We offer a wide selection of Directional Couplers, Dual Directional Couplers and Hybrid Couplers, designed to cover 0.1GHz to 20GHz. Directional couplers are 4 port circuits where one port is isolated from the input port and can be realized in micro strip, strip line, coax and waveguide. The coupling feature is generally a quarter or multiple quarter wavelengths. Standard Connector SMA female, other connectors available upon request.