US2383490A - Loop antenna - Google Patents

Loop antenna Download PDF

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Publication number
US2383490A
US2383490A US461148A US46114842A US2383490A US 2383490 A US2383490 A US 2383490A US 461148 A US461148 A US 461148A US 46114842 A US46114842 A US 46114842A US 2383490 A US2383490 A US 2383490A
Authority
US
United States
Prior art keywords
members
antenna
hollow
mast
supporting
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 - Lifetime
Application number
US461148A
Other languages
English (en)
Inventor
Armig G Kandoian
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.)
STC PLC
Federal Telephone and Radio Corp
Original Assignee
Standard Telephone and Cables PLC
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
Priority to BE479061D priority Critical patent/BE479061A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to US461148A priority patent/US2383490A/en
Priority to GB8595/44A priority patent/GB587677A/en
Application granted granted Critical
Publication of US2383490A publication Critical patent/US2383490A/en
Priority to ES0182227A priority patent/ES182227A1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path

Definitions

  • This invention relates to antenna. arrangements and more particularly to broad band antenna systems.
  • the radiant acting members are made of hollow conductive material.
  • the feeding lines are connected to one end of each member and the sup.
  • porting rods which may be of conductive material are fastened directly to the inner surface of the hollow members and insulated from direct contact with the outer surface thereof.
  • Fig. 1 is atop plan view partially in section showing the structural arrangement of an antenna inaccordance with my invention
  • Fig. 2 is a fragmentary cross-sectional view taken at line 2-2 of Fig. 1;
  • Fig; 3 is a perspective :view of an antenna array in accordance with my invention.
  • the antenna is composed of four hollow radiant acting members I, 2, 3, 4 arranged in the form of a substantially closed pattern. Substantially centrally of the square is provided a feedline provided with a shield 5 which serves as a supporting mast for the antenna structure. Within the shield 5 are provided two parallel transmission line conductors indicated at 6 and I. These conductors 6 and I are cqnnected by branch lines 8, 9 to the ends of closed members I and 2 and by means of branch lines In and H to the diagonally opposite ends of members 3 and 4.
  • Members I, 2, 3 and 4 all are preferably one half wavelength or less of the operating wave band so'that in effect a current loop occurs in each of the members and the effective currents in each of the members are all in the same direction around the periphery of the closed pattern.
  • Each of the members I, 2, 3 and 4 is preferably made in the form of a semi-cylinder as shown at 20 (Fig. 2) preferably with a metal closure member 2
  • each member is preferably provided with an end closure as shown at l2 (Fig. 1). 1
  • I provide supporting members I4, l5, I6, I! fastened at one end to a supporting sleeve I8 directly connected 'to shielded line 5 and at theirother end passing through an opening in the closure member 2
  • the I use of the metallic supports serves as alightning protection for the system. It is'further pointed out that if insulating supports are used a separate conductor fastened to the inner surface of the antenna members and the mast may be provided for lightning protection.
  • members I to t, inclusive may be made in any desired'hollow. form, the semi-cylindrical form being illustrated since it is. a relatively easy form to construct.
  • the members may be in other shapes. so that the closed pattern may take other forms, for example, a circle.
  • Fig- 3 is illustrated two of these antenna units mounted on a common supporting shielded conductor line 30. Connections are made .to the opposite diagonal corners of upper unit 3
  • the interconnecting lines 32 may be made of proper length to secure the desired phase relationship of energization.
  • the antenna array may be connected by means of line 30 to anysuitable translating device such as shown at 35.
  • a radio antenna comprising a hollow radiating element, of a given length means for energizing said radiating element, a conductivesupporting mast for said element substantially at right angles thereto, and conductive supporting means substantially at right angles to the lengthwise dimension of said element andsaid mast, fastened to said mast and fastened to the inner surface of said hollow element.
  • a radio antenna comprismga plurality of hollow radiating element's arranged in a substantially closed pattern, each of said elements having a substantially equipotential inner surface means for energizing said radiating elements at their ends, a common conductive supporting mast for said elements extending within said closed pattern, and conductive supporting means for said elements fastened to said mast and fastened to theinner surfaces of said hollow elements.
  • a radio antenna for operating at a wide frequency band comprising a plurality of hollow radiant acting members, each being no longer than substantially one half wavelength at the operating frequencies, said members having substantially equipotential inner surfaces and being arranged in the form of a substantially closed planar pattern, a shielded transmission line substantially normal to said pattern, means for connecting said transmission line to the ends of said members and supporting means for said members fastened at one end to the shield of said transmission line and at their other ends to the inner surface of each of said hollow members.
  • a radio antenna for operating over a wide frequency band comprising four hollow radiant acting members each being no longer than substantially one half wavelength at the operating frequencies, said members having substantially equipotential inner surfaces and being arranged in the form of a substantially closed planar pattern, a shielded transmission line substantially normal to said pattern, means for connecting said transmission line to the diagonally opposed ends of said members and supporting means for each of said members fastened at one end to the shield of said transmission line and at their other ends to the inner surface of the corresponding one of said hollow members.
  • a radio antenna according to claim-4 further comprising a second set of members fastened to the shield of said transmission line in a manner similar to said first set of members, and feeding connections. between the ends of said first set of members connected to said transmission line and the corresponding ends of said membersof said second set.
  • a radio antenna for operation over a frequencyfband comprising a hollow elongated radiating element, means connected to one end of said element for energizing "same, a conductive supporting mast at right angles to said element, and a conductive supporting means connecting said mast to said radiating element at a point having substantially the same potential. as said mast, said supporting'means extending at right angles to both said mast and said element.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
US461148A 1942-10-07 1942-10-07 Loop antenna Expired - Lifetime US2383490A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE479061D BE479061A (enrdf_load_stackoverflow) 1942-10-07
US461148A US2383490A (en) 1942-10-07 1942-10-07 Loop antenna
GB8595/44A GB587677A (en) 1942-10-07 1944-05-05 Loop antenna
ES0182227A ES182227A1 (es) 1942-10-07 1948-02-10 Mejoras en antenas de cuadro

