The MFBC-00009CH from Marki Microwave is a Band Pass Filter with Frequency 46.50 to 63.50 GHz, Center Frequency 54120 MHz, Insertion Loss 1.6 to 2.26 dB, Lower Rejection 40 to 67 dB, Return Loss 10.88 to 19.54 dB. Tags: Die, MMIC Filter. More details for MFBC-00009CH can be seen below.