The SiMS15/2R1-8D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 14 to 16 GHz, Center Frequency 15 GHz, Insertion Loss 2 dB, Rejection 30 dB @13.1&16.8GHz, 40 dB @12.8&17GHz, 60 dB @DC~12GHz, 50 dB @18~28GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS15/2R1-8D2 can be seen below.