The AM770-715D1158-C from Anatech is a Ceramic Duplexer with Band 1 from 758 to 783 MHz and Band 2 from 703 to 728 MHz. The Duplexer has an insertion loss of less than 2.5 dB and an isolation of over 45 dB. It can handle up to 5 watts of power and is available in a connectorized module that measures 65 x 40 x 20 mm with SMA female connectors.