Mitarbeiter

M. Sc. Thomas Girg

Kontakt

  •  

Über Thomas Girg

Lebenslauf

  • WS 2007/08 - SS 2010 Bachelorstudium im Fach Elektronik, Elektro- und Informationstechnik an der FAU Erlangen-Nürnberg
  • WS 2010/11 - SS 2013 Masterstudium im Fach Elektronik, Elektro- und Informationstechnik an der FAU Erlangen-Nürnberg 
  • Okt.2013 - Jun.2018 wissenschaftlicher Mitarbeiter am Lehrstuhl für Technische Elektronik im Bereich RFIC

Arbeitsgebiete

Entwicklung neuartiger System- und Komponentenarchitekturen für zukünftige innovative Kommunikationssysteme zur Übertragung von 100 GBit/s

  • integrierte Mikrowellenschaltungen im Frequenzbereich von 60GHz bis 180GHz
  • Entwurf einer Senderarchitektur zur Übertragung von 100GBit/s
  • RF-DACs
  • Frequenzvervielfachung

Publikationen

2017

  • M. Dietz, T. Girg, A. Bauch, K. Aufinger, A. Hagelauer, D. Kissinger, and R. Weigel, "Broadband Multi-Octave Receiver from 1-32 GHz for Monolithic Integrated Vector Network Analyzers (VNA) in SiGe-Technology" in European Microwave Integrated Circuits Conference, Nuremberg, Germany, Germany, 2017, pp. 49-52. [DOI] [Bibtex]
    @inproceedings{dietz2017,
    author = {Dietz, Marco and Girg, Thomas and Bauch, Andreas and Aufinger, Klaus and Hagelauer, Amelie and Kissinger, Dietmar and Weigel, Robert},
    language = {English},
    booktitle = {European Microwave Integrated Circuits Conference},
    cris = {https://cris.fau.de/converis/publicweb/publication/109124884},
    year = {2017},
    month = {12},
    day = {08},
    doi = {10.23919/EUMIC.2017.8230657},
    eventdate = {2017-10-08/2017-10-13},
    eventtitle = {European Microwave Integrated Circuits Conference},
    faupublication = {yes},
    pages = {49--52},
    peerreviewed = {unknown},
    title = {Broadband Multi-Octave Receiver from 1-32 GHz for Monolithic Integrated Vector Network Analyzers (VNA) in SiGe-Technology},
    type = {Konferenzschrift},
    venue = {Nuremberg, Germany, Germany},
    }
  • C. Carlowitz, T. Girg, H. Ghaleb, and X. Du, "Efficient Ultra-High Speed Communication with Simultaneous Phase and Amplitude Regenerative Sampling (SPARS)", Frequenz, vol. 71, iss. 9-10, p. 449, 2017. [DOI] [Bibtex]
    @article{carlowitz2017,
    abstract = {For ultra-high speed communication systems at high center frequencies above 100 GHz, we propose a disruptive change in system architecture to address major issues regarding amplifier chains with a large number of amplifier stages. They cause a high noise figure and high power consumption when operating close to the frequency limits of the underlying semiconductor technologies. Instead of scaling a classic homodyne transceiver system, we employ repeated amplification in single-stage amplifiers through positive feedback as well as synthesizer-free self-mixing demodulation at the receiver to simplify the system architecture notably. Since the amplitude and phase information for the emerging oscillation is defined by the input signal and the oscillator is only turned on for a very short time, it can be left unstabilized and thus come without a PLL. As soon as gain is no longer the most prominent issue, relaxed requirements for all the other major components allow reconsidering their implementation concepts to achieve further improvements compared to classic systems. This paper provides the first comprehensive overview of all major design aspects that need to be addressed upon realizing a SPARS-based transceiver. At system level, we show how to achieve high data rates and a noise performance comparable to classic systems, backed by scaled demonstrator experiments. Regarding the transmitter, design considerations for efficient quadrature modulation are discussed. For the frontend components that replace PA and LNA amplifier chains, implementation techniques for regenerative sampling circuits based on super-regenerative oscillators are presented. Finally, an analog-to-digital converter with outstanding performance and complete interfaces both to the analog baseband as well as to the digital side completes the set of building blocks for efficient ultra-high speed communication.},
    author = {Carlowitz, Christian and Girg, Thomas and Ghaleb, Hatem and Du, Xuan-Quang},
    language = {English},
    cris = {https://cris.fau.de/converis/publicweb/publication/118207804},
    year = {2017},
    month = {09},
    doi = {10.1515/FREQ-2017-0163},
    faupublication = {yes},
    issn = {0016-1136},
    journaltitle = {Frequenz},
    keywords = {front-end circuits and systems; wireless RF components and systems; high-data-rate communications; superregenerative receivers},
    number = {9-10},
    pages = {449},
    peerreviewed = {Yes},
    shortjournal = {FREQUENZ},
    title = {Efficient Ultra-High Speed Communication with Simultaneous Phase and Amplitude Regenerative Sampling (SPARS)},
    volume = {71},
    }

