| 摘要 |
A multiple response filtering apparatus having distribution means, with an inlet port and a plurality of outlet ports, suitable to distribute inlet signals on at least a first assembly of said outlet ports plurality and to further distribute signal arriving from said at least a first assembly on at least a second assembly of said plurality of outlet ports; a plurality of filtering units, having first and second terminals, each filtering unit being connected by said first terminals to a relevant assembly of outlet ports of said distribution means and suitable to carry out a filtering operation transmitting a spectrum band of a signal on said first terminals and on said second terminals and reflecting the remaining part of the spectrum, and vice versa; and combination means with a plurality of inlet ports connected with second terminals of said filtering units and an outlet port, said combination means being suitable to combine on said outlet port signal arriving from said second terminals of said filtering units.
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