In-line filter having mutually compensating inductive and capactive coupling

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United States of America Patent

PATENT NO 11757164
APP PUB NO 20210336315A1
SERIAL NO

17319140

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Abstract

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An in-line resonator filter has a linear array of three or more conductors. A first pair of adjacent conductors has inductive main coupling and oppositely signed capacitive main coupling, while a second pair of non-adjacent conductors has inductive cross-coupling. The first and second pairs have one conductor in common. Between the second pair of non-adjacent conductors, there is no direct ohmic connection that provides the corresponding inductive cross-coupling. The oppositely signed capacitive main coupling compensates for at least a portion of the inductive main coupling between the first pair of adjacent conductors. The in-line resonator filter is able to provide one or more transmission zeros without requiring any discrete bypass connectors that provide direct ohmic connection between pairs of non-adjacent conductors. As such, the in-line resonator filters can be smaller, less complex, and less susceptible to damage.

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Patent Owner(s)

  • COMMSCOPE ITALY S.R.L.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Resnati, Giuseppe Seregno, IT 30 60
Tamiazzo, Stefano Milan, IT 11 21

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