FR2239810A1 - - Google Patents

Info

Publication number
FR2239810A1
FR2239810A1 FR7328289A FR7328289A FR2239810A1 FR 2239810 A1 FR2239810 A1 FR 2239810A1 FR 7328289 A FR7328289 A FR 7328289A FR 7328289 A FR7328289 A FR 7328289A FR 2239810 A1 FR2239810 A1 FR 2239810A1
Authority
FR
France
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
FR7328289A
Other languages
French (fr)
Other versions
FR2239810B1 (enrdf_load_stackoverflow
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7328289A priority Critical patent/FR2239810B1/fr
Priority to US492777A priority patent/US3916347A/en
Priority to DE2436727A priority patent/DE2436727A1/de
Publication of FR2239810A1 publication Critical patent/FR2239810A1/fr
Application granted granted Critical
Publication of FR2239810B1 publication Critical patent/FR2239810B1/fr
Expired 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
    • H03H9/74—Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
    • H03H9/76—Networks using surface acoustic waves
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/0296—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7328289A 1973-08-02 1973-08-02 Expired FR2239810B1 (enrdf_load_stackoverflow)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7328289A FR2239810B1 (enrdf_load_stackoverflow) 1973-08-02 1973-08-02
US492777A US3916347A (en) 1973-08-02 1974-07-29 Novel directional coupler for high-frequency electric signals
DE2436727A DE2436727A1 (de) 1973-08-02 1974-07-30 Richtkoppler fuer elektrische hochfrequenzsignale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328289A FR2239810B1 (enrdf_load_stackoverflow) 1973-08-02 1973-08-02

Publications (2)

Publication Number Publication Date
FR2239810A1 true FR2239810A1 (enrdf_load_stackoverflow) 1975-02-28
FR2239810B1 FR2239810B1 (enrdf_load_stackoverflow) 1976-04-30

Family

ID=9123508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328289A Expired FR2239810B1 (enrdf_load_stackoverflow) 1973-08-02 1973-08-02

Country Status (3)

Country Link
US (1) US3916347A (enrdf_load_stackoverflow)
DE (1) DE2436727A1 (enrdf_load_stackoverflow)
FR (1) FR2239810B1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064382A3 (en) * 1981-04-28 1983-06-01 Fujitsu Limited Surface acoustic wave filter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582484B2 (ja) * 1976-02-26 1983-01-17 ソニー株式会社 表面波装置
US4079342A (en) * 1976-09-15 1978-03-14 Sperry Rand Corporation Fanned multistrip coupler filters

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516027A (en) * 1968-08-05 1970-06-02 Us Army Variable surface-wave delay line
US3560891A (en) * 1969-03-24 1971-02-02 Westinghouse Electric Corp Reflection phase shifter utilizing microstrip directional coupler
US3585531A (en) * 1969-04-29 1971-06-15 Westinghouse Electric Corp Magnetically variable microstrip directional coupler deposited on ferrite substrate
US3739290A (en) * 1971-05-05 1973-06-12 Secr Defence Acoustic surface wave devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064382A3 (en) * 1981-04-28 1983-06-01 Fujitsu Limited Surface acoustic wave filter
US4451805A (en) * 1981-04-28 1984-05-29 Fujitsu Limited Surface acoustic wave filter

Also Published As

Publication number Publication date
US3916347A (en) 1975-10-28
DE2436727A1 (de) 1975-02-13
FR2239810B1 (enrdf_load_stackoverflow) 1976-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse