High Power Dual Directional Couplers: HD SeriesSource: Microwave Communications Laboratories, Inc. (MCLI)
This series of dual directional couplers is ideal for signal measurement applications in the 0.5 to 11 GHz frequency range. They feature monitoring high power amplifiers, custom coupling values from -30dB to -50dB, and a flat frequency response.
Directional couplers have at least three ports; an input, output, and coupling port. A signal passes between the input and output ports, and a small portion of that signal power applied to the input then passes to the coupling port. The coupling signals are isolated from the line output port to prevent reflections. For specific information on the HD Series of high power dual directional couplers, download the datasheet.