The SiMS11R85/2R3-7D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 10.7 to 13 GHz, Center Frequency 11.85 GHz, Insertion Loss 1.2 dB, Rejection 30 dB @9GHz&14.6GHz, 40 dB @8GHz&14.3GHz, 60 dB @DC~5GHz, 55 dB @16~26GHz, Upper Rejection 30 to 55 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS11R85/2R3-7D1 can be seen below.