FR864610A - Perfectionnements apportés aux cadres antennes - Google Patents

Perfectionnements apportés aux cadres antennes

Info

Publication number
FR864610A
FR864610A FR864610DA FR864610A FR 864610 A FR864610 A FR 864610A FR 864610D A FR864610D A FR 864610DA FR 864610 A FR864610 A FR 864610A
Authority
FR
France
Prior art keywords
improvements made
antenna frames
antenna
frames
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
Other languages
English (en)
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR864610A publication Critical patent/FR864610A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
    • G01S3/085—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems by using spaced loop aerial systems
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
FR864610D 1939-04-04 1940-04-02 Perfectionnements apportés aux cadres antennes Expired FR864610A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL538458X 1939-04-04

Publications (1)

Publication Number Publication Date
FR864610A true FR864610A (fr) 1941-05-01

Family

ID=19787235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864610D Expired FR864610A (fr) 1939-04-04 1940-04-02 Perfectionnements apportés aux cadres antennes

Country Status (4)

Country Link
BE (1) BE438561A (enrdf_load_stackoverflow)
FR (1) FR864610A (enrdf_load_stackoverflow)
GB (1) GB538458A (enrdf_load_stackoverflow)
NL (1) NL57014C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602138A (en) * 1948-11-06 1952-07-01 Canady Don Antenna

Also Published As

Publication number Publication date
GB538458A (en) 1941-08-05
NL57014C (enrdf_load_stackoverflow)
BE438561A (enrdf_load_stackoverflow)

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