Multiplexer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11658642
APP PUB NO 20210050844A1
SERIAL NO

16985169

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A multiplexer includes: first and second substrates overlapping with each other with an air gap interposed therebetween; a first filter disposed on the first substrate and including first series resonators connected in series with a first path, and first parallel resonators; and a second filter disposed on the second substrate and including second series resonators connected in series with a second path, and second parallel resonators connected between the second path and a ground, each of the second series resonators and the second parallel resonators including a piezoelectric film, a first electrode interposed between the piezoelectric film and the second substrate, a second electrode interposed between the piezoelectric film and the air gap, and a resonance region, in at least one second parallel resonator, the first electrode being coupled to the second path, the second electrode being coupled to the ground, the resonance region overlapping with the first path.

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Patent Owner(s)

  • TAIYO YUDEN CO. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Isaka, Fumiaki Tokyo, JP 3 4

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