The 10A4NA-180 from Renaissance Electronics Corporation is a 180 Degree Hybrid Coupler with Frequency 2.2 to 2.4 GHz, Average Power 20 W, Amplitude Balance 0.4 dB, Phase Balance 1.5°, Insertion Loss 3.5 dB. Tags: Module with Connectors. More details for 10A4NA-180 can be seen below.