The SiMF16/4-8D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 14 to 18 GHz, Center Frequency 16 GHz, Insertion Loss 1 dB, Rejection 30 dB @12.7GHz&19.4GHz, 40 dB @12GHz&19.7GHz, 60 dB @DC~11GHz, 50 dB @19.9~27GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF16/4-8D2 can be seen below.