SIMMWIC: the impact of SiGe

Front-End Architectures in Millimeter-Wave Systems: From Analogue to Digital Concepts

“…The complete mm-wave technique is merged into one chip if the active antenna is operated as a self-oscillating mixer. Round trip losses of 130 dB with typical output powers of 10 dBm at 61 GHz have been measured from SIMMWIC dipole chips [2]. For the use in coherent systems these chips have to be frequency stabilized by a PLL or a locking technique in order to improve the frequency stability and the phase noise behaviour.…”