JPS6121133U - surface acoustic wave filter - Google Patents

surface acoustic wave filter

Info

Publication number
JPS6121133U
JPS6121133U JP10379984U JP10379984U JPS6121133U JP S6121133 U JPS6121133 U JP S6121133U JP 10379984 U JP10379984 U JP 10379984U JP 10379984 U JP10379984 U JP 10379984U JP S6121133 U JPS6121133 U JP S6121133U
Authority
JP
Japan
Prior art keywords
surface acoustic
acoustic wave
wave filter
electrical signals
waves
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
JP10379984U
Other languages
Japanese (ja)
Inventor
信義 坂本
清 長井
Original Assignee
沖電気工業株式会社
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 by 沖電気工業株式会社 filed Critical 沖電気工業株式会社
Priority to JP10379984U priority Critical patent/JPS6121133U/en
Publication of JPS6121133U publication Critical patent/JPS6121133U/en
Pending legal-status Critical Current

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】[Brief explanation of drawings]

第１図は本考案の第１の実施例を示す構成図、第２図は
本考案の第２の実施例を示す構成図、第３図は本考案の
第３の実施例を示す構成図、第４図は本考案の第４の実
施例を示す構成図、第５図は従来の弾性表面波フィルタ
を示す構成図である。 １０・・・電気入力（出力）端子、１１〜１４・・・電
気入力（出力）弾性表面波変換器、２０・・・電気出力
（入力）端子、２１〜２５・・・電気出力（入力）弾性
表面波変換器、３０・・・弾性表面波、４０・・・圧電
基板。Fig. 1 is a block diagram showing a first embodiment of the present invention, Fig. 2 is a block diagram showing a second embodiment of the present invention, and Fig. 3 is a block diagram showing a third embodiment of the present invention. , FIG. 4 is a block diagram showing a fourth embodiment of the present invention, and FIG. 5 is a block diagram showing a conventional surface acoustic wave filter. 10... Electrical input (output) terminal, 11-14... Electrical input (output) surface acoustic wave transducer, 20... Electrical output (input) terminal, 21-25... Electrical output (input) Surface acoustic wave transducer, 30... surface acoustic wave, 40... piezoelectric substrate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電気信号を弾性表面波に、また弾性表面波を電気信号に
変換するすだれ状電極を有する弾性表面波変換器を複数
個所定間隔で圧電基板上に設けた弾性表面波フィルタに
おいて、前記弾性表面波変換器の弾性表面波伝搬路長差
が前記所定間隔に対してλ／４（λは弾性表面波の波長
）だけずれた配置を含むことを特徴とする弾性表面波フ
ィルタ。In a surface acoustic wave filter in which a plurality of surface acoustic wave transducers having interdigitated electrodes for converting electrical signals into surface acoustic waves and surface acoustic waves into electrical signals are provided on a piezoelectric substrate at predetermined intervals, the surface acoustic wave A surface acoustic wave filter characterized in that the surface acoustic wave propagation path length difference of the transducer includes an arrangement shifted by λ/4 (λ is the wavelength of the surface acoustic wave) with respect to the predetermined interval.
JP10379984U 1984-07-11 1984-07-11 surface acoustic wave filter Pending JPS6121133U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10379984U JPS6121133U (en) 1984-07-11 1984-07-11 surface acoustic wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10379984U JPS6121133U (en) 1984-07-11 1984-07-11 surface acoustic wave filter

Publications (1)

Publication Number Publication Date
JPS6121133U true JPS6121133U (en) 1986-02-07

Family

ID=30663172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10379984U Pending JPS6121133U (en) 1984-07-11 1984-07-11 surface acoustic wave filter

Country Status (1)

Country Link
JP (1) JPS6121133U (en)

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