JPS5698923A - Phase shifter for surface wave - Google Patents

Phase shifter for surface wave

Info

Publication number
JPS5698923A
JPS5698923A JP90380A JP90380A JPS5698923A JP S5698923 A JPS5698923 A JP S5698923A JP 90380 A JP90380 A JP 90380A JP 90380 A JP90380 A JP 90380A JP S5698923 A JPS5698923 A JP S5698923A
Authority
JP
Japan
Prior art keywords
electrodes
transducer
electrode fingers
pair
output
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
JP90380A
Other languages
Japanese (ja)
Other versions
JPH0159765B2 (en
Inventor
Koji Toda
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP90380A priority Critical patent/JPS5698923A/en
Publication of JPS5698923A publication Critical patent/JPS5698923A/en
Publication of JPH0159765B2 publication Critical patent/JPH0159765B2/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 devices; Electromechanical resonators
    • H03H9/66—Phase shifters
    • H03H9/68—Phase shifters using surface acoustic waves

Landscapes

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

Abstract

PURPOSE:To keep constant the phase differece of the output of two output transducers over wide regions, by weighting the reed screen type electrodes constituting one output transducer among two sinusoidally. CONSTITUTION:The piezoelectric substrate 1 is provided with an input transducer 3 almost at the center and output transducers 2 and 4 by clipping them. The transducer 3 is formed with reed screen electrodes constituted as interdigital for the comblike electrodes of a pair. The transducer 2 is the reed screen type electrodes in which a pair of comblike electrodes interdigitally constitutes the electrode fingers and the width of overlap of the electrode fingers is equal. The transducer 4 is the electrodes in which a pair of comblike electrodes different from the length of adjacent electrode fingers are constituted so that the electrode fingers oppose each other and the envelope of overlap of the electrode fingers is sinusoidal interdigitally and weighting is given to the fingers.
JP90380A 1980-01-10 1980-01-10 Phase shifter for surface wave Granted JPS5698923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP90380A JPS5698923A (en) 1980-01-10 1980-01-10 Phase shifter for surface wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP90380A JPS5698923A (en) 1980-01-10 1980-01-10 Phase shifter for surface wave

Publications (2)

Publication Number Publication Date
JPS5698923A true JPS5698923A (en) 1981-08-08
JPH0159765B2 JPH0159765B2 (en) 1989-12-19

Family

ID=11486633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP90380A Granted JPS5698923A (en) 1980-01-10 1980-01-10 Phase shifter for surface wave

Country Status (1)

Country Link
JP (1) JPS5698923A (en)

Also Published As

Publication number Publication date
JPH0159765B2 (en) 1989-12-19

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