Surface acoustic wave device, duplexer and comb-shaped electrode

A surface acoustic wave device of a ladder type includes a series resonator and a parallel resonator, in which the parallel resonator includes a first reflector, a second reflector, and a comb-shaped electrode located between the first reflector and the second reflector, and the comb-shaped electrod...

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Bibliographic Details
Main Authors Tajima, Motoyuki, Sato, Takahiro
Format Patent
LanguageEnglish
Published 21.05.2019
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Summary:A surface acoustic wave device of a ladder type includes a series resonator and a parallel resonator, in which the parallel resonator includes a first reflector, a second reflector, and a comb-shaped electrode located between the first reflector and the second reflector, and the comb-shaped electrode includes a first section in which electrode fingers are formed at a constant cycle, and a second section in which electrode fingers are formed at a constant cycle different from the cycle of the first section.
Bibliography:Application Number: US201715397953