The SiMS15R65/7R3-9D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 11.9 to 19.5 GHz, Center Frequency 15.7 GHz, Insertion Loss 1.5 dB, Rejection 30 dB @9.45GHz&21.45GHz, 40 dB @8.25GHz&21.9GHz, 60 dB @DC~4GHz, 45 dB @22.5~27GHz, Upper Rejection 30 to 45 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS15R65/7R3-9D1 can be seen below.