The D-618-8 from ET Industries is a Power Divider with Frequency 6 to 18 GHz, Insertion Loss 2.6 to 3 dB, Isolation 16 to 22 dB, Input Power 20 W, Amplitude Balance ± 0.6 dB. Tags: Module with Connectors, Stripline Power Divider. More details for D-618-8 can be seen below.