A Highly Reconfigurable RF-DPLL Phase Modulator for Polar Transmitters in Cellular RFICs (2018) Buckel T, Tertinek S, Mayer T, Bauernfeind T, Wicpalek C, Springer A, Weigel R, Ussmueller T Journal article, Original article Analytical Waveguide Model Precisely Predicting Loss and Delay Including Surface Roughness (2018) Lomakin K, Gold G, Helmreich K Journal article X-Parameter Characterization of TC SAW Filters with Enhanced Dynamic Range (2017) Akstaller W, Musolff C, Weigel R, Hagelauer AM Journal article, Original article A System Concept for Online Calibration of Massive MIMO Transceiver Arrays for Communication and Localization (2017) Gröschel P, Zarei S, Carlowitz C, Lipka M, Sippel E, Ali A, Weigel R, et al. Journal article, Online publication Highly Integrated 4–32-GHz Two-Port Vector Network Analyzers for Instrumentation and Biomedical Applications (2017) Nehring J, Schütz M, Dietz M, Nasr I, Aufinger K, Weigel R, Kissinger D Journal article, Review article A Physical Surface Roughness Model and Its Applications (2017) Gold G, Helmreich K Journal article RF Frontends for Mobile Radio Terminal Applications (2016) Tag A, Hagelauer AM Journal article Highly Integrated 4-32-GHz Two-Port Vector Network Analyzers for Instrumentation and Biomedical Applications (2016) Nasr I, Nehring J, Schütz M, Dietz M, Nasr I, Aufinger K, Weigel R, Kissinger D Journal article Test Method for Contactless On-wafer MEMS Characterization and Production Monitoring (2016) Linz S, Oesterle F, Lindner S, Mann S, Weigel R, Kölpin A Journal article A Versatile 10–80-Gb/s PRBS-Based Broadband Transmitter With Arbitrary 20–60-GHz Spectrum Shifting (2016) Gharib A, Weigel R, Kissinger D Journal article