The AE2400-2470D489 from Anatech Electronics is a cavity duplexer with pass bands from 2365 MHz to 2435 MHz and 2445 MHz to 2495 MHz. It has an insertion loss of less than 4.7 dB, an isolation of 80 dB and return loss of 17 dB. The duplexer can handle over 20 W of power. It measures 6.23 x 3.53 x 1.3 inches and is available with SMA female connectors.