The SiMF22R6/2-6D2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 21.4 to 23.7 GHz, Center Frequency 22.55 GHz, Insertion Loss 2 dB, Rejection 30 dB @19.9GHz&25GHz, 40 dB @19.4GHz&25.2GHz, 60 dB @DC~16.5GHz, 45 dB @25.5~29GHz, Upper Rejection 30 to 45 dB. Tags: Surface Mount, Cavity Filter. More details for SiMF22R6/2-6D2 can be seen below.