824-960MHz - 1710-1990 MHz Tri-
band Cavity Duplexer. The AD892-1850D227 tri-
band cavity duplexer has a low-
band passband of 824 to 960 MHz (GSM), covering the full cellular
band, and a high-
band passband of 1710 to 1990 MHz, covering the GSM1800 and the PCS
bands, making it well suited for
multi-band base station applications. Insertion loss is 0.3 dB or less, isolation of the lower and upper
bands is greater than 80 dB, and return loss in the two
bands is more than 20 dB. It measures 141 x 141...
(read more)