The SiMF13R5/R9-3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 13.05 to 13.95 GHz, Center Frequency 13.5 GHz, Insertion Loss 2.5 dB, Rejection 30 dB @12.1GHz&14.6GHz, 40 dB @11.75GHz&15GHz, 60 dB @DC~10.7GHz, 50 dB @15.2~21.5GHz, Upper Rejection 30 to 50 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF13R5/R9-3 can be seen below.