RF phase shift apparatus having an electrically coupled path separated from an electromagnetically coupled path to provide a substantially constant phase difference therebetween

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United States of America Patent

PATENT NO 9306257
APP PUB NO 20150288042A1
SERIAL NO

14243166

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Abstract

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Circuitry for shifting a phase of a radio frequency (RF) signal. Mutually dissimilar and electrically coupled portions of an electromagnetic transmission line pattern on one side of a substrate interact with another electromagnetic transmission line pattern on the opposing substrate side to convey a RF signal with a phase shift that is determined by the RF signal frequency and respective dimensions of the electromagnetic transmission line patterns and is substantially constant over a wide bandwidth. With multiple implementations of such opposing electromagnetic transmission line patterns having different pattern dimensions and coupled between RF signal switches, multiple phase shifts can be selectively provided.

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Patent Owner(s)

Patent OwnerAddress
LITEPOINT CORPORATION575 MAUDE COURT SUNNYVALE CA 94085

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huynh, Minh-Chau San Mateo, US 18 369

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