Din7-16 type connector is a medium filled threaded connection structure with polarity connector, named for the metric size of this connector, the outer diameter of the inner conductor is 7mm, the inner diameter of the outer conductor is 16mm, DIN is the English abbreviation of German industrial standard. It usually operates at dC-7.5 GHz. Din7-16 connector has the characteristics of large power capacity, small VSWR, excellent passive intermodulation PIM performance, good air tightness, etc. Din7-16 connector has the best low passive intermodulation performance among all current RF connectors. Din7-16 connector is widely used in radio and TV antenna system, jumper connection and main feed cable connection of microwave communication system, especially in cellular base station.