BE865722A - - Google Patents
Info
- Publication number
- BE865722A BE865722A BE186594A BE186594A BE865722A BE 865722 A BE865722 A BE 865722A BE 186594 A BE186594 A BE 186594A BE 186594 A BE186594 A BE 186594A BE 865722 A BE865722 A BE 865722A
- Authority
- BE
- Belgium
Links
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
- H03H9/46—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
- H03H9/6443—Coupled resonator filters having two acoustic tracks being acoustically coupled
- H03H9/6446—Coupled resonator filters having two acoustic tracks being acoustically coupled by floating multistrip couplers
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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
- H03H9/02236—Details of surface skimming bulk wave 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
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02669—Edge reflection structures, i.e. resonating structures without metallic reflectors, e.g. Bleustein-Gulyaev-Shimizu [BGS], shear horizontal [SH], shear transverse [ST], Love waves 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
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02779—Continuous surface reflective arrays
-
- 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
-
- 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
- H03H9/6436—Coupled resonator filters having one acoustic track only
-
- 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
- H03H9/6459—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting 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
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02645—Waffle-iron or dot arrays
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Details Of Garments (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1480677 | 1977-04-07 | ||
| GB14806/78A GB1583295A (en) | 1977-04-07 | 1978-02-20 | Cases for throwing darts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE865722A true BE865722A (US07321065-20080122-C00126.png) | 1978-10-05 |
Family
ID=26250814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE186594A BE865722A (US07321065-20080122-C00126.png) | 1977-04-07 | 1978-04-05 |
Country Status (9)
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290033A (en) * | 1979-06-04 | 1981-09-15 | Trw Inc. | Shallow bulk acoustic wave devices employing energy trapping |
| JPS5925525B2 (ja) * | 1979-08-31 | 1984-06-19 | 株式会社東芝 | 弾性表面波共振子 |
| JP2547980B2 (ja) * | 1984-01-09 | 1996-10-30 | 日本電波工業 株式会社 | 超音波トランスジユ−サとその製造方法 |
| US4599532A (en) * | 1984-07-05 | 1986-07-08 | Clarion Co., Ltd. | Surface acoustic wave device with anti-reflection electrode structure |
| GB2193060B (en) * | 1986-07-16 | 1991-04-03 | Japan Radio Co Ltd | Surface elastic wave filter |
| US5091051A (en) * | 1986-12-22 | 1992-02-25 | Raytheon Company | Saw device method |
| US5010270A (en) * | 1986-12-22 | 1991-04-23 | Raytheon Company | Saw device |
| US4965479A (en) * | 1987-01-12 | 1990-10-23 | Hewlett-Packard Company | Surface transverse wave resonator |
| FR2619225B1 (fr) * | 1987-08-07 | 1990-05-04 | Tafani Christian | Systeme de detection, de reconnaissance et d'identification a distance. |
| EP0362478B1 (de) * | 1988-09-14 | 1995-05-24 | Siemens Aktiengesellschaft | Akustische Verzögerungsleitung |
| US4933588A (en) * | 1988-12-23 | 1990-06-12 | Raytheon Company | Higher order transverse mode suppression in surface acoustic wave resonators |
| JPH0969751A (ja) * | 1995-08-30 | 1997-03-11 | Murata Mfg Co Ltd | 弾性表面波フィルタ |
| US5986523A (en) * | 1997-08-29 | 1999-11-16 | Murata Manufacturing Co., Ltd. | Edge reflection type longitudinally coupled surface acoustic wave filter |
| JP3289674B2 (ja) * | 1998-05-21 | 2002-06-10 | 株式会社村田製作所 | 表面波フィルタ装置、共用器、通信機装置 |
| JP2000165184A (ja) * | 1998-11-20 | 2000-06-16 | Fujitsu Ltd | 弾性表面波素子 |
| JP3298538B2 (ja) * | 1999-02-16 | 2002-07-02 | 株式会社村田製作所 | 端面反射縦結合型ｓａｗ共振子フィルタ |
| JP3341699B2 (ja) | 1999-02-18 | 2002-11-05 | 株式会社村田製作所 | 端面反射型表面波装置 |
| US6429569B1 (en) | 1999-07-22 | 2002-08-06 | Murata Manufacturing Co., Ltd. | Surface acoustic wave device and communication apparatus |
| JP2001308675A (ja) * | 2000-04-26 | 2001-11-02 | Murata Mfg Co Ltd | 表面波フィルタ及び共用器、通信機装置 |
| DE10117772C2 (de) * | 2001-04-09 | 2003-04-03 | Advalytix Ag | Mischvorrichtung und Mischverfahren für die Durchmischung kleiner Flüssigkeitsmengen |
| JP2010088109A (ja) * | 2008-09-05 | 2010-04-15 | Panasonic Corp | 弾性波素子と、これを用いた電子機器 |
| US7939987B1 (en) * | 2008-10-23 | 2011-05-10 | Triquint Semiconductor, Inc. | Acoustic wave device employing reflective elements for confining elastic energy |
| FR2966307B1 (fr) * | 2010-10-15 | 2013-07-12 | Commissariat Energie Atomique | Filtre a ondes acoustiques comprenant un guidage acoustique integre |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3760204A (en) * | 1972-03-01 | 1973-09-18 | Motorola Inc | Acoustic surface wave resonator |
| GB1451326A (en) * | 1973-02-16 | 1976-09-29 | Nat Res Dev | Acoustic wave devices |
| US4056793A (en) * | 1974-03-15 | 1977-11-01 | Texas Instruments Incorporated | Acoustic waveguide resonator |
| US3886504A (en) * | 1974-05-20 | 1975-05-27 | Texas Instruments Inc | Acoustic surface wave resonator devices |
-
1978
- 1978-02-20 GB GB14806/78A patent/GB1583295A/en not_active Expired
- 1978-03-29 DE DE19782813445 patent/DE2813445A1/de active Pending
- 1978-03-31 US US05/892,116 patent/US4204178A/en not_active Expired - Lifetime
- 1978-04-04 SE SE7803749A patent/SE7803749L/xx unknown
- 1978-04-04 AU AU34763/78A patent/AU3476378A/en active Pending
- 1978-04-05 FR FR7810086A patent/FR2386936A1/fr not_active Withdrawn
- 1978-04-05 BE BE186594A patent/BE865722A/xx unknown
- 1978-04-05 ES ES468556A patent/ES468556A1/es not_active Expired
- 1978-04-07 JP JP4041778A patent/JPS53126243A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU3476378A (en) | 1979-10-11 |
| JPS53126243A (en) | 1978-11-04 |
| US4204178A (en) | 1980-05-20 |
| DE2813445A1 (de) | 1978-10-12 |
| FR2386936A1 (fr) | 1978-11-03 |
| GB1583295A (en) | 1981-01-21 |
| ES468556A1 (es) | 1978-11-16 |
| SE7803749L (sv) | 1978-10-08 |
