RF front end modules (RF FEMs) integrate essential RF components such as low-noise amplifiers (LNAs), power amplifiers (PAs), filters, and switches into a single package. They are designed to amplify, filter, and condition RF signals before transmission or after reception in wireless communication systems. RF front end modules play a crucial role in optimizing signal quality, maximizing receiver sensitivity, improving transmitter efficiency, and enhancing overall system performance in applications such as cellular phones, Wi-Fi routers, Bluetooth devices, and IoT (Internet of Things) devices.