The P1CP-SAF-R518G30W-XX from P1dB is a directional coupler that operates from 0.5 to 18 GHz. They are available in 10 dB, 20 dB and 30 dB coupling configurations (other coupling values are availabl on request). The couplers can handle up to 30 watts of input power and have a directivity performance of up to 20 dB. They are available with SMA connectors and are matched to 50 Ohms.