JPS55115712A - Elastic surface wave filter - Google Patents

Elastic surface wave filter

Info

Publication number
JPS55115712A
JPS55115712A JP2400179A JP2400179A JPS55115712A JP S55115712 A JPS55115712 A JP S55115712A JP 2400179 A JP2400179 A JP 2400179A JP 2400179 A JP2400179 A JP 2400179A JP S55115712 A JPS55115712 A JP S55115712A
Authority
JP
Japan
Prior art keywords
elastic surface
segments
input
output transducers
wave filter
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.)
Granted
Application number
JP2400179A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6150536B2 (enrdf_load_stackoverflow
Inventor
Katsuhide Tsukamoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2400179A priority Critical patent/JPS55115712A/ja
Publication of JPS55115712A publication Critical patent/JPS55115712A/ja
Publication of JPS6150536B2 publication Critical patent/JPS6150536B2/ja
Granted 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 elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6489—Compensation of undesirable effects
    • H03H9/6496—Reducing ripple in transfer characteristic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H03H9/0285—Means for compensation or elimination of undesirable effects of reflections of triple transit echo
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP2400179A 1979-02-28 1979-02-28 Elastic surface wave filter Granted JPS55115712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2400179A JPS55115712A (en) 1979-02-28 1979-02-28 Elastic surface wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2400179A JPS55115712A (en) 1979-02-28 1979-02-28 Elastic surface wave filter

Publications (2)

Publication Number Publication Date
JPS55115712A true JPS55115712A (en) 1980-09-05
JPS6150536B2 JPS6150536B2 (enrdf_load_stackoverflow) 1986-11-05

Family

ID=12126321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2400179A Granted JPS55115712A (en) 1979-02-28 1979-02-28 Elastic surface wave filter

Country Status (1)

Country Link
JP (1) JPS55115712A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0782255A3 (en) * 1995-12-28 1998-01-14 Murata Manufacturing Co., Ltd. Longitudinal coupling type surface acoustic wave resonator filter
JP2003501934A (ja) * 1999-06-03 2003-01-14 テレ フィルター ツヴァイクニーダーラッスング デア ドーヴァー ジャーマニー ゲゼルシャフト ミット ベシュレンクテル ハフツング 音響表面波フィルタ
JP2006261964A (ja) * 2005-03-16 2006-09-28 Epson Toyocom Corp 弾性表面波フィルタ
JP2016517190A (ja) * 2012-12-13 2016-06-09 エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ 平坦化された挿入損失を有する電子音響バンドパスフィルタ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5437553A (en) * 1977-08-29 1979-03-20 Matsushita Electric Ind Co Ltd Elastic surface-wave filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5437553A (en) * 1977-08-29 1979-03-20 Matsushita Electric Ind Co Ltd Elastic surface-wave filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0782255A3 (en) * 1995-12-28 1998-01-14 Murata Manufacturing Co., Ltd. Longitudinal coupling type surface acoustic wave resonator filter
JP2003501934A (ja) * 1999-06-03 2003-01-14 テレ フィルター ツヴァイクニーダーラッスング デア ドーヴァー ジャーマニー ゲゼルシャフト ミット ベシュレンクテル ハフツング 音響表面波フィルタ
JP2006261964A (ja) * 2005-03-16 2006-09-28 Epson Toyocom Corp 弾性表面波フィルタ
JP2016517190A (ja) * 2012-12-13 2016-06-09 エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ 平坦化された挿入損失を有する電子音響バンドパスフィルタ

Also Published As

Publication number Publication date
JPS6150536B2 (enrdf_load_stackoverflow) 1986-11-05

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