SAW RESONATOR COMPRISING LAYERS FOR ATTENUATING PARASITIC WAVES

The invention relates to a SAW resonator (100) comprising at least: a substrate (102); a layer (108) of piezoelectric material arranged on the substrate; a first attenuation layer (112) arranged between the substrate and the layer of piezoelectric material, and/or, when the substrate comprises at le...

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Bibliographic Details
Main Authors HUYET, Isabelle, DROUIN, Alexis, REINHARDT, Alexandre, VO, Thu Trang, MOULET, Jean-Sébastien, SINQUIN, Yann
Format Patent
LanguageEnglish
French
German
Published 30.03.2022
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Summary:The invention relates to a SAW resonator (100) comprising at least: a substrate (102); a layer (108) of piezoelectric material arranged on the substrate; a first attenuation layer (112) arranged between the substrate and the layer of piezoelectric material, and/or, when the substrate comprises at least two different layers (104, 106), a second attenuation layer (114) arranged between the two layers of the substrate; and in which the at least one attenuation layer is/are heterogeneous.
Bibliography:Application Number: EP20180712986