A 20–40 GHz quasi-optical network analyzer

Summary form only given, as follows. A 20–40 GHz 2-port quasi-optical scalar network analyzer built in planar technology is presented. The network analyzer resulted in a dynamic range of greater than 30 dB and was successfully used to measure a frequency selective surface. The system was built with circuits and components for easy scaling to millimeter-wave frequencies which is the primary motivation for this work. The application areas for a millimeter-wave network analyzer include material characterization and art diagnostics.