The WiFi FEM That Maximises Receiver Sensitivity


Compact form factor and integrated matching minimises layout area for signal transmission and receiving applications

RFMW announces design and sales support for Wi-Fi 5 (802.11ax) front end module (FEM). The Qorvo QPF4219 optimises the power amplifier for 5V operation while maintaining linear output power and leading-edge throughput.

The receive path maximises Rx sensitivity through noise figure performance that is consistent over a wider variety of conditions. External filtering can be added while integrated die level filtering for 2nd and 3rd harmonics as well as 5 GHz rejection for DBDC operation are included.


The QPF4219 integrates a 2.4 GHz power amplifier, regulator, single pole two throw switch (SP2T), bypassable low noise amplifier (LNA) and DC power detector into a single device.

It is designed for access points, wireless routers, residential gateways and CPEs in the 2400 to 2500 MHz frequency range,

Key Features

  • 33 dB of Tx gain and 15.5 dB of Rx gain
  • Noise figure is 1.9dB

This FEM comes in a 5 x 3 mm package.

For more details, read here

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