The MFBP-00052CH from Marki Microwave is a Band Pass Filter with Frequency 14.68 to 23.59 GHz, Center Frequency 18610 MHz, Insertion Loss 1.39 dB, Return Loss 29.12 dB, Operating_Temperature -55 to 100 Degree C. Tags: Die, MMIC Filter. More details for MFBP-00052CH can be seen below.