X band low-cost GaN TR module with anti-radiation structure

Abstract

Today AESA antenna is becoming more popular in various systems and for further use of it, lowering cost of key component like TR module is crucial. In this paper, a design of a low cost X band GaN module is described. In this module, all devices including HPA are surface mounted on resin board with highly enforced heat dissipation method inside resin. Furthermore unique anti-radiation property with EM shielded devices, enabling coverless module is adapted. The prototype module exhibits 13.3W output power with 30.8% efficiency at X band. Operational Isolation between channels is 29dB with coverless configuration. It weighs only 8.5g per channel, and it's manufacturing cost is estimated to be 40% of our conventional GaAs module.