JPS643215U - - Google Patents
Info
- Publication number
- JPS643215U JPS643215U JP9501787U JP9501787U JPS643215U JP S643215 U JPS643215 U JP S643215U JP 9501787 U JP9501787 U JP 9501787U JP 9501787 U JP9501787 U JP 9501787U JP S643215 U JPS643215 U JP S643215U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric filter
- piezoelectric
- matching buffer
- buffer capacitor
- piezoelectric substrate
- 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
- 239000003990 capacitor Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Description
第1図は本考案の一実施例の圧電フイルタの主
要要素の分解斜視図、第2図は第1図に示すA方
向から見た圧電フイルタの模式的外観図、第3図
は第1図に示すB方向から見た圧電フイルタの模
式的外観図、第4図は第1図に示すC方向から見
た圧電フイルタの模式的外観図、第5図は本考案
の一実施例の圧電フイルタの電気回路図、第6図
は従来の圧電フイルタの一例の主要要素の分解斜
視図、第7図は第6図に示すA方向から見た圧電
フイルタの模式的外観図、第8図は第6図に示す
B方向から見た圧電フイルタの模式的外観図、第
9図は第6図に示すC方向から見た圧電フイルタ
の模式的外観図、第10図は第6図に示す圧電フ
イルタの電気回路図である。
符号の説明、1……圧電フイルタ、2,3,7
……銅箔のパターン、4,5,8……スルーホー
ル、6……基板、11,12,13,14,15
,16,18……電極、17……外部コンデンサ
接続用の電極、19……圧電基板、21,22,
23,26……銅箔のパターン、24……スルー
ホール、25……基板、31,32……接着剤層
、33,34,35……金属被覆層、C……整合
用バツフアコンデンサ。
Fig. 1 is an exploded perspective view of the main elements of a piezoelectric filter according to an embodiment of the present invention, Fig. 2 is a schematic external view of the piezoelectric filter seen from direction A shown in Fig. 1, and Fig. 3 is the same as Fig. 1. 4 is a schematic external view of the piezoelectric filter seen from direction B shown in FIG. 1, FIG. 5 is a schematic external view of the piezoelectric filter seen from direction C shown in FIG. 6 is an exploded perspective view of the main elements of an example of a conventional piezoelectric filter, FIG. 7 is a schematic external view of the piezoelectric filter seen from direction A shown in FIG. 6, and FIG. 6 is a schematic external view of the piezoelectric filter seen from direction B, FIG. 9 is a schematic external view of the piezoelectric filter seen from direction C shown in FIG. 6, and FIG. 10 is a schematic external view of the piezoelectric filter shown in FIG. 6. FIG. Explanation of symbols, 1...Piezoelectric filter, 2, 3, 7
...Copper foil pattern, 4,5,8...Through hole, 6...Substrate, 11,12,13,14,15
, 16, 18... electrode, 17... electrode for external capacitor connection, 19... piezoelectric substrate, 21, 22,
23, 26...Copper foil pattern, 24...Through hole, 25...Substrate, 31, 32...Adhesive layer, 33, 34, 35...Metal coating layer, C...Buffer capacitor for matching.
Claims (1)
電フイルタにおいて、圧電基板には整合用バツフ
アコンデンサ部を形成せずに、外部コンデンサ接
続用電極を形成し、整合用バツフアコンデンサを
外付けできるようにしたことを特徴とする圧電フ
イルタ。 In a piezoelectric filter in which predetermined electrodes are formed on both sides of a piezoelectric substrate, an electrode for connecting an external capacitor is formed on the piezoelectric substrate without forming a matching buffer capacitor portion, and a matching buffer capacitor is externally connected. A piezoelectric filter characterized by being able to
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9501787U JPS643215U (en) | 1987-06-19 | 1987-06-19 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9501787U JPS643215U (en) | 1987-06-19 | 1987-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS643215U true JPS643215U (en) | 1989-01-10 |
Family
ID=31319625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9501787U Pending JPS643215U (en) | 1987-06-19 | 1987-06-19 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643215U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7675404B2 (en) | 2006-07-10 | 2010-03-09 | Toyota Jidosha Kabushiki Kaisha | Indicator for vehicle |
-
1987
- 1987-06-19 JP JP9501787U patent/JPS643215U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7675404B2 (en) | 2006-07-10 | 2010-03-09 | Toyota Jidosha Kabushiki Kaisha | Indicator for vehicle |
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