Elastic wave filter device and duplexer

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United States of America Patent

PATENT NO 9419585
APP PUB NO 20150054597A1
SERIAL NO

14445307

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Abstract

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An elastic wave filter device includes a one-port elastic wave resonator and an elastic wave filter unit connected in series to the one-port elastic wave resonator. The one-port elastic wave resonator is connected in parallel to an inductance. In the elastic wave filter device, fr1>f0 is satisfied, where f0 is the center frequency of a passband of the elastic wave filter unit, and fr1 is a resonant frequency of the one-port elastic wave resonator.

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Patent Owner(s)

  • MURATA MANUFACTURING CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yasuda, Junpei Nagaokakyo, JP 35 69

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