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Ruggaber, Benjamin; Krüger, Udo; Schmidt, Franz
Ortsaufgelöste Messung der spektralen Strahldichte mit einer Multispektralkamera. - In: Tagungsband. - Darmstadt : Techn. Univ. Darmstadt, Inst. für Druckmaschinen und Druckverfahren [u.a.], (2012), S. 25-36

Irteza, Safwat; Schäfer, Eric; Volmer, Christian; Sgammini, Matteo; Stephan, Ralf; Hennig, Eckhard; Hein, Matthias A.
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), 2012 : 11 - 16 Nov. 2012, Grand Wailea Resort Hotel, Maui, Hawaii, USA.. - Piscataway, NJ : IEEE, ISBN 978-1-4673-0947-9, (2012), insges. 4 S.

http://dx.doi.org/10.1109/ICWITS.2012.6417676
Kaleem, Saqib; Humbla, Stefan; Rentsch, Sven; Trabert, Johannes; Stöpel, Dirk; Müller, Jens; Hein, Matthias A.
Microwave crossovers using cascaded couplers for switching applications. - In: IEEE International Conference on Wireless Information Technology and Systems (ICWITS), 2012 : 11 - 16 Nov. 2012, Grand Wailea Resort Hotel, Maui, Hawaii, USA.. - Piscataway, NJ : IEEE, ISBN 978-1-4673-0947-9, (2012), insges. 4 S.

http://dx.doi.org/10.1109/ICWITS.2012.6417695
Artemenko, Oleksandr; Simon, Tobias; Mitschele-Thiel, Andreas; Schulz, Dominik; Ta, Rheza Satria
Comparison of anchor selection algorithms for improvement of position estimation during the Wi-Fi localization process in disaster scenario. - In: IEEE 37th Conference on Local Computer Networks (LCN), 2012 : 22 - 25 Oct. 2012, Clearwater, Florida, USA ; main conference.. - Piscataway, NJ : IEEE, ISBN 978-1-4673-1564-7, (2012), S. 44-49

http://dx.doi.org/10.1109/LCN.2012.6423660
Hofherr, Matthias; Wetzstein, Olaf; Engert, Sonja; Ortlepp, Thomas; Berg, Benjamin; Ilin, Konstantin; Henrich, Dagmar; Stolz, Ronny; Töpfer, Hannes; Meyer, Hans-Georg
Orthogonal sequencing multiplexer for superconducting nanowire single-photon detectors with RSFQ electronics readout circuit. - In: Optics express : the international electronic journal of optics.. - Washington, DC : Soc., ISSN 1094-4087, Bd. 20 (2012), 27, S. 28683-28697

We propose an efficient multiplexing technique for superconducting nanowire single-photon detectors based on an orthogonal detector bias switching method enabling the extraction of the average count rate of a set of detectors by one readout line. We implemented a system prototype where the SNSPDs are connected to an integrated cryogenic readout and a pulse merger system based on rapid single flux quantum (RSFQ) electronics. We discuss the general scalability of this concept, analyze the environmental requirements which define the resolvability and the accuracy and demonstrate the feasibility of this approach with experimental results for a SNSPD array with four pixels.



http://dx.doi.org/10.1364/OE.20.028683
Hähnlein, Bernd; Händel, Benjamin; Pezoldt, Jörg; Töpfer, Hannes; Granzner, Ralf; Schwierz, Frank
Side-gate graphene field-effect transistors with high transconductance. - In: Applied physics letters. - Melville, NY : American Inst. of Physics, ISSN 1077-3118, Bd. 101 (2012), 9, S. 093504, insges. 3 S.

We have fabricated epitaxial side-gate graphene field-effect transistors (FETs) with high transconductance. A side-gate graphene FET with 5560 nm2 active channel dimensions and a lateral gate-channel separation of 95 nm showing a high transconductance of 590 mS/mm is presented. An estimation of the electrostatic gate-channel capacitance of epitaxial side-gate graphene FETs shows that it is in the same order as the electrostatic gate capacitance of common top-gate graphene MOSFETs justifying the high transconductances of our devices. The results of the present paper demonstrate the potential of the side-gate architecture for graphene transistors.



http://dx.doi.org/10.1063/1.4748112
Helbig, Marko;
UWB for medical microwave breast imaging. - In: Handbook of ultra-wideband short-range sensing. - Weinheim : Wiley-VCH-Verl., (2012), S. 726-744

Kosch, Olaf; Thiel, Florian; Schwarz, Ulrich; Scotto di Clemente, Francesco; Hein, Matthias; Seifert, Frank
UWB cardiovascular monitoring for enhanced magnetic resonance imaging. - In: Handbook of ultra-wideband short-range sensing. - Weinheim : Wiley-VCH-Verl., (2012), S. 714-726

Herrmann, Ralf; Bonitz, Frank
Non-destructive testing in civil engineering using m-sequence-based UWB sensors. - In: Handbook of ultra-wideband short-range sensing. - Weinheim : Wiley-VCH-Verl., (2012), S. 700-714

Zetik, Rudolf;
UWB localization. - In: Handbook of ultra-wideband short-range sensing. - Weinheim : Wiley-VCH-Verl., (2012), S. 772-788