Millimeterwave frequency extension radar warning receiver

Abstract

This paper describes a ‘proof of concept’ millimeterwave Frequency Extension Receiver (F.X.R.) designed as an add-on to an existing microwave airborne system. The F.X.R. extends the frequency coverage from the existing microwave region to greater than 100 GHz using commutatively switched downconverters. A key feature of this receiver is the modular construction which allows it to be added on to many existing microwave receiver systems.