GB1507458A - Bulk acoustic wave devices - Google Patents
Bulk acoustic wave devicesInfo
- Publication number
- GB1507458A GB1507458A GB5263774A GB5263774A GB1507458A GB 1507458 A GB1507458 A GB 1507458A GB 5263774 A GB5263774 A GB 5263774A GB 5263774 A GB5263774 A GB 5263774A GB 1507458 A GB1507458 A GB 1507458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transducers
- medium
- layer
- transducer arrangement
- 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.)
- Expired
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
- H03H9/30—Time-delay networks
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
1507458 Bulk wave transducers GENERAL ELECTRIC CO Ltd 30 Oct 1975 [5 Dec 1974] 52637/74 Heading H3U A bulk wave transducer arrangement, on an acoustic wave propagating medium 1, comprises a plurality of series-connected transducers each being formed by a first conductive layer 3, 4 or 5 on medium 1, a piezoelectric layer 7, and a second conductive layer 8 on the piezoelectric layer, the first and second conductive layers of adjacent transducers being interconnected, the arrangement being such that successive transducers in the series produce waves out of phase with each other. As shown, the layer 7 is common to all the twentythree transducers, and the interconnected layers of adjacent transducers and the respective interconnection are constituted by a single conductive area. The medium 1 may be of magnesium aluminate spinel and constitutes a delay line; the twenty-three waves may be reflected in the medium to return to the transducer arrangement which may thus constitute both input and output ports; alternatively there may be provided a second transducer arrangement with the same phase relation between adjacent transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5263774A GB1507458A (en) | 1975-10-30 | 1975-10-30 | Bulk acoustic wave devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5263774A GB1507458A (en) | 1975-10-30 | 1975-10-30 | Bulk acoustic wave devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1507458A true GB1507458A (en) | 1978-04-12 |
Family
ID=10464697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5263774A Expired GB1507458A (en) | 1975-10-30 | 1975-10-30 | Bulk acoustic wave devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1507458A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5086283A (en) * | 1989-12-22 | 1992-02-04 | Teledyne Industries, Inc. | Dipole transducer array for bulk acoustic wave delay device |
| US7656236B2 (en) | 2007-05-15 | 2010-02-02 | Teledyne Wireless, Llc | Noise canceling technique for frequency synthesizer |
| US8179045B2 (en) | 2008-04-22 | 2012-05-15 | Teledyne Wireless, Llc | Slow wave structure having offset projections comprised of a metal-dielectric composite stack |
| US9202660B2 (en) | 2013-03-13 | 2015-12-01 | Teledyne Wireless, Llc | Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes |
-
1975
- 1975-10-30 GB GB5263774A patent/GB1507458A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5086283A (en) * | 1989-12-22 | 1992-02-04 | Teledyne Industries, Inc. | Dipole transducer array for bulk acoustic wave delay device |
| US7656236B2 (en) | 2007-05-15 | 2010-02-02 | Teledyne Wireless, Llc | Noise canceling technique for frequency synthesizer |
| US8179045B2 (en) | 2008-04-22 | 2012-05-15 | Teledyne Wireless, Llc | Slow wave structure having offset projections comprised of a metal-dielectric composite stack |
| US9202660B2 (en) | 2013-03-13 | 2015-12-01 | Teledyne Wireless, Llc | Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |