A Single Layer Planar K-Band Monopulse Radar Receiver

In this paper, a K-band monopulse comparator and dual six-port junctions are combined to create a portable planar monopulse receiver. The architecture utilizes the phase offset of the difference signals to reduce the number of necessary downconverters. The full design was implemented with passive microstrip structures, silicon Schottky diodes, and a medium power amplifier. The performance of the design was measured at 24 GHz using a three-element series fed antenna supplied by a voltage-controlled oscillator.