A full waveguide band MMIC tripler for 75-110 GHz

Design and test data for a full waveguide band MMIC tripler using anti-parallel Schottky diodes are reported in this paper. The circuit outputs between -3.7 dBm and +2.0 dBm from 75 to 110 GHz. When tuned for power flatness, the output is between -4.6 dBm and -1.3 dBm across the band. The conversion efficiency is about 1.5% in both cases. To the authors' knowledge, this is the first reported MMIC frequency tripler to cover the entire W-band