The BP2239A from PLEXSA MANUFACTURING is a Band Pass Filter with Frequency 22 to 39 GHz, Insertion Loss 1.5 dB, Rejection 45 to 55 dB, Upper Rejection 45 dB @ 42 to 55 GHz, Lower Rejection 55 dB @ DC to 20.8 GHz. Tags: Module with Connectors. More details for BP2239A can be seen below.