JPH0210603B2 - - Google Patents
Info
- Publication number
- JPH0210603B2 JPH0210603B2 JP15024082A JP15024082A JPH0210603B2 JP H0210603 B2 JPH0210603 B2 JP H0210603B2 JP 15024082 A JP15024082 A JP 15024082A JP 15024082 A JP15024082 A JP 15024082A JP H0210603 B2 JPH0210603 B2 JP H0210603B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- approximately
- comb
- width
- surface acoustic
- 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 47
- 239000000758 substrate Substances 0.000 claims description 10
- 230000001902 propagating effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 description 1
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 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
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
- H03H9/0285—Means for compensation or elimination of undesirable effects of reflections of triple transit echo
-
- 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
-
- 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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15024082A JPS5939115A (ja) | 1982-08-30 | 1982-08-30 | 弾性表面波トランスジユ−サ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15024082A JPS5939115A (ja) | 1982-08-30 | 1982-08-30 | 弾性表面波トランスジユ−サ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5939115A JPS5939115A (ja) | 1984-03-03 |
JPH0210603B2 true JPH0210603B2 (en]) | 1990-03-08 |
Family
ID=15492621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15024082A Granted JPS5939115A (ja) | 1982-08-30 | 1982-08-30 | 弾性表面波トランスジユ−サ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939115A (en]) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0814825B2 (ja) * | 1985-11-20 | 1996-02-14 | 日本電気株式会社 | 移動式データ入力システム |
-
1982
- 1982-08-30 JP JP15024082A patent/JPS5939115A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5939115A (ja) | 1984-03-03 |
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