JPS641974B2 - - Google Patents
Info
- Publication number
- JPS641974B2 JPS641974B2 JP5152179A JP5152179A JPS641974B2 JP S641974 B2 JPS641974 B2 JP S641974B2 JP 5152179 A JP5152179 A JP 5152179A JP 5152179 A JP5152179 A JP 5152179A JP S641974 B2 JPS641974 B2 JP S641974B2
- Authority
- JP
- Japan
- Prior art keywords
- surface acoustic
- acoustic wave
- electrodes
- group
- receiving end
- 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 40
- 239000000758 substrate Substances 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- YZXCQIOLVHGCFP-UHFFFAOYSA-N lead potassium Chemical compound [K].[Pb] YZXCQIOLVHGCFP-UHFFFAOYSA-N 0.000 claims description 2
- 210000004271 bone marrow stromal cell Anatomy 0.000 description 27
- 230000001902 propagating effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- NKZSPGSOXYXWQA-UHFFFAOYSA-N dioxido(oxo)titanium;lead(2+) Chemical compound [Pb+2].[O-][Ti]([O-])=O NKZSPGSOXYXWQA-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6489—Compensation of undesirable effects
- H03H9/6496—Reducing ripple in transfer characteristic
-
- 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
- H03H9/02716—Tilted, fan shaped or slanted grating lines
-
- 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
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02795—Multi-strip couplers as track changers
-
- 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
- H03H9/6403—Programmable filters
-
- 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
- H03H9/6433—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
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 |
|---|---|---|---|
| JP5152179A JPS55687A (en) | 1979-04-27 | 1979-04-27 | Elastic surface wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5152179A JPS55687A (en) | 1979-04-27 | 1979-04-27 | Elastic surface wave filter |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53034584A Division JPS5828177B2 (ja) | 1978-03-24 | 1978-03-24 | 栓蓋付きブリスタ−パック |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55687A JPS55687A (en) | 1980-01-07 |
| JPS641974B2 true JPS641974B2 (enExample) | 1989-01-13 |
Family
ID=12889308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5152179A Granted JPS55687A (en) | 1979-04-27 | 1979-04-27 | Elastic surface wave filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55687A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3246340A1 (de) * | 1982-12-15 | 1984-06-20 | Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt | Vorrichtung zur messung und ueberwachung des fuellstandes eines fluessigkeitsbehaelters |
-
1979
- 1979-04-27 JP JP5152179A patent/JPS55687A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55687A (en) | 1980-01-07 |
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