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)