The QH8859 from Werlatone Inc is a 90 Degree Hybrid Coupler with Frequency 80 MHz to 1 GHz, Average Power 250 W, Insertion Loss 0.65 dB, Isolation 16 dB, Coupling 3 dB. Tags: Module with Connectors, Surface Mount, Drop In. More details for QH8859 can be seen below.