RADIO FREQUENCY AND MICROWAVE PRODUCTS AND SUBSYSTEMS, NAMELY LOW NOISE AMPLIFIERS, REDUNDANT MICROWAVE LOW NOISE AMPLIFIERS, THERMOELECTRIC COOLED LOW NOISE AMPLIFIERS, FREQUENCY CONVERTERS, CRYOGENICALLY COOLED LOW NOISE AMPLIFIERS, MULTI-COUPLERS, DRIVER AMPLIFIERS, AMPLIFIERS FOR TRANSMITTERS, EMBEDDED-PROCESSOR CONTROLLERS, PIN LIMITERS, AND SWITCHES