The MFB-2025CH from Marki Microwave is a Band Pass Filter with Frequency 16 to 26 GHz, Center Frequency 20250 MHz, Insertion Loss 1.37 to 3 dB, Upper Rejection 20 to 45 dB, Lower Rejection 30 to 45 dB. Tags: Die, MMIC Filter. More details for MFB-2025CH can be seen below.