Quantic PMI Model QC-4G40G-SFF-50W is a 4 to 40 GHz 90° Hybrid Coupler with minimum isolation of 12 dB and a maximum insertion loss of 2.8 dB; amplitude balance of ±1.2 dB; and a phase balance of ±10°. Package size is 1.46" x 0.71" x 0.43" with 2.92mm female connectors.