FR1221895A - Perfectionnements apportés aux radars - Google Patents

Perfectionnements apportés aux radars

Info

Publication number
FR1221895A
FR1221895A FR784717A FR784717A FR1221895A FR 1221895 A FR1221895 A FR 1221895A FR 784717 A FR784717 A FR 784717A FR 784717 A FR784717 A FR 784717A FR 1221895 A FR1221895 A FR 1221895A
Authority
FR
France
Prior art keywords
radars
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.)
Expired
Application number
FR784717A
Other languages
English (en)
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.)
Decca Record Co Ltd
Original Assignee
Decca Record 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 Decca Record Co Ltd filed Critical Decca Record Co Ltd
Application granted granted Critical
Publication of FR1221895A publication Critical patent/FR1221895A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
FR784717A 1958-01-23 1959-01-22 Perfectionnements apportés aux radars Expired FR1221895A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2366/58A GB837791A (en) 1958-01-23 1958-01-23 Improvements in or relating to radar apparatus

Publications (1)

Publication Number Publication Date
FR1221895A true FR1221895A (fr) 1960-06-07

Family

ID=9738278

Family Applications (1)

Application Number Title Priority Date Filing Date
FR784717A Expired FR1221895A (fr) 1958-01-23 1959-01-22 Perfectionnements apportés aux radars

Country Status (4)

Country Link
DE (2) DE185205C (fr)
FR (1) FR1221895A (fr)
GB (1) GB837791A (fr)
NL (2) NL235392A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949508A (en) * 1960-12-05 1964-02-12 Marconi Co Ltd Improvements in or relating to radar systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB639194A (en) * 1946-11-04 1950-06-21 Mini Of Supply Improvements in or relating to radio transmitting and receiving systems
GB723008A (en) * 1951-12-17 1955-02-02 Decca Record Co Ltd Improvements in or relating to radar systems

Also Published As

Publication number Publication date
DE1085205B (de) 1960-07-14
NL126156C (fr) 1900-01-01
GB837791A (en) 1960-06-15
NL235392A (fr) 1900-01-01
DE185205C (fr) 1900-01-01

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