2016

  • T. Girg, D. Schrüfer, M. Dietz, A. Hagelauer, D. Kissinger, and R. Weigel, "Low Complexity 60-GHz Receiver Architecture for Simultaneous Phase and Amplitude Regenerative Sampling Systems" in International Symposium on Integrated Circuits, Singapur, 2016, pp. 1-4. [DOI] [Bibtex]
    @inproceedings{girg2016a,
    abstract = {With increasing data rates in communication systems, the call for wideband transceiver solutions capable of processing complex modulation schemes is getting stronger. Unfortunately, this goes along with power hungry systems and more complex integrated circuits. A novel receiver architecture, which addresses these issues, is based on the simultaneous phase and amplitude regenerative sampling system. Its system exploits switched injection-locked oscillators and their capability to regenerate signals with a gain of over 40dB. This paper demonstrates an integrated solution for phase demodulation in such an architecture. The proposed concept uses the low complex but efficient self-mixing principle and consists mainly of double-balanced Gilbert mixers, amplifiers, a delay line and passive power dividers. The detection of the phase is achieved through self-mixing the regenerated signal with one path delayed by a symbol period. The architecture achieves 2 GBaud/s with 8 th order differential phase shift keying at a frequency of 60 GHz and is realized in a 130nm SiGe BiCMOS technology.},
    author = {Girg, Thomas and Schrüfer, Daniel and Dietz, Marco and Hagelauer, Amelie and Kissinger, Dietmar and Weigel, Robert},
    publisher = {IEEE},
    booktitle = {International Symposium on Integrated Circuits},
    cris = {https://cris.fau.de/converis/publicweb/publication/108101884},
    year = {2016},
    month = {12},
    day = {12},
    doi = {10.1109/ISICIR.2016.7829729},
    eventdate = {2016-12-12/2016-12-14},
    eventtitle = {The 15th International Symposium on Integrated Circuits},
    faupublication = {yes},
    keywords = {SiGe; BiCMOS; simultaneous phase and amplitude regenrative sampling; high data rate; communication; self-mixing},
    pages = {1--4},
    peerreviewed = {No},
    title = {Low Complexity 60-GHz Receiver Architecture for Simultaneous Phase and Amplitude Regenerative Sampling Systems},
    type = {Konferenzschrift},
    url = {http://ieeexplore.ieee.org/document/7829729/},
    venue = {Singapur},
    }
  • T. Girg, C. Beck, M. Dietz, A. Hagelauer, D. Kissinger, and R. Weigel, "A 180 GHz Frequency Multiplier in a 130 nm SiGe BiCMOS Technology" in 2016 IEEE 14th International NEWCAS Conference, Vancouver, 2016, pp. 1-4. [DOI] [Bibtex]
    @inproceedings{girg2016,
    abstract = {An integrated analog frequency multiplier for a novel high data rate communication system has been developed to multiply a 18 GHz input signal by ten to generate a 180 GHz output signal. With a first step the 18 GHz input signal is fed into a times five edge combiner, which generates an intermediate frequency of 90 GHz. Therefore five different phases with a delta of 72 degree are needed, that are provided by an active allpass filter chain. In a second step the 90 GHz intermediate frequency is given into a double-balanced Gilbert cell mixer. Here, frequency doubling is achieved by feeding the same signal into the LO and RF port of the mixer. Hence, the overall output frequency of 180 GHz results in 180 GHz with a simulated output power of -7 dBm. All simulations are done post-layout. The chip is implemented in a 130 nm BiCMOS technology with a chip area of 0.9 mm x 1 mm.},
    author = {Girg, Thomas and Beck, Christopher and Dietz, Marco and Hagelauer, Amelie and Kissinger, Dietmar and Weigel, Robert},
    publisher = {IEEE},
    booktitle = {2016 IEEE 14th International NEWCAS Conference},
    cris = {https://cris.fau.de/converis/publicweb/publication/108113324},
    year = {2016},
    month = {06},
    day = {26},
    doi = {10.1109/NEWCAS.2016.7604745},
    eventdate = {2016-06-26/2016-06-29},
    eventtitle = {2016 IEEE 14th International NEWCAS Conference},
    faupublication = {yes},
    keywords = {SiGe BiCMOS; high data rate communication; 180 GHz; simultaneous phase and amplitude regenerative sampling; transmitter; frequency multiplier},
    pages = {1--4},
    peerreviewed = {No},
    title = {A 180 GHz Frequency Multiplier in a 130 nm SiGe BiCMOS Technology},
    type = {Konferenzschrift},
    venue = {Vancouver},
    }

2015

  • D. Kissinger, T. Girg, C. Beck, I. Nasr, H. Forstner, M. Wojnowski, K. Pressel, and R. Weigel, "Integrated millimeter-wave transceiver concepts and technologies for wireless multi-Gbps communication" in IEEE MTT-S International Microwave Symposium, Phoenix, AZ, 2015, pp. 1-3. [DOI] [Bibtex]
    @inproceedings{kissinger2015a,
    author = {Kissinger, Dietmar and Girg, Thomas and Beck, Christopher and Nasr, Ismail and Forstner, Hans-Peter and Wojnowski, Maciej and Pressel, Klaus and Weigel, Robert},
    booktitle = {IEEE MTT-S International Microwave Symposium},
    cris = {https://cris.fau.de/converis/publicweb/publication/120737584},
    year = {2015},
    month = {05},
    doi = {10.1109/MWSYM.2015.7166712},
    faupublication = {yes},
    pages = {1--3},
    peerreviewed = {No},
    title = {Integrated millimeter-wave transceiver concepts and technologies for wireless multi-Gbps communication},
    type = {Konferenzschrift},
    venue = {Phoenix, AZ},
    }

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