The QPF0219 from Qorvo is a Tx/Rx Front-End Module that operates from 2 to 18 GHz. It consists of a T/R switch, a limiter, a low-noise amplifier, and a power amplifier. In Tx mode, it delivers saturated power of 10 W with a gain of 14 dB and a PAE of 20% while in Rx mode, it provides a gain of 14 dB with a noise figure of 4 dB. The power amplifier and Tx/Rx switch in the FEM are based on GaN-on-SiC technology while the limiter and LNA are based on GaAs technology. It requires DC supplies of 22 V (for Tx) and 5 V (for Rx) and consumes 1680 mA of current during transmission (Tx). The QPF0219 is available in an air-cavity QFN package that measures 8.0 x 8.0 mm and is ideal for commercial and military radars and communication applications.
