JPS5680913A - Elastic surface wave element - Google Patents

Elastic surface wave element

Info

Publication number
JPS5680913A
JPS5680913A JP15769379A JP15769379A JPS5680913A JP S5680913 A JPS5680913 A JP S5680913A JP 15769379 A JP15769379 A JP 15769379A JP 15769379 A JP15769379 A JP 15769379A JP S5680913 A JPS5680913 A JP S5680913A
Authority
JP
Japan
Prior art keywords
substrate
mechanical strain
elastic surface
surface wave
electromagnet
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
JP15769379A
Other languages
Japanese (ja)
Inventor
Takeshi Inoue
Nobuaki Shohata
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15769379A priority Critical patent/JPS5680913A/en
Publication of JPS5680913A publication Critical patent/JPS5680913A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/08—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of resonators or networks using surface acoustic waves
    • H03H3/10—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of resonators or networks using surface acoustic waves for obtaining desired frequency or temperature coefficient

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To obtain excellent temperature characteristics of a elastic surface wave element whose surface-wave acoustic velocity can be controlled, by giving a piezoelectric substrate external uniform mechanical strain and by compensating the temperature variation of frequency characteristics by controlling the mechanical strain. CONSTITUTION:On the top surface of piezoelectric substrate 41, comb-shaped electrodes 42 and 42' are aligned in the propagation of a elastic surface wave and magnetostrictive substrate 44 provided with electromagnet 45 is bonded covering the entire reverse surface of substrate 41. Since this substrate 44 is displaced evenly by a DC bias magnetic field provided by electromagnet 45, the compensation of temperature characteristics can be made purely electrical. Namely, uniform mechanical strain, applied externally to substrate 41, is controlled to compensate the temperature variation of frequency characteristics, so that excellent temperature characteristic is obtained.
JP15769379A 1979-12-05 1979-12-05 Elastic surface wave element Pending JPS5680913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15769379A JPS5680913A (en) 1979-12-05 1979-12-05 Elastic surface wave element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15769379A JPS5680913A (en) 1979-12-05 1979-12-05 Elastic surface wave element

Publications (1)

Publication Number Publication Date
JPS5680913A true JPS5680913A (en) 1981-07-02

Family

ID=15655312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15769379A Pending JPS5680913A (en) 1979-12-05 1979-12-05 Elastic surface wave element

Country Status (1)

Country Link
JP (1) JPS5680913A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6049155A (en) * 1997-10-27 2000-04-11 Lucent Technologies Inc. Thermally tunable surface acoustic wave devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6049155A (en) * 1997-10-27 2000-04-11 Lucent Technologies Inc. Thermally tunable surface acoustic wave devices

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