Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1980-07-10
1982-04-27
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
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
Cannon, Jr. James J.
Nussbaum Marvin L.
U.S. Philips Corporation
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