The SWP-50370302-15-S1 from ERAVANT is a Waveguide Combiner / Divider with Frequency 50 to 70 GHz, Amplitude Balance ±0.20 dB, Insertion Loss 0.5 to 0.8 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. More details for SWP-50370302-15-S1 can be seen below.