The ERZ-BPF-0920-1800-3.7 from ERZIA is a Band Pass Filter with Frequency 9.2 to 18 GHz, Insertion Loss 2 to 3.7 dB, Rejection 30 dB @8.77 GHz & 18.9 GHz, 60 [email protected] GHz & 19.28 GHz, Power 10 W, Return Loss 5.7 to 10 dB. Tags: Module with Connectors, Suspended Substrate Filter. More details for ERZ-BPF-0920-1800-3.7 can be seen below.