Books

  • R. Sommer, D. Krauße, E. Schäfer, and E. Hennig, “Application of Symbolic Circuit Analysis for Failure Detection and Optimization of Industrial Integrated Circuits,” in Design of Analog Circuits through Symbolic Analysis, M. Fakhfakh, E. Tlelo-Cuautle, and F. V. Fernández, Eds., Bentham Science Publishers, 2012, ch. 17.

Invited Talks

  • E. Schäfer, “Gradientenbasierte Eigenwertoptimierung zur Frequenzgangskompensation linearer hochperformanter Analogschaltungen,” presented at Department of Mathematics, Faculty of Science, Friedrich-Alexander University Erlangen-Nuremberg, Jun. 2011.

Journals

  • D. Dupleich, E. Schäfer, G. Del Galdo, and R. S. Thomä, “Influence of System Aspects in Propagation Based Evaluation of Beam-forming at mm-Waves,” to be published in IET Microwaves, Antennas & Propagation (IET-MAP), 2019.
  • J. Tan, M. Sathyamurthy, A. Rolapp, J. Gamez, E. Hennig, E. Schäfer, and R. Sommer, “A Fully Passive RFID Temperature Sensor SoC with an Accuracy of ±0.4°C (3σ) from 0°C to 125°C,” in IEEE Journal of Radio Frequency Identification (JRFID)vol. 3, no. 1, pp. 35-45, Mar. 2019.
  • J. Klaus, E. Schäfer, R. Paris, A. Frank, and R. Sommer, “A contribution towards model-based design of application-specific MEMS,” in Integration, the VLSI Journal, vol. 58, pp. 454-462, 2017.
  • S. Irteza, E. Schäfer, R. Stephan, A. Hornbostel, and M. A. Hein, “Compact Antenna Array Receiver for Robust Satellite Navigation Systems,” in International Journal of Microwave and Wireless Technologies, vol. 7, no. 6, pp. 735-745, 2015.
  • E. Hennig, D. Krauße, E. Schäfer, R. Sommer, C. Trunk, and H. Winkler, “Frequency compensation for a class of DAE’s arising in electrical circuits,” in Proceedings in Applied Mathematics and Mechanics (PAMM), vol. 11, no. 1, pp. 837-838, 2011.

