JPS61199927U - - Google Patents
Info
- Publication number
- JPS61199927U JPS61199927U JP8445185U JP8445185U JPS61199927U JP S61199927 U JPS61199927 U JP S61199927U JP 8445185 U JP8445185 U JP 8445185U JP 8445185 U JP8445185 U JP 8445185U JP S61199927 U JPS61199927 U JP S61199927U
- Authority
- JP
- Japan
- Prior art keywords
- bus bar
- electrodes
- protruding
- reflector
- wave device
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案に係る表面波装置の一部破断平
面図、第２図は第１図の表面波装置のリフレクタ
の変形例の平面図、第３図は従来の表面波装置の
平面図、第４図は表面波装置の電極形成方法の説
明図、第５図および第６図は夫々従来の表面波装
置のリフレクタの形成時に発生する抜け残りおよ
びアールの説明図、第７図は片側のバスバーを除
去した従来の表面波装置のリフレクタの一部破断
平面図である。
１１……表面波基板、１２……インターデイジ
タル電極、１３……リフレクタ、１４……シヨー
ト電極、１５ａ，１５ｂ……バスバー、Ｆａ，Ｆ
ｂ，Ｆａ１，Ｆｂ１……フインガー電極、ｇ１，
ｇ２，ｇ３，ｇ４……間隙、Ｄａ１，Ｄｂ１……
ダミー電極。
FIG. 1 is a partially cutaway plan view of a surface wave device according to the present invention, FIG. 2 is a plan view of a modified example of the reflector of the surface wave device shown in FIG. 1, and FIG. 3 is a plan view of a conventional surface wave device. , FIG. 4 is an explanatory diagram of the method for forming electrodes of a surface wave device, FIGS. 5 and 6 are explanatory diagrams of residual holes and radiuses that occur when forming a reflector of a conventional surface wave device, and FIG. FIG. 2 is a partially cutaway plan view of a reflector of a conventional surface acoustic wave device with a bus bar removed. 11...Surface wave substrate, 12...Interdigital electrode, 13...Reflector, 14...Short electrode, 15a, 15b...Bus bar, Fa, F
b, Fa 1 , Fb 1 ... finger electrode, g 1 ,
g 2 , g 3 , g 4 ... gap, Da 1 , Db 1 ...
dummy electrode.
Claims (1)
ジタル電極および上記表面波を反射するリフレク
タが形成されてなる表面波装置において、 インターデイジタル電極は一対のバスバーから
突出するフインガー電極の先端に向かつてバスバ
ーから突出するダミー電極を備えており、リフレ
クタは表面波の伝播路に沿つてその両側にほゞ平
行に配置された一対のバスバーを有し、上記表面
波の伝播路を横断して一方のバスバーから他方の
バスバーに向かつてフインガー電極が突出すると
ともに、他方のバスバーから一方のバスバーに向
かつてフインガー電極が突出し、これらフインガ
ー電極の先端はバスバーから突出するダミー電極
と対向していることを特徴とする表面波装置。[Claims for Utility Model Registration] In a surface acoustic wave device in which interdigital electrodes that generate surface waves and reflectors that reflect the surface waves are formed on a surface acoustic wave substrate, the interdigital electrodes are formed by fingers protruding from a pair of bus bars. The reflector has a dummy electrode protruding from the bus bar toward the tip of the electrode, and the reflector has a pair of bus bars arranged substantially parallel to each other on both sides along the propagation path of the surface wave. Finger electrodes protrude from one bus bar to the other bus bar across the bus bar, and finger electrodes protrude from the other bus bar to the other bus bar, and the tips of these finger electrodes face dummy electrodes protruding from the bus bar. A surface wave device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8445185U JPS61199927U (en) | 1985-06-03 | 1985-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8445185U JPS61199927U (en) | 1985-06-03 | 1985-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61199927U true JPS61199927U (en) | 1986-12-15 |
Family
ID=30633977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8445185U Pending JPS61199927U (en) | 1985-06-03 | 1985-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110114973A (en) * | 2016-12-26 | 2019-08-09 | 株式会社村田制作所 | Acoustic wave device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5887908A (en) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | Electrode construction of surface acoustic wave filter |
-
1985
- 1985-06-03 JP JP8445185U patent/JPS61199927U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5887908A (en) * | 1981-11-20 | 1983-05-25 | Hitachi Ltd | Electrode construction of surface acoustic wave filter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110114973A (en) * | 2016-12-26 | 2019-08-09 | 株式会社村田制作所 | Acoustic wave device |
| US11018650B2 (en) | 2016-12-26 | 2021-05-25 | Murata Manufacturing Co., Ltd. | Acoustic wave device |
| CN110114973B (en) * | 2016-12-26 | 2024-04-26 | 株式会社村田制作所 | Elastic wave device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY114329A (en) | Longitudinally coupled surface acoustic wave resonator filter | |
| JPS61199927U (en) | ||
| JPS61199926U (en) | ||
| JPS5711520A (en) | Elastic surface wave resonator | |
| JPS564916A (en) | Elastic surface wave filter | |
| JPS5976132U (en) | surface acoustic wave transducer | |
| JPS60184319U (en) | surface acoustic wave resonator | |
| JPH01151621U (en) | ||
| JPS6066117U (en) | surface acoustic wave device | |
| JPS6273622U (en) | ||
| JPS641787Y2 (en) | ||
| JPS5976131U (en) | Surface acoustic wave “ro” wave device | |
| JPH0397224U (en) | ||
| JPH02108432U (en) | ||
| JPS6423131U (en) | ||
| JPS59101525U (en) | surface acoustic wave resonator | |
| JPS5850729U (en) | surface acoustic wave filter | |
| JPS58152020U (en) | surface wave resonator | |
| JPH0224622U (en) | ||
| JPS6129531U (en) | surface acoustic wave device | |
| JPS61154021U (en) | ||
| JPS61179825U (en) | ||
| JPS5634217A (en) | Elastic surface wave filter | |
| JPS6275630U (en) | ||
| JPH0386628U (en) |