The BFCG-1952+ from Mini Circuits is a Band Pass Filter with Frequency 16.8 to 21.0 GHz, Center Frequency 18.8 GHz, Insertion Loss 0.9 to 2.5 dB, Upper Rejection 13 to 25 dB, Lower Rejection 14 to 24 dB. Tags: Ceramic, Ceramic Filter. More details for BFCG-1952+ can be seen below.