The CMX40Q03 from RN2 Technologies is a 90 Degree Hybrid Coupler with Frequency 3700 to 4200 MHz, Average Power 80 W, Insertion Loss 0.25 to 0.30 dB, Isolation 18 to 21 dB, Coupling 3 dB. Tags: Surface Mount. More details for CMX40Q03 can be seen below.