4. Electronic devices

4.1 HEMTs for microwave power

The main applications for GaN HEMT transistors are the manufacture of components and integrated circuits dedicated to microwave power applications. The main applications have been on SiC and Si substrates. These microwave applications cover operating frequencies from S-band to W-band. The main applications are civil and military radars (surface radars, on-board radars in aircraft and UAVs). Other military applications include jammers, missile homing devices, land, air and satellite links. Telecommunications applications include point-to-point and point-to-multipoint links, satellite links and backhauling up to 85 GHz. Devices are mainly based on SiC substrates for military applications, where performance is the main criterion. On the other hand, in the...