Conferences

  • A. Gatzastras, D. Wrana, T. Wolfer, G. Gläser, B. Saft, E. Schäfer, and E. Hennig, “Design of Quasi-synchronous Finite State Machines Using a Local On-demand Clocking Approach,” in 16. GMM/ITG-Fachtagung ANALOG, Munich, Germany, Sep. 2018.
  • D. Dupleich, E. Schäfer, G. Del Galdo, and R. S. Thomä, “Influence of System Aspects in Propagation Based Evaluation of Beam-forming at mm-Waves,” in 12th European Conference on Antennas and Propagation (EuCAP), London, UK, Apr. 2018.
  • E. Schäfer, C. Steinmetz, R. Zetik, J. König, D. Dupleich, G. Del Galdo, and R. S. Thomä, “Interference Mitigation in mm-Wave Backhaul Networks with Limited Channel-State Information,” in IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), Tel Aviv, Isreal, Nov. 2017.
  • N. Gutzeit, A. Schulz, T. Welker, C. Wagner, E. Schäfer, and J. Müller, “High-precision picosecond laser structuring on LTCC for silicon chip assembly with high electrical contact density,” in 21st European Microelectronics and Packaging Conference (EMPC), Warsaw, Poland, Sep. 2017.
  • M. Ibraheam, B. Bieske, K. Blau, E. Schäfer, A. Jäger, S. Irteza, R. Stephan, and M. A. Hein, “Feasibility of Dual-polarized Antenna Arrays for GNSS Receivers at Low Elevations,” in 11th European Conference on Antennas and Propagation (EuCAP), Paris, France, Mar. 2017.
  • B. Saft, E. Schäfer, A. Rolapp, and E. Hennig, “An Ultra-Low Power Capacitance Extrema and Ratio Detector for Electrostatic Energy Harvesters,” in 41th European Solid-State Circuits Conference (ESSCIRC), Graz, Austria, Sep. 2015.
  • E. Schäfer, S. Irteza, A. Jäger, B. Bieske, A. Richter, M. A. Khan, M. Sathyamurthy, S. Kerkmann, A. Rolapp, E. Hennig, and R. Sommer, “A Four-Channel GNSS Front-End IC for a Compact Interference- and Jamming-Robust Multi-Antenna Galileo/GPS Receiver,” in 7th ESA Workshop on Satellite Navigation Technologies, Noordwijk, The Netherlands, Dec. 2014.
  • B. Saft, E. Schäfer, A. Jäger, A. Rolapp, and E. Hennig, “An Improved Low-Power CMOS Thyristor-Based Micro-to-Millisecond Delay Element,” in 40th European Solid-State Circuits Conference (ESSCIRC), Venice, Italy, Sep. 2014.
  • B. Saft, E. Schäfer, A. Jäger, S. Hampl, B. Leistritz, and E. Hennig, “Eine Systemarchitektur für ein integriertes elektrostatisches MEMS-Energy-Harvesting-Modul,” in 14. GMM/ITG-Fachtagung ANALOG, Hannover, Germany, Sep. 2014.
  • S. Irteza, E. Schäfer, M. Ibraheam, B. Bieske, R. Stephan, and M. A. Hein, “Beamforming in Compact Antenna Arrays for Robust Satellite Navigation,” in IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), Palm Beach, Aruba, Aug. 2014.
  • S. Irteza, E. Schäfer, M. Sgammini, R. Stephan, and M. A. Hein,  “Impact of Polarization Impurity on Compact Antenna Array Receiver for Satellite Navigation Systems,” in 43rd European Microwave Conference (EuMC), Nuremberg, Germany, Oct. 2013.
  • S. Irteza, E. Schäfer, M. Sgammini, R. Stephan, and M. A. Hein,  “Four-Element Compact Planar Antenna Array with Integrated Decoupling and Matching Network for Robust Satellite Navigation Systems,” in 6th European Conference on Antennas and Propagation (EuCAP), Gothenburg, Sweden, Apr. 2013.
  • S. Irteza, E. Schäfer, C. Volmer, M. Sgammini, R. Stephan, E. Hennig, and M. A. Hein,  “Noise Characterization of a Multi-Channel Receiver Using a Small Antenna Array with Full Diversity for Robust Satellite Navigation,” in IEEE International Conference on Wireless Information Technology and Systems (ICWITS), Maui (HI), USA, Nov. 2012.
  • A. Dreher, N. Basta, S. Caizzone, G. Kappen, M. Sgammini, M. Meurer, S. Irteza, R. Stephan, M. A. Hein, E. Schäfer, M. A. Khan, A. Richter, B. Bieske, L. Kurz, and T. G. Noll, “Compact Adaptive Multi-antenna Navigation Receiver,” in ION GNSS 2012, Nashville (TN), USA, Sep. 2012.
  • N. Basta, A. Dreher, S. Caizzone, M. Sgammini, F. Antreich, G. Kappen, S. Irteza, R. Stephan, M. A. Hein, E. Schäfer, A. Richter, M. A. Khan, L. Kurz, and T. G. Noll, “System concept of a compact multi-antenna GNSS receiver,” in 7th German Microwave Conference (GeMiC), Ilmenau, Germany, Mar. 2012.
  • R. Sommer, D. Krauße, E. Hennig, E. Schäfer, and C. Sporrer, “A new method for automated generation of compensation networks – The EDA Designer Finger,” in Design, Automation, and Test in Europe (DATE), Grenoble, France, Mar .2011, pp. 1666-1671.
  • D. Krauße, E. Schäfer, R. Sommer, E. Hennig, and M. Sylvester, “Hierarchische Entwurfsmethodik mit automatischer Bottom-Up-Topologiemodifikation und spezifikationsgetriebener Dimensionierung,” in 11. GMM/ITG-Fachtagung ANALOG, Erfurt, Germany, Mar. 2010, pp. 163-170.
  • E. Schäfer, D. Krauße, R. Sommer, and E. Hennig, “Gradientenbasierte Eigenwertoptimierung zur Frequenzgangskompensation linearer Analogschaltungen,” in 11. GMM/ITG-Fachtagung ANALOG, Erfurt, Germany, Mar. 2010, pp. 115-122.
  • D. Krauße, J. Nowak, E. Schäfer, R. Sommer, and E. Hennig, “Frequency Compensation by Automated Topology Modification Using Mixed Analytical and Numerical Methods for Design of Fast TIA for High-speed Optoelectronic Applications,” in 10th International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD), Erfurt, Germany, Oct. 2008, pp. 118-126.
  • D. Krauße, E. Schäfer, and R. Sommer, “Kompensation schneller Transimpedanzverstärker durch automatische Schaltungsstrukturmodifikation basierend auf symbolischer Schaltungsanalyse,” in 10. GMM/ITG-Fachtagung ANALOG, Siegen, Germany, Apr. 2008, pp. 113-118.

