GB515853A - Improvements in dipole aerials - Google Patents

Improvements in dipole aerials

Info

Publication number
GB515853A
GB515853A GB1766938A GB1766938A GB515853A GB 515853 A GB515853 A GB 515853A GB 1766938 A GB1766938 A GB 1766938A GB 1766938 A GB1766938 A GB 1766938A GB 515853 A GB515853 A GB 515853A
Authority
GB
United Kingdom
Prior art keywords
loop
dipole
antenna
screen
earthed
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
GB1766938A
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.)
Kolster Brandes Ltd
Original Assignee
Kolster Brandes Ltd
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 Kolster Brandes Ltd filed Critical Kolster Brandes Ltd
Priority to GB1766938A priority Critical patent/GB515853A/en
Priority to FR855827D priority patent/FR855827A/en
Publication of GB515853A publication Critical patent/GB515853A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/20—Two collinear substantially straight active elements; Substantially straight single active elements
    • H01Q9/24—Shunt feed arrangements to single active elements, e.g. for delta matching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks

Landscapes

  • Details Of Aerials (AREA)

Abstract

515,853. Wireless signalling. KOLSTERBRANDES, Ltd., and CHATTERJEA, P. K. June 14, 1938, No. 17669. [Class 40 (v)] A transmission line is coupled to a dipole antenna by an impedance transformer comprising a' rectilinear loop having an inductive reactance equal to that of that part of the dipole coupled thereto. In one embodiment, the line is formed into a loop A<1>, B\ D<1>, C<1>, the side A<1>B<1> of which is parallel to the central portion AB of the dipole 1 and may be suspended therefrom by insulators 6. A screen S, which may or may not be earthed, is located between the antenna and the coupling loop and is electrically balanced with respect to the axis of symmetry O, O<1> perpendicular to the antenna. In a further embodiment the screen consists of a tubular Faraday cage coaxial with the loop conductors and left unearthed or earthed at the centre point or connected to the feeder screen if provided.
GB1766938A 1938-06-14 1938-06-14 Improvements in dipole aerials Expired GB515853A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1766938A GB515853A (en) 1938-06-14 1938-06-14 Improvements in dipole aerials
FR855827D FR855827A (en) 1938-06-14 1939-06-07 Coupling circuits for dipole antennas and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1766938A GB515853A (en) 1938-06-14 1938-06-14 Improvements in dipole aerials

Publications (1)

Publication Number Publication Date
GB515853A true GB515853A (en) 1939-12-15

Family

ID=10099134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1766938A Expired GB515853A (en) 1938-06-14 1938-06-14 Improvements in dipole aerials

Country Status (2)

Country Link
FR (1) FR855827A (en)
GB (1) GB515853A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268899A (en) * 1964-04-23 1966-08-23 James D Walden Cylindrical tube antenna with matching transmission line
WO2006130069A1 (en) 2005-06-02 2006-12-07 Totalförsvarets Forskningsinstitut Broadband lossless dipole antenna
US8451185B2 (en) 2008-02-21 2013-05-28 Antennasys, Inc. Multi-feed dipole antenna and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268899A (en) * 1964-04-23 1966-08-23 James D Walden Cylindrical tube antenna with matching transmission line
WO2006130069A1 (en) 2005-06-02 2006-12-07 Totalförsvarets Forskningsinstitut Broadband lossless dipole antenna
US8054236B2 (en) 2005-06-02 2011-11-08 Totalfösvarets Forskningsinstitut Broadband lossless dipole antenna
US8451185B2 (en) 2008-02-21 2013-05-28 Antennasys, Inc. Multi-feed dipole antenna and method

Also Published As

Publication number Publication date
FR855827A (en) 1940-05-21

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