DC-40 GHz MMIC switches

Abstract

DC to 40 GHz MMIC high-isolation ultra-fast switches (SPST) have been demonstrated. The switch uses a combination of series and shunt FET's. From DC to 40 GHz the MMIC switch exhibits less than 3 dB insertion loss and greater than 40 dB isolation. The switching time is less than 1 ns, including the driver. From DC to 26.5 GHz better than 50 dB isolation have been achieved and maximum isolation of up to 80 dB.