What is RF Front End Module for mobile phones:Manufacturers

An RF Front End Module (FEM) is a highly integrated subsystem that manages signal transmission and reception between a smartphone�s modem and antenna. RF FEMs typically include amplifiers, filters, switches, duplexers, and matching circuits to improve wireless connectivity and battery efficiency.

The mobile RF Front End (RFFE) landscape is highly competitive. The market is currently dominated by traditional tech giants, though emerging Chinese suppliers are rapidly gaining ground. Following is the list of leading mobile RFFE manufacturers with part numbers and features.

Qualcomm

• QPM-5670 / QPM-3981AQ : These are 5G NR RF front end modules from Qualcomm. They houses PAs, LNAs, switches and filters into single compact Land Grid Array (LGA) footprint. These highly integrated System-in-Package (SiP) solutions are optimized for sub 6-GHz bands.

Broadcom

• AFEM-W750 : It is designed to handle the complex modulation of Wi-Fi 7 (up to 4096QAM) alongside 5G cellular signals.

Skyworks Solutions

• SKY58277-11 : This is a 5G Ultra High Band (UHB) Transmit/Receive Front End Module. It supports both 4G LTE and 5G NR applications. It is housed in a compact 5.0 x 3.0 mm surface mount package. It includes integrated PA blocks, Tx-Rx switches, and a MIPI standard digital control block, with all RF ports internally matched to 50 ohms.

Qorvo

• QM55003 : This is a highly integrated RFFE module specifically tailored for Cellular IoT, NB-IoT and Cat-M1 mobile applications. It is a multi band, multi chip module that supports both low band (663 to 915 MHz) and mid band (1695 to 1980 MHz) operations

Summary

An RF front end module integrates key RF components required for smartphone connectivity. Leading manufacturers develop RF FEM solutions for LTE, 5G, Wi-Fi, and multi-band mobile communication systems.