GB595837A - Improvements in or relating to directional antenna - Google Patents

Improvements in or relating to directional antenna

Info

Publication number
GB595837A
GB595837A GB1129044A GB1129044A GB595837A GB 595837 A GB595837 A GB 595837A GB 1129044 A GB1129044 A GB 1129044A GB 1129044 A GB1129044 A GB 1129044A GB 595837 A GB595837 A GB 595837A
Authority
GB
United Kingdom
Prior art keywords
boom
loops
directional antenna
tubes
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
GB1129044A
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.)
United Airlines Inc
Original Assignee
United Airlines Inc
Filing date
Publication date
Application filed by United Airlines Inc filed Critical United Airlines Inc
Publication of GB595837A publication Critical patent/GB595837A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Particle Accelerators (AREA)

Abstract

595,837. Aerials. STEVENS, A. H. (United Air Lines, Inc.). June 13, 1944, No. 11290. [Class 40 (v)] In a directional antenna comprising spaced loops 12, 13 carried on a rotatable metallic boom 17, the loops are slightly tilted with respect to the longitudinal axis of the boom, i.e. the planes in which the loops lie are not quite at right angles to the boom, in order to minimize boom eddy-current effects by taking into account the vertical component of such currents arising from the thickness of the boom. Tilting is effected in opposite directions, each loop normally being tilted inwardly towards the vertical axis of rotation of the boom. The loops are contained in split shields formed of metal tubes 14 with an insulating insert 16, the lower ends of the tubes fitting into apertures in the boom ends to which they are secured by means of bolts and flanges 20.
GB1129044A 1944-06-13 Improvements in or relating to directional antenna Expired GB595837A (en)

Publications (1)

Publication Number Publication Date
GB595837A true GB595837A (en) 1947-12-18

Family

ID=1707410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1129044A Expired GB595837A (en) 1944-06-13 Improvements in or relating to directional antenna

Country Status (1)

Country Link
GB (1) GB595837A (en)

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