The SiMF9R8/1R2-8D3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 9.2 to 10.4 GHz, Center Frequency 9.8 GHz, Insertion Loss 2.5 dB, Rejection 30 dB @8.35GHz&11.15GHz, 40 dB @8.15GHz&11.3GHz, 60 dB @DC~7.5GHz, 50 dB @12~17GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF9R8/1R2-8D3 can be seen below.