JPS56114423A - Elastic surface wave filter - Google Patents

Elastic surface wave filter

Info

Publication number
JPS56114423A
JPS56114423A JP1546380A JP1546380A JPS56114423A JP S56114423 A JPS56114423 A JP S56114423A JP 1546380 A JP1546380 A JP 1546380A JP 1546380 A JP1546380 A JP 1546380A JP S56114423 A JPS56114423 A JP S56114423A
Authority
JP
Japan
Prior art keywords
wave filter
stem
elastic surface
surface wave
frequency characteristic
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
JP1546380A
Other languages
Japanese (ja)
Inventor
Shizuo Tokunaga
Shigeyuki Kita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1546380A priority Critical patent/JPS56114423A/en
Publication of JPS56114423A publication Critical patent/JPS56114423A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/058—Holders; Supports for surface acoustic wave devices
    • H03H9/0585—Holders; Supports for surface acoustic wave devices consisting of an adhesive layer
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and reflections

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To attenuate a bulk wave and elevate the frequency characteristic, by making rough the surface on which a piezoelectric substrate is placed. CONSTITUTION:Both the input electrode 12 and the output electrode 13 are formed on the surface of the piezoelectric substrate 11, and an elastic surface wave filter is constituted. The substrate 11 is made to adhere to the stem through the adhesive agent 14. Since the surface of the stem 15 is formed roughly, a bulk wave which has reached the surface of the stem is attenuated, and the frequency characteristic can be elevated.
JP1546380A 1980-02-13 1980-02-13 Elastic surface wave filter Pending JPS56114423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1546380A JPS56114423A (en) 1980-02-13 1980-02-13 Elastic surface wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1546380A JPS56114423A (en) 1980-02-13 1980-02-13 Elastic surface wave filter

Publications (1)

Publication Number Publication Date
JPS56114423A true JPS56114423A (en) 1981-09-09

Family

ID=11889482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1546380A Pending JPS56114423A (en) 1980-02-13 1980-02-13 Elastic surface wave filter

Country Status (1)

Country Link
JP (1) JPS56114423A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138419U (en) * 1982-03-09 1983-09-17 株式会社東芝 surface acoustic wave device
JPS60192525U (en) * 1984-05-30 1985-12-20 株式会社村田製作所 surface wave device
US9991870B2 (en) 2015-08-25 2018-06-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface acoustic wave (SAW) resonator
US10020796B2 (en) * 2015-08-25 2018-07-10 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface acoustic wave (SAW) resonator
US10090822B2 (en) * 2015-08-25 2018-10-02 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface acoustic wave (SAW) resonator
US10177735B2 (en) 2016-02-29 2019-01-08 Avago Technologies International Sales Pte. Limited Surface acoustic wave (SAW) resonator
US10469056B2 (en) 2015-08-25 2019-11-05 Avago Technologies International Sales Pte. Limited Acoustic filters integrated into single die
US10523178B2 (en) 2015-08-25 2019-12-31 Avago Technologies International Sales Pte. Limited Surface acoustic wave (SAW) resonator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58138419U (en) * 1982-03-09 1983-09-17 株式会社東芝 surface acoustic wave device
JPH0238500Y2 (en) * 1982-03-09 1990-10-17
JPS60192525U (en) * 1984-05-30 1985-12-20 株式会社村田製作所 surface wave device
US9991870B2 (en) 2015-08-25 2018-06-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface acoustic wave (SAW) resonator
US10020796B2 (en) * 2015-08-25 2018-07-10 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface acoustic wave (SAW) resonator
US10090822B2 (en) * 2015-08-25 2018-10-02 Avago Technologies General Ip (Singapore) Pte. Ltd. Surface acoustic wave (SAW) resonator
US10469056B2 (en) 2015-08-25 2019-11-05 Avago Technologies International Sales Pte. Limited Acoustic filters integrated into single die
US10523178B2 (en) 2015-08-25 2019-12-31 Avago Technologies International Sales Pte. Limited Surface acoustic wave (SAW) resonator
US10177735B2 (en) 2016-02-29 2019-01-08 Avago Technologies International Sales Pte. Limited Surface acoustic wave (SAW) resonator

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