A 30 GHz Monolithic Single Balanced Mixer with Integrated Dipole Receiving Element

Abstract

A 30 GHz monolithic low noise balanced mixer has been developed using an integrated 'bow tie' antenna/WG transition and low parasitic Mott diodes. The diodes and mixer circuit were developed on General Electric grown MBE material and were fabricated using a plated air bridge technology. Measurements on the diode at DC and RF showed that the zero bias junction capacitance was 0.025 pF and the series resistance was 10 ohms. A conversion loss of 6 dB was measured at 30 GHz with a 1 GHz IF.