CN115989635A - 谐振器、滤波器及电子设备 - Google Patents
谐振器、滤波器及电子设备 Download PDFInfo
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- CN115989635A CN115989635A CN202080103518.1A CN202080103518A CN115989635A CN 115989635 A CN115989635 A CN 115989635A CN 202080103518 A CN202080103518 A CN 202080103518A CN 115989635 A CN115989635 A CN 115989635A
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- reflective
- bus bar
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- piston
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Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14538—Formation
- H03H9/14541—Multilayer finger or busbar electrode
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02685—Grating lines having particular arrangements
- H03H9/02724—Comb like grating lines
- H03H9/02732—Bilateral comb like grating lines
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/644—Coupled resonator filters having two acoustic tracks
- H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
- H03H9/6469—Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes
- H03H9/6476—Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes the tracks being electrically parallel
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6483—Ladder SAW filters
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
一种谐振器、滤波器(1010)及电子设备(100)，涉及谐波抑制技术领域，能够减少谐振器在谐振点和反谐振点之间的杂波。该谐振器包括：压电衬底(200)、叉指换能器(01)；叉指换能器(01)包括：沿第一方向(XX’)依次交替且并列设置的多个第一叉指电极(11)和多个第二叉指电极(12)；沿垂直第一方向(YY’)上分布在多个叉指电极(T)的不同侧的第一汇流条(10)和第二汇流条(20)；第一汇流条(10)与第一叉指电极(11)连接，第二汇流条(20)与第二叉指电极(12)连接；设置在第一叉指电极(11)两个端部上表面的第一piston(1)和第二piston(3)，设置在第二叉指电极(12)两个端部上表面的第三piston(3)和第四piston(4)；第一piston(1)相对于第二piston(2)靠近第一汇流条(10)，第三piston(3)相对于第四piston(4)靠近第一汇流条(1)；第一piston(1)与第三piston(3)的长度不同，第二piston(2)和第四piston(4)的长度不同。
Description
PCT国内申请，说明书已公开。
Claims (13)
- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/126075 WO2022094743A1 (zh) | 2020-11-03 | 2020-11-03 | 谐振器、滤波器及电子设备 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115989635A true CN115989635A (zh) | 2023-04-18 |
Family
ID=81458446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080103518.1A Pending CN115989635A (zh) | 2020-11-03 | 2020-11-03 | 谐振器、滤波器及电子设备 |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4228155A4 (zh) |
| CN (1) | CN115989635A (zh) |
| WO (1) | WO2022094743A1 (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114978089B (zh) * | 2022-05-20 | 2023-11-21 | 武汉敏声新技术有限公司 | 一种谐振器及其制备方法、滤波器 |
| CN115208349A (zh) * | 2022-09-16 | 2022-10-18 | 深圳新声半导体有限公司 | 一种声表面波滤波器 |
| CN116192085A (zh) * | 2023-02-20 | 2023-05-30 | 无锡市好达电子股份有限公司 | 横向激发体声波谐振器 |
| CN116366022A (zh) * | 2023-03-20 | 2023-06-30 | 江苏卓胜微电子股份有限公司 | 温度补偿声表面换能器及制造方法 |
| CN116683885B (zh) * | 2023-05-23 | 2023-12-22 | 无锡市好达电子股份有限公司 | 一种具有活塞模式的声表面波装置 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7576471B1 (en) * | 2007-09-28 | 2009-08-18 | Triquint Semiconductor, Inc. | SAW filter operable in a piston mode |
| US7939989B2 (en) * | 2009-09-22 | 2011-05-10 | Triquint Semiconductor, Inc. | Piston mode acoustic wave device and method providing a high coupling factor |
| DE102010005596B4 (de) * | 2010-01-25 | 2015-11-05 | Epcos Ag | Elektroakustischer Wandler mit verringerten Verlusten durch transversale Emission und verbesserter Performance durch Unterdrückung transversaler Moden |
| KR102636251B1 (ko) * | 2016-02-24 | 2024-02-14 | (주)와이솔 | 횡모드 억제를 위한 표면 탄성파 디바이스 |
| JP6509151B2 (ja) * | 2016-03-11 | 2019-05-08 | 太陽誘電株式会社 | 弾性波共振器、フィルタおよびマルチプレクサ |
| CN109328431B (zh) * | 2016-06-27 | 2022-07-29 | 株式会社村田制作所 | 弹性波滤波器装置 |
| WO2018216548A1 (ja) * | 2017-05-22 | 2018-11-29 | 株式会社村田製作所 | 弾性波装置 |
| JP2019091978A (ja) * | 2017-11-13 | 2019-06-13 | 株式会社村田製作所 | 弾性波装置、高周波フロントエンド回路及び通信装置 |
| DE102018108732A1 (de) * | 2018-04-12 | 2019-10-17 | RF360 Europe GmbH | Dünnschicht SAW-Wandler mit verbesserten Eigenschaften, elektroakustisches Filter und HF-Filter |
| CN109004914B (zh) * | 2018-07-11 | 2022-05-03 | 开元通信技术（厦门）有限公司 | 一种声表面波器件及其制备方法 |
| DE102018124372A1 (de) * | 2018-10-02 | 2020-04-02 | RF360 Europe GmbH | Elektroakustischer Resonator |
| JP6819834B1 (ja) * | 2019-02-18 | 2021-01-27 | 株式会社村田製作所 | 弾性波装置 |
| CN110572136B (zh) * | 2019-09-09 | 2022-11-01 | 杭州左蓝微电子技术有限公司 | 一种叉指换能器 |
-
2020
- 2020-11-03 WO PCT/CN2020/126075 patent/WO2022094743A1/zh unknown
- 2020-11-03 CN CN202080103518.1A patent/CN115989635A/zh active Pending
- 2020-11-03 EP EP20960206.9A patent/EP4228155A4/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022094743A1 (zh) | 2022-05-12 |
| EP4228155A4 (en) | 2023-12-20 |
| EP4228155A1 (en) | 2023-08-16 |
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