The SiMF34R75/1R7-7W2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 33.9 to 35.6 GHz, Center Frequency 34.75 GHz, Insertion Loss 2.5 dB, Rejection 30 dB @32.8GHz&36.5GHz, 40 dB @32GHz&36.9GHz, 50 dB @DC~31GHz, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF34R75/1R7-7W2 can be seen below.