The DQS-30-450 from Synergy Microwave Corporation is a 90 Degree Hybrid Coupler with Frequency 30 to 450 MHz, Average Power 5 W, Insertion Loss 1.2 to 1.7 dB, Isolation 18 to 23 dB, Coupling 3 dB. Tags: Surface Mount. More details for DQS-30-450 can be seen below.