JPS568914A - Low-frequency dispersed type delay line - Google Patents

Low-frequency dispersed type delay line

Info

Publication number
JPS568914A
JPS568914A JP8395279A JP8395279A JPS568914A JP S568914 A JPS568914 A JP S568914A JP 8395279 A JP8395279 A JP 8395279A JP 8395279 A JP8395279 A JP 8395279A JP S568914 A JPS568914 A JP S568914A
Authority
JP
Japan
Prior art keywords
piezoelectric vibrators
minimum
maximum
thickness
frequency
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
JP8395279A
Other languages
Japanese (ja)
Inventor
Toshio Sudo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8395279A priority Critical patent/JPS568914A/en
Publication of JPS568914A publication Critical patent/JPS568914A/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
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H03H9/44—Frequency dependent delay lines, e.g. dispersive delay lines

Landscapes

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

Abstract

PURPOSE:To make miniaturization possible while realizing application to the low frequency band by using tapered piezoelectric vibrators and a delay medium with bevels. CONSTITUTION:To the mutually-opposite surfaces of delay medium 8 with the bevels varying in propagation distance continuously, tapered piezoelectric vibrators 9 varying in thickness continuously are bonded; input terminals 10 and 10' are connected to one piezoelectric vibrator, and output terminals 11 and 11' to the other. Denoting the maximum thickness and minimum thickness of piezoelectric vibrators 9 as t1 and t2, minimum frequency f1 of the frequency band of those piezoelectric vibrators is K/t1 and maximum frequency f2 is K/t2. When the maximum propagation length and minimum propagation length at the parts where piezoelectric vibrators 9 are bonded to delay medium 8 are denoted as l1 and l2 and the velocity of an acoustic wave propagating is as (v), maximum delay time gamma1 and minimum delay time gamma2 are l1/v and l2/v respectively.
JP8395279A 1979-07-04 1979-07-04 Low-frequency dispersed type delay line Pending JPS568914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8395279A JPS568914A (en) 1979-07-04 1979-07-04 Low-frequency dispersed type delay line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8395279A JPS568914A (en) 1979-07-04 1979-07-04 Low-frequency dispersed type delay line

Publications (1)

Publication Number Publication Date
JPS568914A true JPS568914A (en) 1981-01-29

Family

ID=13816912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8395279A Pending JPS568914A (en) 1979-07-04 1979-07-04 Low-frequency dispersed type delay line

Country Status (1)

Country Link
JP (1) JPS568914A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113349A (en) * 1981-12-25 1983-07-06 Mitsubishi Metal Corp Cubic system boron nitride-base material to be sintered under superhigh pressure for wear resistant cutting tool
JPS58145212A (en) * 1982-02-02 1983-08-30 Clarion Co Ltd Surface acoustic wave device
JPS5941445A (en) * 1982-08-31 1984-03-07 Mitsubishi Metal Corp Cubic boron nitride base high pressure sintered material for cutting tool
JPS5974254A (en) * 1982-10-20 1984-04-26 Mitsubishi Metal Corp Material based on cubic boron nitride sintered under superhigh pressure for cutting tool
JPS60187659A (en) * 1984-12-25 1985-09-25 Mitsubishi Metal Corp Cubic boron nitride-base ultrahigh-pressure sintered material for cutting tool
JPS6267174A (en) * 1985-09-19 1987-03-26 Sumitomo Electric Ind Ltd Production of hard carbon film coated sintered hard alloy
JPS62174380A (en) * 1986-01-27 1987-07-31 Mitsubishi Metal Corp Surface coated sintered hard alloy member for cutting tool
JPS6360280A (en) * 1986-08-29 1988-03-16 Mitsubishi Metal Corp Production of surface-coated tungsten carbide-base sintered hard alloy
WO1991003820A1 (en) * 1989-09-01 1991-03-21 Eev Limited Transmission lines

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58113349A (en) * 1981-12-25 1983-07-06 Mitsubishi Metal Corp Cubic system boron nitride-base material to be sintered under superhigh pressure for wear resistant cutting tool
JPS602379B2 (en) * 1981-12-25 1985-01-21 三菱マテリアル株式会社 Cubic boron nitride-based ultra-high pressure sintered material for cutting and wear-resistant tools
JPS58145212A (en) * 1982-02-02 1983-08-30 Clarion Co Ltd Surface acoustic wave device
JPH043127B2 (en) * 1982-02-02 1992-01-22
JPS5941445A (en) * 1982-08-31 1984-03-07 Mitsubishi Metal Corp Cubic boron nitride base high pressure sintered material for cutting tool
JPS607022B2 (en) * 1982-08-31 1985-02-21 三菱マテリアル株式会社 Cubic boron nitride-based ultra-high pressure sintered material for cutting tools
JPS6023181B2 (en) * 1982-10-20 1985-06-06 三菱マテリアル株式会社 Cubic boron nitride-based ultra-high pressure sintered material for cutting tools
JPS5974254A (en) * 1982-10-20 1984-04-26 Mitsubishi Metal Corp Material based on cubic boron nitride sintered under superhigh pressure for cutting tool
JPS60187659A (en) * 1984-12-25 1985-09-25 Mitsubishi Metal Corp Cubic boron nitride-base ultrahigh-pressure sintered material for cutting tool
JPS6056783B2 (en) * 1984-12-25 1985-12-11 三菱マテリアル株式会社 Cubic boron nitride-based ultra-high pressure sintered material for cutting tools
JPS6267174A (en) * 1985-09-19 1987-03-26 Sumitomo Electric Ind Ltd Production of hard carbon film coated sintered hard alloy
JPS62174380A (en) * 1986-01-27 1987-07-31 Mitsubishi Metal Corp Surface coated sintered hard alloy member for cutting tool
JPS6360280A (en) * 1986-08-29 1988-03-16 Mitsubishi Metal Corp Production of surface-coated tungsten carbide-base sintered hard alloy
WO1991003820A1 (en) * 1989-09-01 1991-03-21 Eev Limited Transmission lines

Similar Documents

Publication Publication Date Title
JPS54844A (en) Elastic surface wave filter
GB1513466A (en) Acoustic surface wave devices
JPS55610A (en) Frequency selection device
JPS568914A (en) Low-frequency dispersed type delay line
US5539687A (en) Correlator and communication system using it
GB1530665A (en) Acoustic wave devices
GB1413916A (en) Acoustic surface-wave devices
GB1381912A (en) Acoustic wave devices
ES489418A1 (en) Acoustic wave filter.
JPS53132246A (en) Elastic surface wave filter
JPS55159612A (en) Elastic surface wave element
GB1526380A (en) Elastic bulk wave frequency filter
JPS57155825A (en) Surface wave device
GB1423684A (en) Surface acoustic wave logic devices
SU1123098A1 (en) Delay line based on acoustic surface waves
JPS55114020A (en) Elastic surface wave filter
GB1197860A (en) Acoustic Surface Wave Delay Line
JPS5541069A (en) Crystal oscillation unit of slide wave
ATE55520T1 (en) ACOUSTIC WAVE FILTER.
JPS5647118A (en) Surface elastic wave filter of band-passing type
JPS6091710A (en) Surface acoustic wave filter
GB1469084A (en) Surface acoustic wave delay lines
JPS5549021A (en) Elastic surface-wave unit
SU792540A1 (en) Acousto-electron correlator of analogue signals based on surface acoustic waves
JPS56166619A (en) Elastic surface wave device