The SiMS15R7/R6-6S3 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 15.4 to 16.1 GHz, Center Frequency 15.75 GHz, Insertion Loss 3.2 dB, Rejection 30 dB @14.8GHz&16.85GHz, 40 dB @14.7GHz&17.25GHz, 60 dB @DC~6.15GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMS15R7/R6-6S3 can be seen below.