A switch filter module is a multifunctional packaged product that integrates RF/microwave switches and filters. It is mainly used for switching and filtering of multi-band and multi-channel signals. By control signals, it selects different filter channels to suppress out-of-band harmonics, spurious signals, and interference. It features low insertion loss, high isolation, fast switching speed, small size, and high reliability, and is widely used in radar, communications, electronic countermeasures, satellite communications, test and measurement, and other fields.