This is a great connector for anyone doing RF work, when an SMA connector is required. It hugs the edge of a standard 0.063" thick PCB and 'launches' off of the edge. We like these for their ease of soldering and low profile. Mates with any SMA plug, we also have an SMA to RP-SMA in case your antenna is RP-SMA
UFL SMT Antenna Connector (4 Pack)
uFL connectors are very small surface-mount parts used when an external RF antena is desired but a big bulky SMA connector takes up too much space. We use this part..
SSMA Connector - 90 Deg - PCB
The SMA series is a very popular coax connector with threaded coupling, and can be used up to frequencies of over 18 GHz (depending on type). The impedance is controlled..