The ZFDC-6-23-S+ from Mini-Circuits is a Coaxial Directional Coupler that operates from 20 to 2000 MHz. This 6.4 dB coupler has a directivity of over 17 dB, a mainline loss of 2.7 dB, and can handle up to 0.5 W of input power. It is available in a module with SMA connectors and is ideal for use in unbalanced 2-way splitters, cellular, instrumentation, communication receivers & transmitters, GPS, and a number of other applications.