The AM1455-1503D1089 from Anatech Electronics is a RF Duplexer with Frequency 1447.4 to 1463.4 MHz / 1495.4 to 1511.4 MHz, Band 1 1447.4 to 1463.4 MHz, Band 2 1495.4 to 1511.4 MHz, Power 3 W, Insertion Loss 3 dB. Tags: Surface Mount, Ceramic. More details for AM1455-1503D1089 can be seen below.