The FB-1050SM from Marki Microwave is a Band Pass Filter with Frequency 9.6 to 11.4 GHz, Bandwidth 1.8 GHz, Center Frequency 10.5 GHz, Insertion Loss 2 to 3 dB, Rejection 35 to 50 dB. Tags: Surface Mount. More details for FB-1050SM can be seen below.