Low Cost Microstrip Subharmonic Mixer in Millimeter Wave Band

Abstract

This paper describes the design and simulation of a millimeter fourth subharmonic mixer using an antiparallel diode pair for a down converter, which was specifically designed for low cost with minimal sacrifice in performance. The component is designed to operate at RF frequentcies of 92-96 GHz, IF frequency of 70 MHz. The microstrip subharmonic mixer with good recovery circuit and a novel RF filter has conversion loss of 12.8 dB-14 dB with 8 dbm LO power and shows significant improvement compared with previously reported microstrip fourth harmonic results.