Bandstop filter for very high frequency transmission lines and b

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

Patent

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Details

333246, H01P 1213, H01P 1203, H01P 308

Patent

active

043273424

ABSTRACT:
A bandstop filter for very high frequency transmission lines having distributed constants, having several filtering elements each intended to prevent the transmission of a specific frequency band. The first filtering element is a quarter-wave filter, the second element an assembly of two transmission paths of a length such that the signals present at the outputs have opposite phases and cancel other, the third element being a quarter-wave filter, these elements being grouped such that they form an extremely compact filter which is little sensitive to proximity effects.

REFERENCES:
patent: 2258148 (1941-10-01), Schussler
patent: 4074214 (1978-02-01), Aichholzer

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