The SiMF16R4/3R2-8D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 14.8 to 18.1 GHz, Center Frequency 16.4 GHz, Insertion Loss 2.6 dB, Rejection 30 dB @13.6GHz&19.1GHz, 40 dB @13.3GHz&19.5GHz, 60 dB @DC~12.2GHz, 60 dB @19.8~22.5GHz, Upper Rejection 30 to 60 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF16R4/3R2-8D2 can be seen below.