The FH1200-1800SF from Corech Microwave is a RF High Pass Filter with Frequency 12 to 18 GHz, Bandwidth 6000 MHz, Insertion Loss 1.0 dB, Power 10 W, Rejection 50 dB @DC-10.5 GHz (60 Type). Tags: Module with Connectors, Suspended Substrate Filter, Stripline. More details for FH1200-1800SF can be seen below.