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
Application number
JP9501787U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9501787U priority Critical patent/JPS643215U/ja
Publication of JPS643215U publication Critical patent/JPS643215U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧電基板の両面に所定の電極を形成してなる圧
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
JP9501787U 1987-06-19 1987-06-19 Pending JPS643215U (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7675404B2 (en) 2006-07-10 2010-03-09 Toyota Jidosha Kabushiki Kaisha Indicator for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
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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