The BWBF-13R4/16R4-7C3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 13 to 16.3 GHz, Center Frequency 14.65 GHz, Insertion Loss [email protected], Rejection =35 dB @10& 19.8GHz, Upper Rejection 35 dB. Tags: Surface Mount. More details for BWBF-13R4/16R4-7C3 can be seen below.