Channelized Receiver Covering 26 to 60 GHz with Planar Integrated-Circuit Components

A nine-channel downconverter covering 26 to 60 GHz is described. The system includes reproducible hybrid-coupled multiplexers, balanced integrated circuit (IC) mixers, built-in-test equipment, and LO's including a cavity-stabilized, lumped-element model. The system is the first of its kind to extensively utilize low-cost, high-Q, millimeter- wave IC's.