JPS5462756A - Comb line filter using elastic surface wave filter - Google Patents
Comb line filter using elastic surface wave filterInfo
- Publication number
- JPS5462756A JPS5462756A JP12869977A JP12869977A JPS5462756A JP S5462756 A JPS5462756 A JP S5462756A JP 12869977 A JP12869977 A JP 12869977A JP 12869977 A JP12869977 A JP 12869977A JP S5462756 A JPS5462756 A JP S5462756A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- output
- surface wave
- elastic surface
- converters
- 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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
PURPOSE::To obtain a miniaturized comb line filter without characteristic deterioration by arranging the lst and 2nd output converters on an elastic surface wave propagation path at the same side as an input converter and by mixing electric output signals. CONSTITUTION:On piezoelectric substrate 3, output converters 4 and 5 are arranged at the same side as input converter 2. As a result, it can be prevented that a conductor for the input converter and conductor for the output converter intersect each other, and the electric direct coupling between the input and output is reduced, so the no deterioration in characteristic will occur and shielding will be simplified. Further, since the minimum interval between converters is (a)+(b), its size becomes smaller than a conventional one and the chip size also becomes smaller, so that its cost will be reduced. Electric signal energy extracted by output converters 4 and 5 is much smaller than elastic surface wave energy proparating through substrate 3, so that there will be nor problem even if converter 4 is provided onto the proparation path from input converter 2 to converter 5.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12869977A JPS5462756A (en) | 1977-10-28 | 1977-10-28 | Comb line filter using elastic surface wave filter |
US05/954,124 US4296391A (en) | 1977-10-28 | 1978-10-24 | Surface-acoustic-wave filter for channel selection system of television receiver |
CA314,227A CA1131373A (en) | 1977-10-28 | 1978-10-25 | Surface-acoustic-wave filter for channel selection system of television receiver |
DE19782846510 DE2846510A1 (en) | 1977-10-28 | 1978-10-25 | SURFACE SOUND WAVE FILTER FOR THE CHANNEL SELECTION SYSTEM OF A TELEVISION RECEIVER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12869977A JPS5462756A (en) | 1977-10-28 | 1977-10-28 | Comb line filter using elastic surface wave filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5462756A true JPS5462756A (en) | 1979-05-21 |
Family
ID=14991226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12869977A Pending JPS5462756A (en) | 1977-10-28 | 1977-10-28 | Comb line filter using elastic surface wave filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5462756A (en) |
-
1977
- 1977-10-28 JP JP12869977A patent/JPS5462756A/en active Pending
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