The AM3450B1348 from Anatech Electronics is a Band Pass Filter with Frequency 3.4 to 3.5 GHz, Bandwidth 100 MHz, Center Frequency 3450 MHz, Insertion Loss 2.6 dB, Rejection 3.6 to 60 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM3450B1348 can be seen below.