QuinStar Precision Crossguide Couplers

Featured Product from QuinStar Technology, Inc.


QuinStar’s QJC crossguide directional couplers cover 18 to 220 GHz in ten waveguide bands. Three-and four-port configurations are available for standard models with midband nominal coupling values of 20, 30, and 40 dB. We offer other coupling values as custom products.

Crossguide couplers are ideal devices for sampling or inserting RF energy in a waveguide transmission line without affecting the transmitting signal. To illustrate, typical applications include frequency monitoring, power sampling, and built-in testing.  This crossguide-type directional coupler has the advantage of lower insertion loss, smaller size, and lower cost compared to broadwall directional couplers.

QuinStar can provide custom configurations and application-specific interfaces to suit unique needs.