An X-band High Power Tile-Type GaN TR Module for Low-Profile AESA

This paper describes a tile-type high-transmit-power TR module in order to realize a low-profile AESA (active electronically scanned array) radars. The TR module is based on a newly developed multichip packaging technology featuring top-surface waste heat structure with a flip-chip mounting and heat sinks. Measurements of the prototype TR module show an output power of over 43 dBm (20 W) and a noise figure of 2.8 dB over X-band. This power is the state-of-the-art level among ever reported X-band tile-type TR modules.