The SWP-24344302-28-S1 from ERAVANT is a Waveguide Combiner / Divider with Frequency 24 to 44 GHz, Amplitude Balance ±0.2 to 0.4 dB, Insertion Loss 0.4 to 0.8 dB, Isolation 12 to 18 dB, Return Loss 10 to 18 dB. More details for SWP-24344302-28-S1 can be seen below.