1THz Monolithic Schottky Based Mixer and Tripler- Design and Characterization

A Schottky diode based 1THz harmonic mixer and tripler was designed, built and measured. The terahertz mixer and tripler was fabricated with a 5um thick GaAs monolithic Schottky technology. Compact passive filter and matching network was designed to reduce the loss of transmission route. At 300 K ambient temperature, the measured minimum double side band(DSB) noise temperature and conversion loss of 1THz subharmonic mixer was less than 5000 K and 13 dB. At self-develop available pump source, the measured maximum output power of 1THz monolithic tripler is over 50uW and the average output power from 960 to 1030 GHz was 35 uW. The accomplished 1 THz monolithic circuits validate the feasibility of the proposed design process and are worth using for reference for higher frequency solid-state schottky based circuit.