Band rejection filtering arrangement

Details Band rejection filtering arrangement Band rejection filtering arrangement

H - Electricity

01

P

333/74

H01P 1/20 (2006.01)

Patent

CA 1317649

BAND REJECTION FILTERING ARRANGEMENT Abstract A band rejection filtering arrangement utilizing bandpass filters each terminated by a matched load. A quadrature hybrid circuit divides the input signals and applies them to the bandpass filters. Signals within the rejection band are dissipated by the filters and matched loads, whereas desired signals are reflected. The reflected signals are then combined by the quadrature hybrid circuit to provide the band rejected output. This arrangement is made switchable between an all pass mode and the band rejection mode by providing PIN diodes between the quadrature hybrid circuit and the bandpass filters.

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