JPH0485920U - - Google Patents
Info
- Publication number
- JPH0485920U JPH0485920U JP12884090U JP12884090U JPH0485920U JP H0485920 U JPH0485920 U JP H0485920U JP 12884090 U JP12884090 U JP 12884090U JP 12884090 U JP12884090 U JP 12884090U JP H0485920 U JPH0485920 U JP H0485920U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic wave
- electrode forming
- wave filter
- electrode
- 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
- 238000010897 surface acoustic wave method Methods 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案の一実施例の要部を示す概略斜
視図、第２図は従来例の要部を示す概略斜視図、
第３図は一実施例の要部断面図である。
１，１１……圧電体基板、１ａ，１１ｂ……表
面、１１ａ……傾斜面、１ｂ，１１ｃ……側面、
２……入力電極、３……出力電極、４……弾性表
面波、５……反射波。
FIG. 1 is a schematic perspective view showing the main parts of an embodiment of the present invention, FIG. 2 is a schematic perspective view showing the main parts of a conventional example,
FIG. 3 is a sectional view of a main part of one embodiment. 1, 11...Piezoelectric substrate, 1a, 11b...Surface, 11a...Slanted surface, 1b, 11c...Side surface,
2...Input electrode, 3...Output electrode, 4...Surface acoustic wave, 5...Reflected wave.
Claims (1)
電極形成面となし、該電極形成面に入力電極及び
出力電極を形成してなる弾性表面波フイルタにお
いて、 前記電極形成面と隣り合い且つ少なくとも弾性
表面波の伝搬方向に存在する面と、前記電極形成
面とのなす角度が、所定角度以上の鈍角となるよ
うに前記圧電体基板を形成した、 ことを特徴とする弾性表面波フイルタ。 (2) 前記電極形成面と隣り合う面は、前記電極
形成面に対する垂直方向には、少なくとも中心周
波数の二波長以上の距離に亙つて形成されている
ことを特徴とする請求項(1)記載の弾性表面波フ
イルタ。[Claims for Utility Model Registration] (1) A surface acoustic wave filter in which one surface of a piezoelectric substrate having a predetermined thickness is used as an electrode formation surface, and input electrodes and output electrodes are formed on the electrode formation surface. The piezoelectric substrate is formed such that the angle between the electrode forming surface and a surface adjacent to the electrode forming surface and existing at least in the propagation direction of the surface acoustic wave is an obtuse angle of a predetermined angle or more. A surface acoustic wave filter characterized by: (2) The surface adjacent to the electrode forming surface is formed over a distance of at least two wavelengths or more of the center frequency in a direction perpendicular to the electrode forming surface. surface acoustic wave filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12884090U JPH0485920U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12884090U JPH0485920U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485920U true JPH0485920U (en) | 1992-07-27 |
Family
ID=31876278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12884090U Pending JPH0485920U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2026008701A (en) * | 2024-06-27 | 2026-01-19 | 京セラ株式会社 | Acoustic wave devices, communication devices, piezoelectric substrates |
-
1990
- 1990-11-30 JP JP12884090U patent/JPH0485920U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2026008701A (en) * | 2024-06-27 | 2026-01-19 | 京セラ株式会社 | Acoustic wave devices, communication devices, piezoelectric substrates |
| JP2026008700A (en) * | 2024-06-27 | 2026-01-19 | 京セラ株式会社 | Acoustic wave devices, communication devices, piezoelectric substrates |