The ZADC20-22-7550+ from Mini-Circuits is a directional coupler that operates from 1 to 200 MHz. It has a coupling value of 21 dB, directivity of over 12 dB and an insertion loss of under 0.4 dB. The coupler can handle up to 2 watts of power. It is available in a module with SMA/SMC connectors and is ideal for instrumentation, CATV, VHF/HF applications.
