The FH1000-4000KF from Corech Microwave is a RF High Pass Filter with Frequency 10 to 40 GHz, Bandwidth 30000 MHz, Insertion Loss 2.0 dB, Power 1 W, Rejection 40 dB @DC-5 GHz, 30 dB @5-6 GHz. Tags: Module with Connectors, Suspended Substrate Filter, Stripline. More details for FH1000-4000KF can be seen below.