US1783072A - Antenna system - Google Patents

Antenna system Download PDF

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Publication number
US1783072A
US1783072A US55087A US5508725A US1783072A US 1783072 A US1783072 A US 1783072A US 55087 A US55087 A US 55087A US 5508725 A US5508725 A US 5508725A US 1783072 A US1783072 A US 1783072A
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US
United States
Prior art keywords
antenna
condensers
energy
length
radiation
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
US55087A
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English (en)
Inventor
Chireix Henri
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Individual
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Individual
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Filing date
Publication date
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Publication of US1783072A publication Critical patent/US1783072A/en
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
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna

Definitions

  • the present invention concerns easilyjcon structed antenna arrangementsfand has for its principal object the provision of such an arrangementwhich for agiven power and frequency of energizing current willproduce a greatly increased 'efi'ectat a distance compared with what has heretofore been attained with an ordinary antenna.
  • Another object of the invention isto pro
  • Still another object of the invention is to I provide an antenna arrangement in which I5 substantially all" the transmitted power will 2o vices within range;
  • Still another object of'the invention is to provide an antenna having a natural wave length less than its physical length.
  • Still anothe'r' object of theinvention- is to provide an antenna having condensers connected in series withflit'at different" points along its length whereby its" natural Wave length will be substantially shortened.
  • This action isrealized by preventing the beam of energy from expanding in zenith.
  • phase displacement 1 of the current-along an infinite line constituted in this manner isvery much less than that corresponding to a non-charged line; in otherwords,the length of the line necessary to produce a complete wave ofcurrent is greatly increased, or from still a diiferent aspect, the velocity of flow of energy along the radiator, i; e, in a vertical direction, is made greater than the velocity of light.
  • the distance atwhichthese must be placed" is calculated in the sameway as the intervals 9 at which Pupincdilsmust. be, disposed in pupinizedlines.
  • l 1 i The invention is illustrated byway of example in the accompanying drawing in which 7' w i i iFigs'rl and flare comparativecurves shoW-' ing the energy dispersalfrom an antenna conforming to theiinvention and from an e i we ordinary antenna respectively,
  • Fig. 3 shows a non-directional antenna conforming to the invention
  • Fig. 4 shows a directional antenna conforming to the invention
  • Figure 5 is a view in detail of a method of connecting the condensers, one such condenser being shown in section.
  • Fig. 3 shows by way of example one embodiment of the invention.
  • the antenna is of the two-wire kind, the wires being represented by the reference numerals 1 and 2 which are interrupted at intervals by cylindrical condensers, represented at 3, each condenser consisting of two concentric tubes a and Z).
  • the two parallel wires 1 and 2 are each fastened to one end of the tube a which constitutes the outer armature of the series condensers.
  • the other armature b of such condensers is located inside tube a and insulated therefrom by a suitable dielectric.
  • the inner armatures of each two next condensers are connected together by means of wires at in the same manner as the outer armatures by means of wires 1 and 2.
  • Such disposition has the advantage of easily securing a good mechanical strength, together with the necessary insulation between sections 2 and 4 and 1 and 4:. It should be understood however that the condensers can be realized and built in a great many other ways.
  • a modification of the invention consists in constituting a closed circuit with the capacity shortened conductors shown in Fig. 3, and in inducing in the frame thus formed currents of a frequency corresponding to the resonance or tuned condition of the system.
  • An antenna arrangement comprising an essentially upright antenna and means. for uniformly reducing the self-inductance per unit length thereof without affecting its capacity.
  • An antenna arrangement comprising an upright antenna conductor with substantially uniformly spaced condensers in series with it distributed along its length.
  • An antenna arrangement comprising a plurality of spaced upright antenna conductors with condensers in series with and substantially uniformly spaced along the length of said conductors.
  • An antenna for radiating directionally and in only a substantially horizontal region in space comprising a plurality of upright radiators spaced a fraction of a wave length apart and energized in dephased relation to secure directional radiation, each of said upright radiators being electrically shortened by spaced series condensers to suppress radiation towards the zenith.
  • the method of suppressing radiation towards the zenith which consists in transmitting, the radiation. energy in a vertical direction at. a speed greater than that of light.
  • the method of radiating electromag netic energy in order to produce substantial horizontal propagation of the radiated energy which includes transmitting energy vertically and linearly at a velocity greater than that-of'light.
  • the method of radiating electromagnetic energy in order to produce substantial horizontal propagation of the radiated energy which includes transmitting radiant energy in a vertical plane linearly ata speed greater; thanthat ofllighth V 9.
  • An antenna for radiating directionally and in only a substantially horizontal re ion in space comprising a plurality of uprlght radiators spaced a'fraction of a Wave length apart and energized in a predetermined phase relation to secure directional radiation each of said upright radiators being electrically shortened by spaced series condensers to suppress radiation towards the zenith.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Particle Accelerators (AREA)
US55087A 1924-09-09 1925-09-08 Antenna system Expired - Lifetime US1783072A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1783072X 1924-09-09
DES71477D DE429481C (de) 1924-09-09 1925-09-11 Luftleiter fuer drahtlose Nachrichtenuebermittlung

Publications (1)

Publication Number Publication Date
US1783072A true US1783072A (en) 1930-11-25

Family

ID=25996291

Family Applications (1)

Application Number Title Priority Date Filing Date
US55087A Expired - Lifetime US1783072A (en) 1924-09-09 1925-09-08 Antenna system

Country Status (4)

Country Link
US (1) US1783072A (de)
DE (1) DE429481C (de)
FR (1) FR598513A (de)
GB (1) GB239854A (de)

Also Published As

Publication number Publication date
FR598513A (fr) 1925-12-18
GB239854A (en) 1926-03-25
DE429481C (de) 1926-05-28

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