The PSF29B22S from Nuvotronics, Inc. is a Band Pass Filter with Frequency 18 to 40 GHz, Bandwidth 22000 MHz, Center Frequency 29000 MHz, Insertion Loss 0.4 to 1.8 dB, Upper Rejection 29 to 50 dB@46 GHz. Tags: Surface Mount. More details for PSF29B22S can be seen below.