AEI cavity duplexers are available with 2 to 18 resonators and bandwidths ranging from 3% to 100%. The resonator and cavity are silver plated for low insertion loss and high selectivity. The cavity duplexers range in frequencies from 20 MHz to 20 GHz, and can handle RF power inputs up to 500 W. Duplexers are available that can withstand hostile environments encountered in outdoor installations. Standard designs use a 0.05-dB Chebyshev response and other response types such as Butterworth and elliptic are also used depending on the performance. They range in length from 1.5 to more than 10 in. depending on the insertion loss, power handling, and center frequency requirements. The duplexers are available in surface mount, connectorized, PC mount, drop-in, as well as special conﬁgurations speciﬁed by the requirements.
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