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US1483860A - Antenna arrangement for wireless telegraphy - Google Patents

Antenna arrangement for wireless telegraphy Download PDF

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Publication number
US1483860A
US1483860A US498425A US49842521A US1483860A US 1483860 A US1483860 A US 1483860A US 498425 A US498425 A US 498425A US 49842521 A US49842521 A US 49842521A US 1483860 A US1483860 A US 1483860A
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US
United States
Prior art keywords
mast
antenna
antenna arrangement
electromotive force
wireless telegraphy
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
US498425A
Inventor
Bronk Otto Von
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.)
DRAHTLOSE TELEGRAPHIE MBH
GESELLSCHAFT fur DRAHTLOSE TELEGRAPHIE M B H HALLESCHES
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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 DRAHTLOSE TELEGRAPHIE MBH filed Critical DRAHTLOSE TELEGRAPHIE MBH
Priority to US498425A priority Critical patent/US1483860A/en
Application granted granted Critical
Publication of US1483860A publication Critical patent/US1483860A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure

Definitions

  • This invention relates to radio signalling systems and particularl to a method and apparatus for eliminatlng undesirable effects of the antenna masts.
  • the great height of the masts used for radio antenna makes it necessary to provide relatively great mechanical firmness. It is therefore necessary to make the masts almost entirelv of metal.
  • the masts are a troublesome necessity in the alternating field of the antenna as they produce distortion in the path of the lines of force between the antenna and its surroundings which unfavorably influence the radiation and produce currents in the masts, which, depending on the resistance resent result in losses and diminish the e ectiveness of the entire antenna arrangement.
  • the masts are usually separated from the ground by means of insulation but it is difiicult to maintain the insulation permanently good.
  • the present invention discloses a further.
  • the mast is u subjected to an electromotive force by means of an auxiliary source of energy drawn from the high frequency source and having the ⁇ phase and distribution substantially ual to the electromotive force in the neigh r- 0 ing dielectric.
  • the lines of force from the dielectric entering into the mast are thus reduced to a minimum so that the enlatter is coupled with a second coil S and from this the auxiliary energy is sulpplied to the mast. If S is uncoupled from then a 'current flows through the mast and feeding conductor, the value of which can be determined on the meter H.

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Description

Feb. 12 1924.
O. VON BRONK ANTENNA ARRANGEMENT FOR WIRELESS TELEGRAPHY Filed Sept. 5, 1921 gnoemkoz OTTO von BRONK I. a m s XW Patented Feb. 12, 1924.
UNITED sures PATeN-romca.
o'r'ro vol naomz, or BEZBLIN, eamumz, assronon. ro omnnscaan" run nam'r-i LOSE TELEGRLPHIE M. B. H. HALLESCHES, OI
TION OF GERMANY.
ANTENNA ARRANGEMENT FOB WIRELESS TELEGRAPH.
Application filed September 3, 1821. Serial No. 498,485.
To all whom it may concern:
Be it known that I, Orro VON BnoNK, citizen of the German Republic, residing at v Berlin, Germany, have invented certain new and useful Improvements in Antenna Arrangements for Wireless Telegraphy (for which I have filed an application in Germany June 5, 1917, Patent No. 300,782), of which the following is a specification.
This invention relates to radio signalling systems and particularl to a method and apparatus for eliminatlng undesirable effects of the antenna masts.
The great height of the masts used for radio antenna makes it necessary to provide relatively great mechanical firmness. It is therefore necessary to make the masts almost entirelv of metal. The masts are a troublesome necessity in the alternating field of the antenna as they produce distortion in the path of the lines of force between the antenna and its surroundings which unfavorably influence the radiation and produce currents in the masts, which, depending on the resistance resent result in losses and diminish the e ectiveness of the entire antenna arrangement. To prevent these, the masts are usually separated from the ground by means of insulation but it is difiicult to maintain the insulation permanently good.
The present invention discloses a further.
means to counteract the efi'ects mentioned as will be hereunto described. The mast is u subjected to an electromotive force by means of an auxiliary source of energy drawn from the high frequency source and having the\ phase and distribution substantially ual to the electromotive force in the neigh r- 0 ing dielectric. The lines of force from the dielectric entering into the mast are thus reduced to a minimum so that the enlatter is coupled with a second coil S and from this the auxiliary energy is sulpplied to the mast. If S is uncoupled from then a 'current flows through the mast and feeding conductor, the value of which can be determined on the meter H. By correct coupling of S and L and proper electrical values of the current path comprising the earth mast and dielectric an electromotive force of the proper phase and amplitude can be impresed on the mast so that the current in it will be a minimum.
Having described my invention, what I claim is:
1. In radio signalling systems having an antenna supported by a conducting mast, means for impressing an electromotive force on the mast to substantially prevent induced currents therein.
2. In radio signalling systems having an antenna supported by a conducting mast, means for impressing an electromotive force on the mast substantially equal and opposite to the electromotive force normally 1nduced in the mast by the antenna.
3. In radiosignalhng systems having an antenna supported by a conducting mast, means for impressin an electromotive force on the mast substantially equal and opgosite to the electromotive force no'rmall in need in the mast by the antenna, sai electro: motive force being derived from said Inf tenna system. a
4. In radio signalling systems having an antenna supported by a conducting mast insulated from the earth, means for impressing an electromotive force on the mast to an stantially prevent induced currents therem 5. In radio signalling systems having an antenna supported by a conductin mast insulated from the earth, means or impressing an electromotive force on the mast substantiall equal and uapposite to the electromotive orce norm, mast b theealnknafiaidelgclrnromotive force bemg eriv m e an a system.
In testimony whereof I aflix the signature.
o'rro vonBBONK.
y induced in the BERLIN, GEWY, A COBPOBL-
US498425A 1921-09-03 1921-09-03 Antenna arrangement for wireless telegraphy Expired - Lifetime US1483860A (en)

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US498425A US1483860A (en) 1921-09-03 1921-09-03 Antenna arrangement for wireless telegraphy

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US498425A US1483860A (en) 1921-09-03 1921-09-03 Antenna arrangement for wireless telegraphy

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521550A (en) * 1946-02-28 1950-09-05 Bell Telephone Labor Inc Radio antenna system
US2609504A (en) * 1946-12-12 1952-09-02 Padevco Inc Antenna system
US2611871A (en) * 1947-08-28 1952-09-23 Alford Andrew Antenna detuning system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521550A (en) * 1946-02-28 1950-09-05 Bell Telephone Labor Inc Radio antenna system
US2609504A (en) * 1946-12-12 1952-09-02 Padevco Inc Antenna system
US2611871A (en) * 1947-08-28 1952-09-23 Alford Andrew Antenna detuning system

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