JPS5757020A - Surface acoustic wave filter - Google Patents
Surface acoustic wave filterInfo
- Publication number
- JPS5757020A JPS5757020A JP13258680A JP13258680A JPS5757020A JP S5757020 A JPS5757020 A JP S5757020A JP 13258680 A JP13258680 A JP 13258680A JP 13258680 A JP13258680 A JP 13258680A JP S5757020 A JPS5757020 A JP S5757020A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- metallic
- pads
- acoustic wave
- 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.)
- Pending
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
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output transducers
-
- 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
- H03H9/05—Holders; Supports
- H03H9/058—Holders; Supports for surface acoustic wave devices
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
PURPOSE:To lower the crosstalk level and to improve reliability and the yield of manufacturing, by partitioning off an input conductor pad and an output conductor pad from each other with a metallic pattern and connecting the pattern to the stem plate on the reverse of a substrate with a conductor. CONSTITUTION:An input transducer 9, an output transducer 10, a multistrip coupler 11, pads 12 and 13, and a metallic pattern 21 which partitions off pads 12 and 13 from the each other are formed independently on a substrate 8. Pads 12 and 13 and terminals 3-6 are connected by a metallic narrow wire 14, and the pattern 21 and the stem 2 are connected by a metallic narrow wire 22. Thus, the crosstalk level of a filter 23 becomes about -52dB.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13258680A JPS5757020A (en) | 1980-09-24 | 1980-09-24 | Surface acoustic wave filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13258680A JPS5757020A (en) | 1980-09-24 | 1980-09-24 | Surface acoustic wave filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5757020A true JPS5757020A (en) | 1982-04-06 |
Family
ID=15084795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13258680A Pending JPS5757020A (en) | 1980-09-24 | 1980-09-24 | Surface acoustic wave filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5757020A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4795934A (en) * | 1984-02-20 | 1989-01-03 | British Telecommunication, Plc | Mounting of saw devices |
-
1980
- 1980-09-24 JP JP13258680A patent/JPS5757020A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4795934A (en) * | 1984-02-20 | 1989-01-03 | British Telecommunication, Plc | Mounting of saw devices |
US5035035A (en) * | 1984-02-20 | 1991-07-30 | British Telecommunications Plc | Method of mounting saw devices |
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