The BP0805A4320ASTR from KYOCERA AVX is a Band Pass Filter with Frequency 4.12 to 4.52 GHz, Bandwidth 400 MHz, Center Frequency 4320 MHz, Insertion Loss 1.2 dB, Upper Rejection 39 to 44 dBc. Tags: Surface Mount. More details for BP0805A4320ASTR can be seen below.