DE2461664C2 - Vorrichtung auf der Basis der akustischen Oberflächenwellen - Google Patents
Vorrichtung auf der Basis der akustischen OberflächenwellenInfo
- Publication number
- DE2461664C2 DE2461664C2 DE2461664A DE2461664A DE2461664C2 DE 2461664 C2 DE2461664 C2 DE 2461664C2 DE 2461664 A DE2461664 A DE 2461664A DE 2461664 A DE2461664 A DE 2461664A DE 2461664 C2 DE2461664 C2 DE 2461664C2
- Authority
- DE
- Germany
- Prior art keywords
- waves
- wave
- angle
- cutting angle
- cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010897 surface acoustic wave method Methods 0.000 title claims description 5
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 claims description 13
- 230000001902 propagating effect Effects 0.000 claims description 6
- 230000001629 suppression Effects 0.000 claims description 3
- 230000003071 parasitic effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 description 15
- 239000013078 crystal Substances 0.000 description 10
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 230000005684 electric field Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010042674 Swelling Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02559—Characteristics of substrate, e.g. cutting angles of lithium niobate or lithium-tantalate substrates
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/36—Devices for manipulating acoustic surface waves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Materials Engineering (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49000846A JPS5099289A (cs) | 1973-12-28 | 1973-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2461664A1 DE2461664A1 (de) | 1975-07-03 |
| DE2461664C2 true DE2461664C2 (de) | 1984-07-12 |
Family
ID=11484988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2461664A Expired DE2461664C2 (de) | 1973-12-28 | 1974-12-27 | Vorrichtung auf der Basis der akustischen Oberflächenwellen |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5099289A (cs) |
| DE (1) | DE2461664C2 (cs) |
| GB (1) | GB1491250A (cs) |
| NL (1) | NL179326C (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3818537A1 (de) * | 1988-05-31 | 1989-12-07 | Siemens Ag | Lithiumniobat-einkristalle mit kongruenter zusammensetzung, insbesondere fuer oberflaechenwellenanordnungen, und verfahren zu deren herstellung |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1089544A (en) * | 1976-11-09 | 1980-11-11 | Sadao Takahashi | Elastic surface wave device |
| JPS53139951A (en) * | 1977-05-13 | 1978-12-06 | Fujitsu Ltd | Element for elastic surface wave |
| GB2086684B (en) * | 1980-10-08 | 1984-05-10 | Philips Electronic Associated | Surface acoustic wave filters |
| JP6986376B2 (ja) * | 2017-06-27 | 2021-12-22 | ＮＤＫ ＳＡＷ ｄｅｖｉｃｅｓ株式会社 | 弾性表面波素子およびその製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680009A (en) * | 1971-03-18 | 1972-07-25 | Us Air Force | Acoustic surface wave delay line |
-
1973
- 1973-12-28 JP JP49000846A patent/JPS5099289A/ja active Pending
-
1974
- 1974-12-27 DE DE2461664A patent/DE2461664C2/de not_active Expired
- 1974-12-30 NL NLAANVRAGE7416981,A patent/NL179326C/xx not_active IP Right Cessation
- 1974-12-30 GB GB56006/74A patent/GB1491250A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3818537A1 (de) * | 1988-05-31 | 1989-12-07 | Siemens Ag | Lithiumniobat-einkristalle mit kongruenter zusammensetzung, insbesondere fuer oberflaechenwellenanordnungen, und verfahren zu deren herstellung |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7416981A (nl) | 1975-07-01 |
| DE2461664A1 (de) | 1975-07-03 |
| NL179326B (nl) | 1986-03-17 |
| JPS5099289A (cs) | 1975-08-06 |
| NL179326C (nl) | 1986-08-18 |
| GB1491250A (en) | 1977-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8128 | New person/name/address of the agent |
Representative=s name: HENKEL, G., DR.PHIL. FEILER, L., DR.RER.NAT. HAENZ |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8325 | Change of the main classification |
Ipc: H03H 9/145 |
|
| 8331 | Complete revocation |