JPH0351327B2 - - Google Patents
Info
- Publication number
- JPH0351327B2 JPH0351327B2 JP59080033A JP8003384A JPH0351327B2 JP H0351327 B2 JPH0351327 B2 JP H0351327B2 JP 59080033 A JP59080033 A JP 59080033A JP 8003384 A JP8003384 A JP 8003384A JP H0351327 B2 JPH0351327 B2 JP H0351327B2
- Authority
- JP
- Japan
- Prior art keywords
- interruptions
- metal strips
- wave resonator
- resonator filter
- metal
- 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 - Lifetime
Links
- 238000010897 surface acoustic wave method Methods 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 84
- 239000002184 metal Substances 0.000 claims description 84
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 230000001629 suppression 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
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02685—Grating lines having particular arrangements
- H03H9/02771—Reflector banks
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833314725 DE3314725A1 (de) | 1983-04-22 | 1983-04-22 | Oberflaechenwellen-resonatorfilter |
| DE3314725.6 | 1983-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59207719A JPS59207719A (ja) | 1984-11-24 |
| JPH0351327B2 true JPH0351327B2 (en]) | 1991-08-06 |
Family
ID=6197146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59080033A Granted JPS59207719A (ja) | 1983-04-22 | 1984-04-20 | 表面波共振器フイルタとその製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4623855A (en]) |
| EP (1) | EP0124019B1 (en]) |
| JP (1) | JPS59207719A (en]) |
| AT (1) | ATE48210T1 (en]) |
| DE (2) | DE3314725A1 (en]) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO855284L (no) * | 1985-01-18 | 1986-07-21 | Siemens Ag | Filter som arbeider med akustiske boelger. |
| NO855285L (no) * | 1985-01-22 | 1986-07-23 | Siemens Ag | Filter som arbeider med akustiske boelger. |
| EP0257377B1 (de) * | 1986-08-29 | 1993-02-17 | Siemens Aktiengesellschaft | Oberflächenwellen-Resonatorstruktur mit in Teilstücke unterbrochenen Metallisierungsstreifen von Reflektorfingern |
| DE3731309A1 (de) * | 1987-09-17 | 1989-03-30 | Siemens Ag | Oberflaechenwellenanordnung mit konversionsstruktur zur vermeidung unerwuenschter reflektierter wellen |
| DE4213800A1 (de) * | 1992-04-27 | 1993-10-28 | Siemens Ag | Gewichteter Reflektor für eine Oberflächenwellenanordnung |
| ES2215628T5 (es) * | 1999-04-01 | 2011-11-28 | Dsm Ip Assets B.V. | Aglomerados obtenidos por cristalización. |
| JP3780415B2 (ja) * | 2001-06-12 | 2006-05-31 | 株式会社村田製作所 | 縦結合共振子型弾性表面波フィルタ、およびそれを用いた通信機装置 |
| JP3926633B2 (ja) * | 2001-06-22 | 2007-06-06 | 沖電気工業株式会社 | Ｓａｗデバイス及びその製造方法 |
| US6847272B2 (en) * | 2003-02-28 | 2005-01-25 | Northrop Grumman Corporation | Weighted SAW reflector using distributed acoustic reflective dots |
| EP1813538A3 (en) * | 2006-01-30 | 2008-04-09 | Fujifilm Corporation | Cartridge accomodating case |
| JP4571200B2 (ja) * | 2008-03-10 | 2010-10-27 | 富士通メディアデバイス株式会社 | 弾性波フィルタ |
| JP4766121B2 (ja) * | 2009-02-10 | 2011-09-07 | 株式会社デンソー | 弾性表面波素子、その製造方法およびその共振周波数調整方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952269A (en) | 1975-04-28 | 1976-04-20 | Hughes Aircraft Company | Surface acoustic wave delay line |
| GB1513466A (en) | 1975-09-19 | 1978-06-07 | Mullard Ltd | Acoustic surface wave devices |
| US4155056A (en) * | 1977-08-25 | 1979-05-15 | Bell Telephone Laboratories, Incorporated | Cascaded grating resonator filters with external input-output couplers |
| US4249146A (en) | 1979-02-23 | 1981-02-03 | Trw Inc. | Surface acoustic wave resonators utilizing harmonic frequencies |
| JPS5925525B2 (ja) * | 1979-08-31 | 1984-06-19 | 株式会社東芝 | 弾性表面波共振子 |
| GB2060305B (en) * | 1979-09-20 | 1983-05-25 | Secr Defence | Acoustic wave device including a reflective array |
| JPS56132807A (en) * | 1980-03-24 | 1981-10-17 | Hitachi Ltd | Surface wave circuit equipment |
| US4267534A (en) * | 1980-05-23 | 1981-05-12 | Sperry Corporation | Surface acoustic wave reflectors with weighted arrays of segmented and non-segmented lineal elements |
-
1983
- 1983-04-22 DE DE19833314725 patent/DE3314725A1/de not_active Withdrawn
-
1984
- 1984-04-13 US US06/600,023 patent/US4623855A/en not_active Expired - Lifetime
- 1984-04-17 AT AT84104363T patent/ATE48210T1/de not_active IP Right Cessation
- 1984-04-17 DE DE8484104363T patent/DE3480578D1/de not_active Expired
- 1984-04-17 EP EP84104363A patent/EP0124019B1/de not_active Expired
- 1984-04-20 JP JP59080033A patent/JPS59207719A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3480578D1 (en) | 1989-12-28 |
| DE3314725A1 (de) | 1984-10-25 |
| EP0124019A3 (en) | 1986-05-21 |
| EP0124019B1 (de) | 1989-11-23 |
| ATE48210T1 (de) | 1989-12-15 |
| US4623855A (en) | 1986-11-18 |
| JPS59207719A (ja) | 1984-11-24 |
| EP0124019A2 (de) | 1984-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4204178A (en) | Acoustic wave devices | |
| JPH0351327B2 (en]) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |