JPS544548A - Elastic surface-wave filter - Google Patents

Elastic surface-wave filter

Info

Publication number
JPS544548A
JPS544548A JP7030677A JP7030677A JPS544548A JP S544548 A JPS544548 A JP S544548A JP 7030677 A JP7030677 A JP 7030677A JP 7030677 A JP7030677 A JP 7030677A JP S544548 A JPS544548 A JP S544548A
Authority
JP
Japan
Prior art keywords
elastic surface
wave filter
filter
smakk
ripple
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
JP7030677A
Other languages
English (en)
Japanese (ja)
Other versions
JPS624890B2 (enrdf_load_stackoverflow
Inventor
Katsuhide Tsukamoto
Hiroshi Yamazoe
Shigeru Yoshida
Yoshitaka Yoshikawa
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 JP7030677A priority Critical patent/JPS544548A/ja
Publication of JPS544548A publication Critical patent/JPS544548A/ja
Publication of JPS624890B2 publication Critical patent/JPS624890B2/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
    • H03H9/125—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
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers
    • 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
    • H03H9/14558—Slanted, tapered or fan shaped transducers
    • 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
    • H03H9/14594—Plan-rotated or plan-tilted transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP7030677A 1977-06-13 1977-06-13 Elastic surface-wave filter Granted JPS544548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7030677A JPS544548A (en) 1977-06-13 1977-06-13 Elastic surface-wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7030677A JPS544548A (en) 1977-06-13 1977-06-13 Elastic surface-wave filter

Publications (2)

Publication Number Publication Date
JPS544548A true JPS544548A (en) 1979-01-13
JPS624890B2 JPS624890B2 (enrdf_load_stackoverflow) 1987-02-02

Family

ID=13427635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7030677A Granted JPS544548A (en) 1977-06-13 1977-06-13 Elastic surface-wave filter

Country Status (1)

Country Link
JP (1) JPS544548A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121995A (ja) * 1991-10-30 1993-05-18 Mitsubishi Electric Corp 弾性表面波回路装置
JP2012199670A (ja) * 2011-03-18 2012-10-18 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934256A (enrdf_load_stackoverflow) * 1972-07-27 1974-03-29
JPS5740683A (en) * 1980-08-22 1982-03-06 Seiko Instr & Electronics Ltd Digital type electronic watch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934256A (enrdf_load_stackoverflow) * 1972-07-27 1974-03-29
JPS5740683A (en) * 1980-08-22 1982-03-06 Seiko Instr & Electronics Ltd Digital type electronic watch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05121995A (ja) * 1991-10-30 1993-05-18 Mitsubishi Electric Corp 弾性表面波回路装置
JP2012199670A (ja) * 2011-03-18 2012-10-18 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ
US9190980B2 (en) 2011-03-18 2015-11-17 Nihon Dempa Kogyo Co., Ltd. Elastic wave filter

Also Published As

Publication number Publication date
JPS624890B2 (enrdf_load_stackoverflow) 1987-02-02

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