CN113708738B - 一种低线性相位扇形结构的声表滤波器 - Google Patents
一种低线性相位扇形结构的声表滤波器 Download PDFInfo
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- CN113708738B CN113708738B CN202110956615.1A CN202110956615A CN113708738B CN 113708738 B CN113708738 B CN 113708738B CN 202110956615 A CN202110956615 A CN 202110956615A CN 113708738 B CN113708738 B CN 113708738B
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- transducer
- matching circuit
- peripheral matching
- input
- surface filter
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 239000010955 niobium Substances 0.000 claims abstract description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000010897 surface acoustic wave method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
-
- 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
- H03H9/02716—Tilted, fan shaped or slanted 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
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
-
- 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
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
-
- 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
- H03H9/6406—Filters characterised by a particular frequency characteristic
- H03H9/6413—SAW comb filters
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Description
基片材料 | (128°-LN铌酸锂) |
薄膜材料 | 铝 |
膜厚 | 200nm |
输入换能器(IDT)分节数 | 分七节,IDT电容加权结构3-1-3 |
孔径W/(mm) | 6.08 |
输出换能器(IDT)分节数 | 分七节,IDT电容加权结构3-1-3 |
占空比(指条和指条间隙比例) | 1:1 |
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110956615.1A CN113708738B (zh) | 2021-08-19 | 2021-08-19 | 一种低线性相位扇形结构的声表滤波器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110956615.1A CN113708738B (zh) | 2021-08-19 | 2021-08-19 | 一种低线性相位扇形结构的声表滤波器 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113708738A CN113708738A (zh) | 2021-11-26 |
CN113708738B true CN113708738B (zh) | 2024-05-28 |
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CN202110956615.1A Active CN113708738B (zh) | 2021-08-19 | 2021-08-19 | 一种低线性相位扇形结构的声表滤波器 |
Country Status (1)
Country | Link |
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CN (1) | CN113708738B (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201263139Y (zh) * | 2008-07-04 | 2009-06-24 | 无锡市好达电子有限公司 | 双通道声表面波滤波器 |
CN103368522A (zh) * | 2013-07-30 | 2013-10-23 | 四川九洲空管科技有限责任公司 | 一种能应用于l波段的射频声表面波延迟线 |
CN104333345A (zh) * | 2014-10-14 | 2015-02-04 | 北京中讯四方科技股份有限公司 | 宽带短延时声表面波延迟线 |
CN105141279A (zh) * | 2015-08-05 | 2015-12-09 | 北京中讯四方科技股份有限公司 | 一种改变扇形声表面波滤波器带宽的方法 |
CN105406834A (zh) * | 2015-11-19 | 2016-03-16 | 北京中讯四方科技股份有限公司 | 一种基于电容加权的扇形单相单向换能器声表滤波器 |
CN112422099A (zh) * | 2020-11-25 | 2021-02-26 | 成都燎原星光电子有限责任公司 | 宽带低损耗声表面波滤波器芯片结构 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013182229A1 (en) * | 2012-06-05 | 2013-12-12 | Epcos Ag | Saw filter with improved stop band suppression |
-
2021
- 2021-08-19 CN CN202110956615.1A patent/CN113708738B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201263139Y (zh) * | 2008-07-04 | 2009-06-24 | 无锡市好达电子有限公司 | 双通道声表面波滤波器 |
CN103368522A (zh) * | 2013-07-30 | 2013-10-23 | 四川九洲空管科技有限责任公司 | 一种能应用于l波段的射频声表面波延迟线 |
CN104333345A (zh) * | 2014-10-14 | 2015-02-04 | 北京中讯四方科技股份有限公司 | 宽带短延时声表面波延迟线 |
CN105141279A (zh) * | 2015-08-05 | 2015-12-09 | 北京中讯四方科技股份有限公司 | 一种改变扇形声表面波滤波器带宽的方法 |
CN105406834A (zh) * | 2015-11-19 | 2016-03-16 | 北京中讯四方科技股份有限公司 | 一种基于电容加权的扇形单相单向换能器声表滤波器 |
CN112422099A (zh) * | 2020-11-25 | 2021-02-26 | 成都燎原星光电子有限责任公司 | 宽带低损耗声表面波滤波器芯片结构 |
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CN113708738A (zh) | 2021-11-26 |
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Effective date of registration: 20220609 Address after: No.23 Xiyong Avenue, Shapingba District, Chongqing 401332 Applicant after: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION CHONGQING ACOUSTIC-OPTIC-ELECTRONIC CO.,LTD. Address before: 400060 No. 14, Huayuan Road, Nan'an District, Chongqing Applicant before: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO.26 Research Institute |
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Address after: No.23 Xiyong Avenue, Shapingba District, Chongqing 401332 Patentee after: CETC Chip Technology (Group) Co.,Ltd. Country or region after: China Address before: No.23 Xiyong Avenue, Shapingba District, Chongqing 401332 Patentee before: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION CHONGQING ACOUSTIC-OPTIC-ELECTRONIC CO.,LTD. Country or region before: China |