The QJB Series from QuinStar Technology are Bi-Directional Couplers that operate from 18 to 220 GHz. They have coupling values of 10, 20, 30, and 40 dB, the directivity of more than 25 dB, and an insertion loss of less than 3 dB. The couplers have a VSWR of less than 1.20:1 and are available in a module with various waveguide sizes (depending on the frequency).
