The QPF4005 from Qorvo is a Dual-Channel GaN MMIC Front-End Module (FEM) that operates from 37 to 40.5 GHz. The Tx path (PA+T/R SW) provides a saturated output power of 2 W for each channel with a small signal gain of 18 dB while the Rx path (LNA+T/R SW) is designed to provide 15 dB of gain with a noise figure of less than 4.5 dB. It is fabricated on Qorvo’s 0.15um GaN on SiC process and is housed in an air-cavity laminate package with an embedded copper heat slug.
For each channel, a multi-function MMIC die combines a low noise amplifier (LNA), a low insertion-loss high-isolation TR switch, and a high-gain high-efficiency multi-stage PA. The FEM is available as a surface mount package that measures 4.5 x 6 x 1.8 mm and is suitable for phased array 5G base stations and terminals, point to point communications, and also supports multi-channel/dual-polarization phased array applications.