The AM1400B1355 from Anatech Electronics is a Band Pass Filter with Frequency 1.39 to 1.41 GHz, Bandwidth 20 MHz, Center Frequency 1400 MHz, Insertion Loss 3.4 dB, Upper Rejection 65dBc @ 1600 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1400B1355 can be seen below.