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1. WO2020109085 - ELECTRO ACOUSTIC RESONATOR AND RF FILTER

Publication Number WO/2020/109085
Publication Date 04.06.2020
International Application No. PCT/EP2019/081808
International Filing Date 19.11.2019
IPC
H03H 9/145 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
02Details
125Driving means, e.g. electrodes, coils
145for networks using surface acoustic waves
CPC
H03H 9/1452
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
02Details
125Driving means, e.g. electrodes, coils
145for networks using surface acoustic waves
14517Means for weighting
1452by finger overlap length, apodisation
H03H 9/14558
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
02Details
125Driving means, e.g. electrodes, coils
145for networks using surface acoustic waves
14544Transducers of particular shape or position
14558Slanted, tapered or fan shaped transducers
Applicants
  • RF360 EUROPE GMBH [DE]/[DE]
Inventors
  • HUCK, Christian
  • DADGAR JAVID, Gholamreza
Agents
  • DAUM, Patrick
Priority Data
10 2018 130 141.328.11.2018DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTRO ACOUSTIC RESONATOR AND RF FILTER
(FR) RÉSONATEUR ÉLECTRO-ACOUSTIQUE ET FILTRE RF
Abstract
(EN)
An improved electro acoustic resonator that works well with thin film piezoelectric materials is provided. The resonator has an electrode structure with a plurality of electrode fingers and a velocity compensation structure provided and adapted for establishing a homogenous transversal velocity profile.
(FR)
L'invention concerne un résonateur électro-acoustique amélioré qui fonctionne bien avec des matériaux piézoélectriques à film mince. Le résonateur comporte une structure d'électrode dotée d'une pluralité de doigts d'électrode et une structure de compensation de vitesse prévue et conçue pour établir un profil de vitesse transversale homogène.
Also published as
Latest bibliographic data on file with the International Bureau