Abstract

A four-element Transmit/Receive Module (Quadpack) design is presented, with two independent receive channels per element for application in the X-band Active Phase Array Radar. This wideband T/R Module features typical output powers of 8W pulsed and 5W CW, typical 5 dB Noise Figure with six-bit amplitude and phase control. The CW-mode of operation enables missile illumination and guidance. Sophisticated packaging together with appropriate MMIC technologies resulted in a high yielding and high performance T/R Module, of which more than 1000 Quadpacks (4000 elements) have been manufactured to date.