JPS5657322A - Elastic surface wave comb line filter - Google Patents

Elastic surface wave comb line filter

Info

Publication number
JPS5657322A
JPS5657322A JP13278979A JP13278979A JPS5657322A JP S5657322 A JPS5657322 A JP S5657322A JP 13278979 A JP13278979 A JP 13278979A JP 13278979 A JP13278979 A JP 13278979A JP S5657322 A JPS5657322 A JP S5657322A
Authority
JP
Japan
Prior art keywords
line filter
comb line
connection
surface wave
elastic surface
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
JP13278979A
Other languages
Japanese (ja)
Inventor
Noboru Wakatsuki
Shigeo Tanji
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13278979A priority Critical patent/JPS5657322A/en
Publication of JPS5657322A publication Critical patent/JPS5657322A/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
    • H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
    • H03H9/0542—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a lateral arrangement
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14597—Matching SAW transducers to external electrical circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/25—Constructional features of resonators using surface acoustic waves

Landscapes

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

Abstract

PURPOSE:To realize not only the elimination of the exteral connection but a small size for the comb line filter, by providing the capacitor or the resistance which secures a connection between the input and output transducers onto the substrate. CONSTITUTION:The transducers 2 and 3 are formed on the piezoelectric substrate 1, and then a connection is secured between the electrodes 2a and 3a as well as 2b and 3b of the transducers 2 and 3 to obtain the interdigital capacitors 9 and 10. As a result, the external connection can be eliminated, thus realizing a small size for structure. The resistances can also be used in place of the capacitors 9 and 10 each.
JP13278979A 1979-10-17 1979-10-17 Elastic surface wave comb line filter Pending JPS5657322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13278979A JPS5657322A (en) 1979-10-17 1979-10-17 Elastic surface wave comb line filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13278979A JPS5657322A (en) 1979-10-17 1979-10-17 Elastic surface wave comb line filter

Publications (1)

Publication Number Publication Date
JPS5657322A true JPS5657322A (en) 1981-05-19

Family

ID=15089575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13278979A Pending JPS5657322A (en) 1979-10-17 1979-10-17 Elastic surface wave comb line filter

Country Status (1)

Country Link
JP (1) JPS5657322A (en)

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