The FHC10293 from Knowles is a Quadrature Hybrid Coupler that operates from 6 to 18 GHz. This 3 dB coupler provides an isolation of 15 dB and has an insertion loss of less than 1 dB. It can handle a CW input power of 50 W and has a return loss of 15 dB. This hybrid coupler has an amplitude balance of ±1 dB and a phase balance of ±3°.
The FHC10293 incorporates Knowles DLI high permittivity ceramic materials and comes as a compact drop-in solution. It also ensures minimal performance variation over temperature with highly repeatable performance. This RoHS-compliant coupler is available in a wire-bondable package that measures 0.350 x 0.250 x 0.010 inches.