The SiMF9R15/1R3-8D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 8.5 to 9.8 GHz, Center Frequency 9.15 GHz, Insertion Loss 3 dB, Rejection 30 dB @7.9GHz&10.5GHz, 40 dB @7.8GHz&10.6GHz, 60 dB @DC~7.3GHz, 50 dB @12~20GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF9R15/1R3-8D3 can be seen below.