The AE1867-1947DB0045-A from Anatech Electronics is a RF Duplexer with Frequency 1.85 to 1.885 GHz / 1.93 to 1.965 GHz, Band 1 1.85 to 1.885 GHz, Band 2 1.93 to 1.965 GHz, Insertion Loss 1 dB, Isolation 35 dB. Tags: Module with Connectors. More details for AE1867-1947DB0045-A can be seen below.