The SiMF13/2R8-6D1 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 11.6 to 14.4 GHz, Center Frequency 13 GHz, Insertion Loss 1.6 dB, Rejection 40 dB @DC~9.5GHz, 40 dB @16.1~25GHz, Upper Rejection 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF13/2R8-6D1 can be seen below.