GB485979A - Improvements in or relating to frame aerial arrangements - Google Patents

Improvements in or relating to frame aerial arrangements

Info

Publication number
GB485979A
GB485979A GB27580/37A GB2758037A GB485979A GB 485979 A GB485979 A GB 485979A GB 27580/37 A GB27580/37 A GB 27580/37A GB 2758037 A GB2758037 A GB 2758037A GB 485979 A GB485979 A GB 485979A
Authority
GB
United Kingdom
Prior art keywords
coils
frame
effect
oct
relating
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
GB27580/37A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB485979A publication Critical patent/GB485979A/en
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
    • G01S3/12—Means for determining sense of direction, e.g. by combining signals from directional antenna or goniometer search coil with those from non-directional antenna

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

485,979. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 11, 1937, No. 27580. Convention date, Oct. 9, 1936. [Class 40 (v)] A frame aerial consists of one or more completely - closed coils F, Fig. 2, coupled to a receiver or transmitter by one or more coils C1, C2 of ring-like or toroidal form, which may be connected in series or parallel. For tight coupling the coils are fitted with a ferro-magnetic core K, Fig. 3, The coils are electrostatically screened, and the frame is symmetrically earthed by a lead E, which also earths the screen. The arrangement reduces "vertical" effect and gives a clear-cut directional response. By reversing the polarity of the connections of one coupling-coil, the normal frame effect can be converted to an " open aerial " effect.
GB27580/37A 1936-10-09 1937-10-11 Improvements in or relating to frame aerial arrangements Expired GB485979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201781X 1936-10-09

Publications (1)

Publication Number Publication Date
GB485979A true GB485979A (en) 1938-05-27

Family

ID=5768050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27580/37A Expired GB485979A (en) 1936-10-09 1937-10-11 Improvements in or relating to frame aerial arrangements

Country Status (4)

Country Link
US (1) US2202368A (en)
CH (1) CH201781A (en)
GB (1) GB485979A (en)
NL (1) NL52051C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467961A (en) * 1946-02-20 1949-04-19 Electronies Res Inc Antenna
US2520987A (en) * 1947-10-22 1950-09-05 Motorola Inc Vehicle body antenna
US2520986A (en) * 1947-10-22 1950-09-05 Motorola Inc Vehicular antenna system
US3852758A (en) * 1973-03-12 1974-12-03 J Polson Coupling method and device for animal mountable electronic package
US4288794A (en) * 1979-12-26 1981-09-08 Textron Inc. Shielded loop VOR/ILS antenna system
US4342999A (en) * 1980-11-25 1982-08-03 Rca Corporation Loop antenna arrangements for inclusion in a television receiver
US5248989A (en) * 1988-02-04 1993-09-28 Unisan Ltd. Magnetic field concentrator
US5432518A (en) * 1993-06-15 1995-07-11 Texas Instruments Incorporated Closed slot antenna having outer and inner magnetic loops
SE500983C2 (en) * 1993-09-06 1994-10-10 Allgon Ab The antenna coupling device

Also Published As

Publication number Publication date
US2202368A (en) 1940-05-28
CH201781A (en) 1938-12-15
NL52051C (en)

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