The DQS-90-450 from Synergy Microwave Corporation is a 90 Degree Hybrid Coupler with Frequency 90 to 450 MHz, Average Power 1 W, Insertion Loss 1.2 to 1.5 dB, Isolation 16 to 23 dB, Coupling 3 dB. Tags: Surface Mount. More details for DQS-90-450 can be seen below.