JPS6129531U - surface acoustic wave device - Google Patents
surface acoustic wave deviceInfo
- Publication number
- JPS6129531U JPS6129531U JP11379884U JP11379884U JPS6129531U JP S6129531 U JPS6129531 U JP S6129531U JP 11379884 U JP11379884 U JP 11379884U JP 11379884 U JP11379884 U JP 11379884U JP S6129531 U JPS6129531 U JP S6129531U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- surface acoustic
- electrode
- wave device
- gap
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【図面の簡単な説明】
第１図は本考案の弾性表面波素子の平面図、第２図およ
び第３図は従来の弾性表面波素子の千面図、第４図は本
考案の実施例を示す平面図、第５図は円弧状のオ，−バ
ーエッチング部による漏れ！荷による帯域内特性の劣化
防止の原理を説明する平面図、第６図は本考案の他の実
施例を示す平面図である。
１１゜゜゜圧電基板、１２．１４・・ベし歯形電極の電
極指、１５・・・ダミー電極、Ｒ−・・円弧状の凹部、
Ｇ・・・ギャップ、Ｐ・・・張出部。[Brief Description of the Drawings] Fig. 1 is a plan view of the surface acoustic wave device of the present invention, Figs. 2 and 3 are 1000-sided views of the conventional surface acoustic wave device, and Fig. 4 is an embodiment of the present invention. Figure 5 is a plan view showing leakage due to the arc-shaped etched area. FIG. 6 is a plan view illustrating the principle of preventing deterioration of in-band characteristics due to loads, and FIG. 6 is a plan view showing another embodiment of the present invention. 11゜゜゜piezoelectric substrate, 12.14... electrode finger of bevel-shaped electrode, 15... dummy electrode, R-... arc-shaped recess,
G...Gap, P...Protrusion.
Claims (1)
前記圧電基板上に形成された少な，くとも一対のくし歯
形電極とを有する弾性表面波素子において、前記電極指
の先端とダミー電極間、または前記電極指の先端とブス
バー間のギャップに隣接する電極指の側面に円弧状の凹
部を形成するとともに、その反対側の側面に張出部を形
成してなることを特徴とする弾性表面波素子。In a surface acoustic wave element having a piezoelectric substrate and at least a pair of comb-shaped electrodes formed on the piezoelectric substrate such that a plurality of parallel electrode fingers intersect with each other, there is a gap between the tips of the electrode fingers and the dummy electrode. , or an elastic surface characterized by forming an arc-shaped recess on the side surface of the electrode finger adjacent to the gap between the tip of the electrode finger and the bus bar, and forming an overhang on the opposite side surface. Wave element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11379884U JPS6129531U (en) | 1984-07-26 | 1984-07-26 | surface acoustic wave device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11379884U JPS6129531U (en) | 1984-07-26 | 1984-07-26 | surface acoustic wave device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6129531U true JPS6129531U (en) | 1986-02-22 |
Family
ID=30672823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11379884U Pending JPS6129531U (en) | 1984-07-26 | 1984-07-26 | surface acoustic wave device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006109591A1 (en) * | 2005-04-08 | 2006-10-19 | Murata Manufacturing Co., Ltd. | Elastic wave element |
| WO2008035525A1 (en) * | 2006-09-22 | 2008-03-27 | Murata Manufacturing Co., Ltd. | Longitudinally coupled resonator type surface acoustic wave filter device |
-
1984
- 1984-07-26 JP JP11379884U patent/JPS6129531U/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006109591A1 (en) * | 2005-04-08 | 2006-10-19 | Murata Manufacturing Co., Ltd. | Elastic wave element |
| JPWO2006109591A1 (en) * | 2005-04-08 | 2008-10-30 | 株式会社村田製作所 | Elastic wave element |
| KR100884209B1 (en) | 2005-04-08 | 2009-02-18 | 가부시키가이샤 무라타 세이사쿠쇼 | Elastic wave element |
| US7501916B2 (en) | 2005-04-08 | 2009-03-10 | Murata Manufacturing Co., Ltd. | Elastic wave device having an electrode finger with a side edge projection |
| JP4650488B2 (en) * | 2005-04-08 | 2011-03-16 | 株式会社村田製作所 | Elastic wave element |
| WO2008035525A1 (en) * | 2006-09-22 | 2008-03-27 | Murata Manufacturing Co., Ltd. | Longitudinally coupled resonator type surface acoustic wave filter device |
| US7479855B2 (en) | 2006-09-22 | 2009-01-20 | Murata Manufacturing Co., Ltd. | Longitudinally-coupled-resonator-type elastic wave filter device |
| JPWO2008035525A1 (en) * | 2006-09-22 | 2010-01-28 | 株式会社村田製作所 | Longitudinal coupled resonator type acoustic wave filter device |
| JP4670956B2 (en) * | 2006-09-22 | 2011-04-13 | 株式会社村田製作所 | Longitudinal coupled resonator type acoustic wave filter device |
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