The SiMF22/1-6E3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 21.5 to 22.5 GHz, Center Frequency 22 GHz, Insertion Loss 3 dB, Rejection 30 dB @20.55GHz&24.1GHz, 40 dB @19.7GHz&24.4GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF22/1-6E3 can be seen below.