Inventors:
Michael C. Callas - Valencia CA
Assignee:
Hughes Electronics - Los Angeles CA
International Classification:
H04J 100
Abstract:
A modular, multi-channel, contiguous output, multiplexer which combines directional filters with the diplexed output of two multi-channel multiplexers, each covering a contiguous frequency band, i. e. , one is a low multiplexer and the other a high multiplexer, and one or more quasi-elliptical directional filters after the diplexer output to cover the hole left by the diplexer crossover. A preferred embodiment may essentially consist of: 1) a 12 channel contiguous multiplexer, either a hybrid directional and manifold type multiplexer or a short circuited multiplexer, covering frequencies, e. g. , in the range from 3. 7 GHz to 4. 2 GHz; 2) a 6 channel contiguous multiplexer spanning frequencies substantially in the range from 3. 42 GHz to 3. 62 GHz; 3) a diplexer including a 6 section Chebyshev filter, with a passband of frequencies, e. g.
