The QC-7G18G-SFF-30W from Planar Monolithics Industries is a 90 Degree Hybrid Coupler that operates from 7 to 18 GHz. It has a coupling factor of 3.01 dB, an insertion loss of less than 1.3 dB and provides an isolation of over 18 dB. The coupler has an amplitude balance of less than ±0.5 dB and a phase balance of under ±5°. It can handle an average power of up to 30 W (CW) and a peak power of up to 1 kW. This coupler is available in a module with four SMA-female connectors.