The SWP-71386304-12-E1 from ERAVANT is a Waveguide Combiner / Divider with Frequency 71 to 86 GHz, Amplitude Balance ±0.4 to 0.5 dB, Insertion Loss 0.8 to 1 dB, Isolation 15 to 25 dB, Operating Temperature -40 to 85 Degree C. More details for SWP-71386304-12-E1 can be seen below.