GB2018081A - Multiphase surface wave transducer - Google Patents
Multiphase surface wave transducerInfo
- Publication number
- GB2018081A GB2018081A GB7913502A GB7913502A GB2018081A GB 2018081 A GB2018081 A GB 2018081A GB 7913502 A GB7913502 A GB 7913502A GB 7913502 A GB7913502 A GB 7913502A GB 2018081 A GB2018081 A GB 2018081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- surface wave
- wave transducer
- electrodes
- multiphase
- acoustic wave
- 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.)
- Granted
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
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
- H03H9/14508—Polyphase SAW transducers
Abstract
An interdigital transducer for use in a surface acoustic wave device comprising three electrodes (A, B and C) whose fingers (1) are arranged so that a unidirectional fundamental frequency acoustic wave is propagated when two exciting signals substantially in quadrature are respectively applied between two electrodes (A and B) and the third electrode (C). <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7913502A GB2018081B (en) | 1978-02-16 | 1979-04-18 | Multiphase surface wave transducer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB618278 | 1978-02-16 | ||
GB7913502A GB2018081B (en) | 1978-02-16 | 1979-04-18 | Multiphase surface wave transducer |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2018081A true GB2018081A (en) | 1979-10-10 |
GB2018081B GB2018081B (en) | 1982-06-23 |
Family
ID=26240497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7913502A Expired GB2018081B (en) | 1978-02-16 | 1979-04-18 | Multiphase surface wave transducer |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2018081B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4584715A (en) * | 1983-10-14 | 1986-04-22 | U.S. Philips Corporation | Image rejection mixer circuit arrangement |
US5000970A (en) * | 1989-06-30 | 1991-03-19 | Horizons International Foods, Inc. | Process for preparing reheatable french fried potatoes |
-
1979
- 1979-04-18 GB GB7913502A patent/GB2018081B/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4584715A (en) * | 1983-10-14 | 1986-04-22 | U.S. Philips Corporation | Image rejection mixer circuit arrangement |
US5000970A (en) * | 1989-06-30 | 1991-03-19 | Horizons International Foods, Inc. | Process for preparing reheatable french fried potatoes |
Also Published As
Publication number | Publication date |
---|---|
GB2018081B (en) | 1982-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |