The ERZ-BPF-0540-1000-3.1 from ERZIA is a Band Pass Filter with Frequency 5.4 to 10 GHz, Insertion Loss 1.6 to 3.1 dB, Rejection 30 dB @5.1 GHz & 10.5 GHz, 60 [email protected] GHz & 10.8 GHz, Power 10 W, Return Loss 5.07 to 10 dB. Tags: Module with Connectors, Suspended Substrate Filter. More details for ERZ-BPF-0540-1000-3.1 can be seen below.