TYPE SMA is a Kind of RF coaxial connectors that is widely applied, with
small-sized thread coupling. Characteristic impedance is 50Ω.The characteristic
of connectors is in wide frequency range、excellent performance、high reliability.
They are used in connection with RF cable or micro-strip line in RF circuit of
the WIAN SYSTEM、controlled program、microwave equipment and the digital
communication system. The frequency can be up to 18GHz by using semi-rigid
or semi-flex cable.