GB475855A - Improvements in or relating to ultra short wave radio aerial systems - Google Patents

Improvements in or relating to ultra short wave radio aerial systems

Info

Publication number
GB475855A
GB475855A GB11569/37A GB1156937A GB475855A GB 475855 A GB475855 A GB 475855A GB 11569/37 A GB11569/37 A GB 11569/37A GB 1156937 A GB1156937 A GB 1156937A GB 475855 A GB475855 A GB 475855A
Authority
GB
United Kingdom
Prior art keywords
dipole
april
transmitter
tubes
receiver
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
GB11569/37A
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 GB475855A publication Critical patent/GB475855A/en
Expired legal-status Critical Current

Links

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
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units

Landscapes

  • Details Of Aerials (AREA)

Abstract

475,855. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. April 22, 1937, No. 11569. Convention date, April 22, 1936. [Class 40 (v)] A short-wave aerial comprises a number of coaxial dipole tubes, each a half-wave in length, through which runs a two-wire feed-line Sp connected alternately to the upper and lower members of adjacent sections. It is characterized by the feature that the feeder surge impedance is graduated from a maximum at the dipole nearest the transmitter or receiver to a minimum at the other end. The arrangement gives equal current loadings in all the dipole tubes. To secure this result, the feed-lines are spaced more widely from each other at the bottom .than at the top ; the surge impedance then decreases with distance from the transmitter or receiver. The metal dipoles are mechanically connected together by suitable insulators, or they may be drawn over a continuous ceramic tube. Or they may be constituted by silver layers formed on a long ceramic tube. By varying the phase-relation of the dipoles, a mushroom - shaped radiation field is obtained.
GB11569/37A 1936-04-22 1937-04-22 Improvements in or relating to ultra short wave radio aerial systems Expired GB475855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE475855X 1936-04-22

Publications (1)

Publication Number Publication Date
GB475855A true GB475855A (en) 1937-11-26

Family

ID=6541916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11569/37A Expired GB475855A (en) 1936-04-22 1937-04-22 Improvements in or relating to ultra short wave radio aerial systems

Country Status (1)

Country Link
GB (1) GB475855A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846678A (en) * 1955-06-09 1958-08-05 Sanders Associates Inc Dual frequency antenna
US2945232A (en) * 1949-03-07 1960-07-12 Alford Andrew Antenna structure
US3961332A (en) * 1975-07-24 1976-06-01 Middlemark Marvin P Elongated television receiving antenna for indoor use
US5252984A (en) * 1989-07-05 1993-10-12 Robert Bosch Gmbh Multiband coaxial rod and sleeve antenna

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945232A (en) * 1949-03-07 1960-07-12 Alford Andrew Antenna structure
US2846678A (en) * 1955-06-09 1958-08-05 Sanders Associates Inc Dual frequency antenna
US3961332A (en) * 1975-07-24 1976-06-01 Middlemark Marvin P Elongated television receiving antenna for indoor use
US5252984A (en) * 1989-07-05 1993-10-12 Robert Bosch Gmbh Multiband coaxial rod and sleeve antenna

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