JPS61154021U - - Google Patents
Info
- Publication number
- JPS61154021U JPS61154021U JP3753285U JP3753285U JPS61154021U JP S61154021 U JPS61154021 U JP S61154021U JP 3753285 U JP3753285 U JP 3753285U JP 3753285 U JP3753285 U JP 3753285U JP S61154021 U JPS61154021 U JP S61154021U
- Authority
- JP
- Japan
- Prior art keywords
- surface acoustic
- acoustic wave
- interdigital
- wave resonator
- electrode
- 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 16
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第１図は本考案の弾性表面波共振子の一実施例
を示す平面簡略図、第２図は本考案の弾性表面波
共振子の他の実施例を示す平面簡略図、第３図は
第２図に示した弾性表面波共振子をステムに配置
した状態を示す平面簡略図、第４図は第３図の斜
視図、第５図は第３図に示した弾性表面波共振子
の等価回路図、第６図は第４図に示した弾性表面
波共振子のステム形状の他の実施例を示す斜視図
、第７図は本考案の他の実施例を示す平面図、第
８図は従来の弾性表面波共振子を示す平面図、第
９図は第８図に示した弾性表面波共振子を用いた
発振回路を示すブロツク図、第１０図は第８図に
示す弾性表面波共振子の周波数特性を示す特性曲
線図、第１１図は第１図に示した弾性表面波共振
子をステムに載置した構造を示す簡略図である。
１，４１，５０，６１，７２，８２，１１１…
…圧電基板、２，５１，５２，６２，６３，７３
，７４……インターデイジタル電極、３，５３，
５４，６４，６５，７５，７６……表面波反射器
、５７，５８，５９，６０，６０１，６０２，６
０３，６０４，６０５，６０６，６０７，６０８
……外部取り出し用電極。
FIG. 1 is a simplified plan view showing one embodiment of the surface acoustic wave resonator of the present invention, FIG. 2 is a simplified plan view showing another embodiment of the surface acoustic wave resonator of the present invention, and FIG. A simplified plan view showing the surface acoustic wave resonator shown in Fig. 2 arranged on the stem, Fig. 4 a perspective view of Fig. 3, and Fig. 5 an equivalent of the surface acoustic wave resonator shown in Fig. 3. 6 is a perspective view showing another embodiment of the stem shape of the surface acoustic wave resonator shown in FIG. 4, FIG. 7 is a plan view showing another embodiment of the present invention, and FIG. 8 is a circuit diagram. 9 is a plan view showing a conventional surface acoustic wave resonator, FIG. 9 is a block diagram showing an oscillation circuit using the surface acoustic wave resonator shown in FIG. 8, and FIG. 10 is a plan view showing the surface acoustic wave resonator shown in FIG. 8. FIG. 11 is a characteristic curve diagram showing the frequency characteristics of a resonator, and is a simplified diagram showing a structure in which the surface acoustic wave resonator shown in FIG. 1 is mounted on a stem. 1, 41, 50, 61, 72, 82, 111...
...Piezoelectric substrate, 2, 51, 52, 62, 63, 73
,74... Interdigital electrode, 3,53,
54, 64, 65, 75, 76...Surface wave reflector, 57, 58, 59, 60, 601, 602, 6
03,604,605,606,607,608
...Electrode for external extraction.
Claims (1)
電基板の一主面上に構成された複数のくし歯電極
が交差してなる少なくとも２組のインターデイジ
タル電極と、この圧電基板の一主面上に構成され
かつこの少なくとも２組のインターデイジタル電
極を挾むように構成された複数の表面波反射器と
からなる弾性表面波共振子において、前記各イン
ターデイジタル電極は、前記インターデイジタル
電極に隣接する前記表面波反射器と電気的に接続
したことを特徴とする弾性表面波共振子。 (2) 前記表面波反射器の外部取り出し電極は、
前記インターデイジタル電極の外部取り出し電極
が設けられているのと同じ側に設けられているこ
とを特徴とする実用新案登録請求の範囲第１項記
載の弾性表面波共振子。 (3) 前記表面波反射器を短絡するブスバーの両
側を互い違いに取り除き、電気的にコイルを構成
し前記ブスバーの片側に電気的に接続された外部
取り出し電極が配置されていることを特徴とする
実用新越登録請求の範囲第１項記載の弾性表面波
共振子。[Claims for Utility Model Registration] (1) A piezoelectric substrate that propagates surface acoustic waves, and at least two sets of interdigital electrodes formed by intersecting a plurality of comb-shaped electrodes formed on one principal surface of the piezoelectric substrate. and a plurality of surface acoustic wave reflectors configured on one main surface of the piezoelectric substrate and sandwiching the at least two sets of interdigital electrodes, each of the interdigital electrodes having a , a surface acoustic wave resonator, characterized in that the interdigital electrode is electrically connected to the surface acoustic wave reflector adjacent to the interdigital electrode. (2) The external extraction electrode of the surface wave reflector is
The surface acoustic wave resonator according to claim 1, wherein the surface acoustic wave resonator is provided on the same side as the external extraction electrode of the interdigital electrode. (3) Both sides of the bus bar that short-circuits the surface wave reflector are removed alternately, and an external extraction electrode that electrically forms a coil and is electrically connected to one side of the bus bar is arranged. A surface acoustic wave resonator according to claim 1 of the Shin-Etsu Practical Registered Claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3753285U JPS61154021U (en) | 1985-03-18 | 1985-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3753285U JPS61154021U (en) | 1985-03-18 | 1985-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61154021U true JPS61154021U (en) | 1986-09-24 |
Family
ID=30543700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3753285U Pending JPS61154021U (en) | 1985-03-18 | 1985-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61154021U (en) |
-
1985
- 1985-03-18 JP JP3753285U patent/JPS61154021U/ja active Pending
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