Patents

  • B. Saft, E. Schäfer, and A. Jäger, “Elektronische Verzögerungsschaltung in CMOS Technologie,” DE102013114046, Jun. 2015.
  • B. Saft and E. Schäfer, “Verfahren und Schaltung zum Bestimmen des Zeitpunkts eines Extremums einer sich zeitlich verändernden Kapazität,” DE102013113378, Jun. 2015.
  • E. Hennig, D. Krauße, E. Schäfer, and R. Sommer, “Verfahren zur automatischen Topologiemodifikation beim Entwurf von analogen integrierten Schaltungen,” DE102011113421, Mar. 2012.

 Others

  • B. Saft, E. Schäfer, A. Jäger, A. Rolapp, and E. Hennig, “Adaptiver Frontend-ASIC für elektrostatische Energy-Harvester,” in 8. GMM-Workshop Energieautarke Sensorik, Renningen, Germany, Feb. 2016.
  • B. Saft, E. Schäfer, A. Jäger, A. Rolapp, and E. Hennig, “Integrierte Frontend-Schaltung für einen elektrostatischen Energy-Harvester,” in Workshop Analogschaltungen 2015, Darmstadt, Germany, Mar. 2015.
  • R. Sommer, E. Schäfer, D. Krauße, J. Nowak, and M. Meister. (2013, Mar. 27). Designerfinger – Synthese von Kompensationsnetzwerken für schnelle rückgekoppelte Verstärkerschaltungen [Online]. Available: http://www.elektroniknet.de/halbleiter/analog-mixed-signal/artikel/96199/
  • N. Basta, S. Irteza, E. Schäfer, L. Kurz, et al., “System Concept for a Compact Multi-Antenna GNSS Receiver,” in 2nd COST VISTA Workshop, Istanbul, Turkey, Sep. 2012.
  • E. Schäfer, J. Steinwandt, H. Bayer, A. Krauß, R. Stephan, and M. A. Hein, “Slotted-waveguide antennas for mobile satellite communications at 20 GHz,” in 17th International Student Seminar “Microwave and Optical Applications of Novel Phenomena and Technologies” (ISS-17), Ilmenau, Germany, Jun. 2010, pp. 39-50.
  • D. Krauße, E. Schäfer, J. Nowak, R. Sommer, and E. Hennig, “Analysis of frequency-optimized transimpedance amplifiers in XFAB 600nm BiCMOS technology,” in MunEDA User Group Meeting (MUGM), Munich, Germany, Nov. 2009.
  • R. Sommer, F. Neumann, S. Günther, D. Krauße, E. Schäfer, E. Hennig, and J. Nowak, “Frequency Compensation by Automated Topology Modification Using Mixed Analytical and Numerical Methods for Design of Fast TIA for High-speed Optoelectronic Applications,” in CDNLive! EMEA 2009, Munich, Germany, Mar. 2009.
  • D. Krauße, E. Schäfer, and R. Sommer, “Direkte Frequenzgangskompensation durch automatisierte Schaltungsstrukturmodifikation unter Anwendung gemischt analytisch/numerischer Verfahren zum Entwurf schneller Transimpedanzverstärker für HDTV-Anwendungen,” in Workshop Analogschaltungen 2008, Berlin, Germany, Mar. 2008.