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US461148A US2383490A (en) 1942-10-07 1942-10-07 Loop antenna

Publications (1)

Publication Number Publication Date
US2383490A true US2383490A (en) 1945-08-28

Family

ID=23831405

Family Applications (1)

Application Number Title Priority Date Filing Date
US461148A Expired - Lifetime US2383490A (en) 1942-10-07 1942-10-07 Loop antenna

Country Status (4)

Country Link
US (1) US2383490A (enrdf_load_stackoverflow)
BE (1) BE479061A (enrdf_load_stackoverflow)
ES (1) ES182227A1 (enrdf_load_stackoverflow)
GB (1) GB587677A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490815A (en) * 1945-01-27 1949-12-13 Standard Telephones Cables Ltd Loop antenna
US2519209A (en) * 1945-03-30 1950-08-15 Hazeltine Research Inc Antenna
US2539433A (en) * 1948-03-20 1951-01-30 Int Standard Electric Corp Circularly polarized antenna
US2618746A (en) * 1948-08-13 1952-11-18 Rca Corp Antenna system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490815A (en) * 1945-01-27 1949-12-13 Standard Telephones Cables Ltd Loop antenna
US2519209A (en) * 1945-03-30 1950-08-15 Hazeltine Research Inc Antenna
US2539433A (en) * 1948-03-20 1951-01-30 Int Standard Electric Corp Circularly polarized antenna
US2618746A (en) * 1948-08-13 1952-11-18 Rca Corp Antenna system

Also Published As

Publication number Publication date
BE479061A (enrdf_load_stackoverflow)
ES182227A1 (es) 1948-04-01
GB587677A (en) 1947-05-02

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