The QPF4239 from Qorvo is a Wi-Fi 7 (802.11be) Front-End Module (FEM) that operates from 2412 to 2484 MHz. It consists of a 2,4 GHz power amplifier (PA), single-pole two-throw switch (SP2T), and bypassable low-noise amplifier (LNA). This FEM also has an RF output coupler and a broad-range, constant-slope voltage logarithmic power detector for application feedback.
In the Tx path, it delivers an output power of 19 dBm, with a gain of 30 dB while on the Rx side, it provides a gain of 15,5 dB, and has a noise figure of 1,7 dB. The FEM has integrated die-level filtering for second and third harmonics, and 2,4 GHz rejection for DBDC operation.
This module requires a DC supply of 3,0 to 3,6 V, and consumes less than 185 mA of current. It is available in a surface-mount 16-pad laminate package that measures 3,0 x 3,0 mm. The FEM is ideal for access points, wireless routers, IoT, customer premise equipment, and set-top box applications.
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