The AM2300B1349 from Anatech Electronics is a Band Pass Filter with Frequency 2.28 to 2.32 GHz, Bandwidth 40 MHz, Center Frequency 2300 MHz, Insertion Loss 2.5 dB, Upper Rejection 35 dBc @ 2400 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM2300B1349 can be seen below.