The MFBP-00055CH from Marki Microwave is a Band Pass Filter with Frequency 22.25 to 33.17 GHz, Center Frequency 27170 MHz, Insertion Loss 1.29 dB, Return Loss 25.85 dB, Operating_Temperature -55 to 100 Degree C. Tags: Die, MMIC Filter. More details for MFBP-00055CH can be seen below.