A class AB 6th order log-domain filter in BiCMOS with 100-500 MHz tuning range. - Klaus Schmalz; Mykhaylo A. Teplechuk; John I. Sewell (ECCTD, 2005)

60 GHz SiGe-BiCMOS Radio for OFDM Transmission. - Eckhard Grass; Frank Herzel; Maxim Piz; Klaus Schmalz; Yaoming Sun; Srdjan Glisic; Milos Krstic; Klaus Tittelbach-Helmrich; Marcus Ehrig; Wolfgang Winkler; Christoph Scheytt; Rolf Kraemer (ISCAS, 2007)

60GHz OFDM hardware demonstrators in SiGe BiCMOS: State-of-the-art and future development. - Chang-Soon Choi; Eckhard Grass; Frank Herzel; Maxim Piz; Klaus Schmalz; Yaoming Sun; Srdjan Glisic; Milos Krstic; Klaus Tittelbach-Helmrich; Marcus Ehrig; Wolfgang Winkler; Rolf Kraemer; et al. (PIMRC, 2008)

122 GHz low-noise-amplifier in sige technology. - Wolfgang Winkler; Wojciech Debski; Bernd Heinemann; Falk Korndörfer; Holger Rücker; Klaus Schmalz; Christoph Scheytt; Bernd Tillack (ESSCIRC, 2009)

Design of a complementary folded-cascode operational amplifier. - Björn Lipka; Ulrich Kleine; Christoph Scheytt; Klaus Schmalz (SoCC, 2009)

A Subharmonic Receiver in SiGe Technology for 122 GHz Sensor Applications. - Klaus Schmalz; Wolfgang Winkler; Johannes Borngräber; Wojciech Debski; Bernd Heinemann; Christoph Scheytt (IEEE J. Solid State Circuits, 2010)

Contactless characterization of yeast cell cultivation at 7 GHz and 240 GHz. - Jan Wessel; Klaus Schmalz; Brian P. Cahill; Gunter Gastrock; Chafik Meliani (RWS, 2013)

Gas spectroscopy with 245 GHz circuits in SiGe BiCMOS and Frac-N PLL for frequency ramps. - Klaus Schmalz; Johannes Borngräber; Selahattin Berk Yilmaz; Nick Rothbart; Dietmar Kissinger; Heinz-Wilhelm Hübers (IEEE SENSORS, 2016)

Towards breath gas detection with a 245 GHz gas sensor based on SiGe BiCMOS technology. - Nick Rothbart; Klaus Schmalz; Johannes Borngräber; Selahattin Berk Yilmaz; Dietmar Kissinger; Heinz-Wilhelm Hübers (IEEE SENSORS, 2017)

Contactless Investigation of Dielectric Samples with a High-Q Millimeter-Wave Sensor. - Jan Wessel; Klaus Schmalz; Farabi Ibne Jamal; Dietmar Kissinger (EMBC, 2018)

Sensitive permittivity detector for dielectric samples at 120 GHz. - Jan Wessel; Klaus Schmalz; Johann-Christoph Scheytt; Dietmar Kissinger (RWS, 2018)

Wideband 240-GHz Transmitter and Receiver in BiCMOS Technology With 25-Gbit/s Data Rate. - Mohamed Hussein Eissa; Andrea Malignaggi; Ruoyu Wang 009; Mohamed Elkhouly; Klaus Schmalz; Ahmet Cagri Ulusoy; Dietmar Kissinger (IEEE J. Solid State Circuits, 2018)

Analysis of Human Breath by Millimeter-Wave/Terahertz Spectroscopy. - Nick Rothbart; Olaf Holz; Rembert Koczulla; Klaus Schmalz; Heinz-Wilhelm Hübers (Sensors, 2019)

Dual-Band Transmitter and Receiver With Bowtie-Antenna in 0.13 μm SiGe BiCMOS for Gas Spectroscopy at 222 - 270 GHz. - Klaus Schmalz; Nick Rothbart; Alexandra Glück; Mohamed Hussein Eissa; Thomas Mausolf; Esref Turkmen; Selahattin Berk Yilmaz; Heinz-Wilhelm Hübers (IEEE Access, 2021)