The QBA-20+ from Mini Circuits is a 90 Degree Hybrid Coupler with Frequency 1800 to 2000 MHz, Average Power 25 W, Insertion Loss 0.02 to 0.54 dB, Isolation 17 to 23 dB, Amplitude Balance 0.7 dB. Tags: Surface Mount. More details for QBA-20+ can be seen below.