The BFHK-1982+ from Mini Circuits is a Band Pass Filter with Frequency 17500 to 22200 MHz, Bandwidth 4700 MHz, Center Frequency 19.7 GHz, Insertion Loss 2.8 to 4.0 dB, Upper Rejection 40 to 80 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BFHK-1982+ can be seen below.