019 (to be published). [Bibtex]
    @inproceedings{ciocoveanu2019,
    abstract = {This paper presents a 60GHz highly efficient single-stage differential stacked Class AB power amplifier (PA) with second harmonic control. The circuit has been realized in a 45 nm PD-SOI CMOS technology. Measurement results show that the power amplifier achieves a maximum output power (Pmax) of 15.3dBm with a competitive maximum power-added efficiency (PAEmax) of 30.5% at 60 GHz. The output-referred 1-dB compression point (OP1dB) is 9.5 dBm. Furthermore, the circuit draws 40mA from a 1.8V supply and the chip core size is 0.36mm x 0.35 mm.},
    author = {Ciocoveanu, Radu and Weigel, Robert and Hagelauer, Amelie and Issakov, Vadim},
    language = {English},
    booktitle = {IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems},
    cris = {https://cris.fau.de/converis/publicweb/publication/204681005},
    year = {2019},
    month = {01},
    day = {20},
    eventdate = {2019-01-20/2019-01-23},
    faupublication = {yes},
    keywords = {Power Amplifier,High-Power,High-Efficiency,PD-SOI.},
    note = {unpublished},
    peerreviewed = {unknown},
    title = {A 60 GHz 30.5% PAE Differential Stacked PA with Second Harmonic Control in 45 nm PD-SOI CMOS},
    type = {Konferenzschrift},
    venue = {Orlando, FL, USA},
    }

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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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  • M. Frank, Förderung einer Kongressreise (RWS2019), Deutscher Akademischer Austauschdienst, 2019. [Bibtex]
    @prize{frank_prize_2019,
    author = {Frank, Martin},
    booktitle = {Deutscher Akademischer Austauschdienst},
    cris = {frank_prize_2019},
    year = {2019},
    title = {Förderung einer Kongressreise (RWS2019)},
    type = {20773-Kleiner Preis},
    }
  • 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},
    }
  • R. Weigel, ITG-Fellow, Informationstechnischen Gesellschaft (ITG) im VDE, 2018. [Bibtex]
    @prize{weigel_prize_2018b,
    abstract = {Die ITG verleiht den ITG-Fellow für hervorragende wissenschaftliche oder technische Leistungen auf dem Gebiet der Informationstechnik.},
    author = {Weigel, Robert},
    booktitle = {Informationstechnischen Gesellschaft (ITG) im VDE},
    cris = {weigel_prize_2018b},
    year = {2018},
    month = {11},
    day = {05},
    title = {ITG-Fellow},
    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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