Design and Fabrication of Broadband Hybrid GaAs Schottky Diode Frequency Multipliers (2013) Hrobak M, Sterns M, Schramm M, Stein W, Schmidt LP Journal article A Millimeter-Wave Low-Power Active Backscatter Tag for FMCW Radar Systems (2013) Strobel A, Carlowitz C, Wolf R, Ellinger F, Vossiek M Journal article Device Characterization Techniques Based on Causal Relationships (2012) Wojnowski M, Sommer G, Weigel R Journal article Millimeter-Wave Technology for Automotive Radar Sensors in the 77 GHz Frequency Band (2012) Hasch J, Topak E, Schnabel R, Zwick T, Weigel R, Waldschmidt C Journal article A Novel Fully Electronic Active Real-Time Imager Based on a Planar Multistatic Sparse Array (2011) Ahmed SS, Schiessl A, Schmidt LP Journal article A Reconfigurable MIMO System for High-Precision FMCW Local Positioning (2011) Gierlich R, Hüttner J, Ziroff A, Weigel R, Huemer M Journal article Multifunctional Reference Cells for Multistandard RFID Transponders (2011) Heidrich J, Brenk D, Essel J, Heinrich M, Hofer G, Holweg G, Schwarzer S, et al. Journal article A Differential Pair based Direct Digital Synthesizer MMIC with 16.8 GHz Clock and 488 mW Power Consumption (2010) Lämmle B, Wagner C, Knapp H, Jäger H, Maurer L, Weigel R Journal article A 12-GHz High-Efficiency Tapered Traveling-Wave Power Amplifier With Novel Power Matched Cascode Gain Cells Using SiGe HBT Transistors (2009) Sewiolo B, Fischer G, Weigel R Journal article Reduced Size Frequency Agile Microwave Circuits Using Ferroelectric Thin-Film Varactors (2008) Lourandakis E, Schmidt M, Seitz S, Weigel R Journal article