Duplexer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10666229
APP PUB NO 20180026606A1
SERIAL NO

15719645

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A duplexer includes elastic wave resonators disposed on a piezoelectric substrate to define a ladder elastic wave filter including shunt-arm resonators and series-arm resonators. The duplexer includes an inductance component connected between an antenna terminal and a ground potential. A transmitting filter includes the ladder elastic wave filter. The inductance component is disposed outside a short side of the piezoelectric substrate such that the electromagnetic coupling between the shunt-arm resonator located closest to a transmitting terminal in the ladder circuit configuration, and the inductance component is stronger than the electromagnetic coupling between the inductance component and the remaining shunt-arm resonators.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTDKYOTO JAPAN KYOTO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takata, Toshiaki Nagaokakyo, JP 57 499

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