GB803608A - Quadrantal error correcting means for magnetic antennas - Google Patents

Quadrantal error correcting means for magnetic antennas

Info

Publication number
GB803608A
GB803608A GB762/57A GB76257A GB803608A GB 803608 A GB803608 A GB 803608A GB 762/57 A GB762/57 A GB 762/57A GB 76257 A GB76257 A GB 76257A GB 803608 A GB803608 A GB 803608A
Authority
GB
United Kingdom
Prior art keywords
members
antenna elements
magnetic
pair
antenna
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
GB762/57A
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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 Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB803608A publication Critical patent/GB803608A/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
    • G01S3/10—Means for reducing or compensating for quadrantal, site, or like errors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

803,608. Aerials; radio direction finding. BENDIX AVIATION CORPORATION. Jan. 8, 1957 [Feb. 3, 1956], No. 762/57. Addition to 772,998. Class 40 (7). Relates to a magnetic direction-finding aerial, Fig. 1, of the type described in the parent Specification, wherein a first pair of two crossed pairs of magnetic antenna elements is provided with highly permeable bars 31 at the extremities to compensate for quadrantal errors due to the presence of adjacent conducting surfaces. In accordance with the invention the other pair of antenna elements is provided at the extremities with conductive shielding members 31<1> which are secured to the elements in a high reluctance fashion. The members 31<1> act as shields against the passage of flux into the antenna elements so as effectively to decrease the sensitivity of the antenna elements, The combination of conductive members 31<1> on one pair of antenna elements with magnetic members 31 on the other pair extends the possible range of compensation. Members 31<1> are constructed as shown in Fig. 2 of a highly conductive material, such as copper, and are secured to the antenna elements as shown in Fig. 4 by a brass screw 36 with the interposition of an insulating member 35 so as to provide a high reluctance separation between the member and antenna element; 33 denotes a coating of plastic material normally provided over the magnetic material forming the antenna. If desired, members 31<1> may be shaped as segments of circles.
GB762/57A 1954-10-04 1957-01-08 Quadrantal error correcting means for magnetic antennas Expired GB803608A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US772998XA 1954-10-04 1954-10-04
US803608XA 1956-02-03 1956-02-03

Publications (1)

Publication Number Publication Date
GB803608A true GB803608A (en) 1958-10-29

Family

ID=26759124

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27117/55A Expired GB772998A (en) 1954-10-04 1955-09-22 Quadrantal error correcting means for magnetic antennas
GB762/57A Expired GB803608A (en) 1954-10-04 1957-01-08 Quadrantal error correcting means for magnetic antennas

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB27117/55A Expired GB772998A (en) 1954-10-04 1955-09-22 Quadrantal error correcting means for magnetic antennas

Country Status (3)

Country Link
DE (1) DE1012340B (en)
FR (1) FR1163359A (en)
GB (2) GB772998A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219970A (en) * 1940-07-26 1942-03-15 Telefunken Gmbh Bearing frame.
DE856909C (en) * 1949-11-29 1952-11-24 Siemens Ag Electrical compensation of radio misrepresentation in goniometer direction finders with a large frequency range

Also Published As

Publication number Publication date
GB772998A (en) 1957-04-17
DE1012340B (en) 1957-07-18
FR1163359A (en) 1958-09-25

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