JPH021403B2 - - Google Patents
Info
- Publication number
- JPH021403B2 JPH021403B2 JP55036072A JP3607280A JPH021403B2 JP H021403 B2 JPH021403 B2 JP H021403B2 JP 55036072 A JP55036072 A JP 55036072A JP 3607280 A JP3607280 A JP 3607280A JP H021403 B2 JPH021403 B2 JP H021403B2
- Authority
- JP
- Japan
- Prior art keywords
- surface acoustic
- electrode fingers
- acoustic wave
- electrode
- circuit device
- 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 claims description 52
- 239000000758 substrate Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 11
- 239000010409 thin film Substances 0.000 claims description 7
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 230000001902 propagating effect Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 description 17
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 229910013641 LiNbO 3 Inorganic materials 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
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect 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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/643—Means for obtaining a particular transfer characteristic the transfer characteristic being determined by reflective or coupling array characteristics
-
- 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
-
- 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
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02881—Means for compensation or elimination of undesirable effects of diffraction of wave beam
-
- 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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14517—Means for weighting
-
- 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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14544—Transducers of particular shape or position
- H03H9/14564—Shifted fingers transducers
- H03H9/14567—Stepped-fan shaped transducers
-
- 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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14544—Transducers of particular shape or position
- H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3607280A JPS56132807A (en) | 1980-03-24 | 1980-03-24 | Surface wave circuit equipment |
| US06/245,748 US4365220A (en) | 1980-03-24 | 1981-03-20 | Surface wave circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3607280A JPS56132807A (en) | 1980-03-24 | 1980-03-24 | Surface wave circuit equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56132807A JPS56132807A (en) | 1981-10-17 |
| JPH021403B2 true JPH021403B2 (en, 2012) | 1990-01-11 |
Family
ID=12459526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3607280A Granted JPS56132807A (en) | 1980-03-24 | 1980-03-24 | Surface wave circuit equipment |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4365220A (en, 2012) |
| JP (1) | JPS56132807A (en, 2012) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4618841A (en) * | 1982-08-12 | 1986-10-21 | Siemens Aktiengesellschaft | Electronic component functioning with reflected acoustic waves |
| DE3404618A1 (de) * | 1984-02-09 | 1985-08-14 | Siemens AG, 1000 Berlin und 8000 München | Mit reflektierten akustischen wellen arbeitendes elektronik-bauelement |
| DE3314725A1 (de) * | 1983-04-22 | 1984-10-25 | Siemens AG, 1000 Berlin und 8000 München | Oberflaechenwellen-resonatorfilter |
| GB2159678A (en) * | 1984-05-31 | 1985-12-04 | Philips Electronic Associated | Surface acoustic wave device |
| GB2160379A (en) * | 1984-06-15 | 1985-12-18 | Philips Electronic Associated | Surface-propagating acoustic wave device |
| FR2638047B1 (en, 2012) * | 1988-10-14 | 1990-11-23 | Thomson Csf | |
| EP0367181B1 (en) * | 1988-10-31 | 1994-04-20 | Hitachi, Ltd. | Surface acoustic wave filter device |
| JP4654271B2 (ja) | 2008-06-25 | 2011-03-16 | 日本電波工業株式会社 | トランスバーサル型フィルタ |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1355418A (en) * | 1971-05-24 | 1974-06-05 | Mullard Ltd | Acoustic surface wave devices |
| US4160963A (en) * | 1977-07-21 | 1979-07-10 | Texas Instruments Incorporated | Plural supply path acoustic surface wave device |
-
1980
- 1980-03-24 JP JP3607280A patent/JPS56132807A/ja active Granted
-
1981
- 1981-03-20 US US06/245,748 patent/US4365220A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56132807A (en) | 1981-10-17 |
| US4365220A (en) | 1982-12-21 |
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