SMA connector 

SMA is the abbreviation of SubMiniature version A. SMA connector has a 50ohm impedance, 1/4-36 thread type coupling mechanism and this RF connector offers excellent electrical performance from 0 to 18GHz.

SMA connectors are available in various quality classes for different applications with different material options.  Various SMA connectors are widely used in Vehicle Tracking System, Wireless LAN, WiMax, Telecommunication, Aero and precise testing instrumentation.