The QHDZ-2H-2.1G SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 2000 to 2300 MHz, Average Power 225 W, Insertion Loss 0.12 to 0.15 dB, Isolation 23 to 26 dB, Coupling -3 dB. Tags: Surface Mount. More details for QHDZ-2H-2.1G SQ can be seen below.