Cree aims at the military with half kilowatt GaN HEMT

Called CGHV14500, it also has a 250W partner, the CGHV14250.

According to the firm, they have “the highest known L-Band efficiency performance at 85°C”.

Applications are foreseen between UHF and 1.8GHz in: tactical air navigation systems (TACAN), identification: friend or foe (IFF) systems, and military telemetry.

The devices are being made on Cree’s 50V 0.4µm GaN-on-SiC foundry and are available in ceramic/metal flange and pill packages – claimed to be smaller than competing GaAs or silicon RF technology.

Inputs are internally pre-matched, and the 500W device has 17dB power gain and 70% typical drain efficiency at 85°C.

The 250W device, said Cree, features 330W typical output power as well as 18dB power gain and 77% typical drain efficiency.

Both have 0.3dB pulsed amplitude droop.

Large-scale models are available at Agilent ADS and AWR Microwave, and Digikey is planning to have stock by September.

There is a CGHV14500 video, in which it is described as a 900MHz-1.5GHz transistor.