The MFBP-00034PSM from Marki Microwave is a Band Pass Filter with Frequency 18.05 to 21.3 GHz, Center Frequency 19610 MHz, Insertion Loss 2.25 dB, Return Loss 22 dB, Operating_Temperature -55 to 100 Degree C. Tags: Surface Mount, MMIC Filter. More details for MFBP-00034PSM can be seen below.