Design of MM-Wave MIC Frequency Multipliers and Mixers using Simple Microstrip High-Pass Filters

General requirements on semiconductor device embedding impedances in mm-wave MIC frequency multipliers and converters have been discussed. Preferred filter types in different circuit paths have then been defined showing the utility of high-pass filters. Microstrip with short-circuited edge has been introduced as a high-pass filter realizable at mm-wave frequencies and successfully employed in a 20 - 40 GHz subharmonically pumped mixer.