The RF filter is mainly used in high-frequency electronic equipment, used for large attenuation of high-frequency interference signals generated by high-frequency electronic equipment. Rf filter is a special device for filtering frequency. It can make the specific frequency components of the signal pass through, and greatly attenuate or suppress other frequency components, so as to realize the functions of filtering, coexistence, duplex and aggregation of the RF signal. In terms of applications, filters are widely used in mobile phones, tablets, smart homes, cars, biomedical fields, with a huge market. Filters can also be used in GPS navigation, electronic countermeasures and other military applications.
