US2235015A - Antenna system - Google Patents

Antenna system Download PDF

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Publication number
US2235015A
US2235015A US279001A US27900139A US2235015A US 2235015 A US2235015 A US 2235015A US 279001 A US279001 A US 279001A US 27900139 A US27900139 A US 27900139A US 2235015 A US2235015 A US 2235015A
Authority
US
United States
Prior art keywords
antenna
airplane
antenna system
radiation
antennas
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
US279001A
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English (en)
Inventor
Eggers Hans
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of US2235015A publication Critical patent/US2235015A/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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/282—Modifying the aerodynamic properties of the vehicle, e.g. projecting type aerials
    • H01Q1/283—Blade, stub antennas

Definitions

  • This invention relates to antenna systems, and ture that the antenna system will receive unimore particularly to antennas employed for wirefcrmly from and radiate uniformly into each less signalling on movable vehicles, such as airand every compass direction since the effective planes.
  • Fig. 1 schematically shows an airplane which arrangement suffers under the fundamental disis provided with an antenna system according ⁇ to advantage that the electromagnetic eld received this inVentOn.
  • Fig. 2 shows radiation diaand/or radiated is considerably aiected by the grams explanatory 0f my invention.
  • reference numeral l denotes the me- 15 ticular by the metallic supporting surfaces theretalliC strueture 0f an airplane
  • An upper Verof from which follows that neither the action tical dipOle 2 and a IOWer Vertical dilfJOle 3 dis'- of reception nor of radiation is uniform in the POSed in alignment With One another are inhorizontal plane, since instead of the desired sulatingly fixed on the upper respectively lOWer 2o circuler radiation diagrams considerably dispart of the airplane and are Connected preferably 2o torted diagrams are obtained which present one in parallel to a wireless receiving and/ 01 transor more maxima or minima, respectively.
  • the tWO diagrams d and b are nOtOngruOuS but the sense of direction of the electromagnetic the 0n@ is Substantially the true refleet-t0n 01 30 waves in eases that the antenna, means fol-m image of the other since the minimum of the one Dart Of a direction finding system. diagram is located almost in the maximum of Itis an object of my invention to provide means the other diagram.
  • the resultant diagram C is by employing in an antenna, System 0f an airobtained which presents neither minima nor plane or the like n. plurality of antennas which maxima and which substantially involves circuare simultaneously effective and by so placing lar shape.
  • the antenna system comprises unellanged- It is thus possible as a result 0f tivo individual antennas one of which projectthe novel antenna arrangement as proposed in ing upwards and the other of which projecting this invention to secure reception and/or radiadownvvards from the upper respectively lower tion which is uniform and equal in all 00mpart of the airplane.
  • These two antennas are Dass direCtiOnS Whether the airplane nies
  • a wireless signalling equipment for use on board aircraft comprising a wireless signalling apparatus, an antenna system consisting of two individual antennas substantially omnidirectional in the horizontal plane of the craft one positioned above and the other disposed below said aircraft in substantially vertical alignment with one another and each normally setting up a radiation diagram subject to deformation by said aircraft, and means for connecting said upper and said lower antenna in parallel to the said Wireless signalling apparatus for simultaneous operation Whereby said radiation diagrams mutually supplement each other to produce a resultant radiation diagram of substantially circular configuration and uniform action in all compass directions.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Fluid Mechanics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
US279001A 1938-06-24 1939-06-14 Antenna system Expired - Lifetime US2235015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE210933X 1938-06-24

Publications (1)

Publication Number Publication Date
US2235015A true US2235015A (en) 1941-03-18

Family

ID=5799985

Family Applications (1)

Application Number Title Priority Date Filing Date
US279001A Expired - Lifetime US2235015A (en) 1938-06-24 1939-06-14 Antenna system

Country Status (4)

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US (1) US2235015A (en))
BE (1) BE434759A (en))
CH (1) CH210933A (en))
FR (1) FR855810A (en))

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452073A (en) * 1944-11-17 1948-10-26 Schivley George William Folded dipole
US2495748A (en) * 1949-01-24 1950-01-31 Glenn L Martin Co Antenna installation on airplanes
US2516500A (en) * 1946-03-26 1950-07-25 Alford Andrew Electrical apparatus
US2524993A (en) * 1945-09-14 1950-10-10 Victor H Rumsey Antenna
US20100090881A1 (en) * 2006-12-18 2010-04-15 Hoeoek Anders Fore/aft looking airborne radar

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452073A (en) * 1944-11-17 1948-10-26 Schivley George William Folded dipole
US2524993A (en) * 1945-09-14 1950-10-10 Victor H Rumsey Antenna
US2516500A (en) * 1946-03-26 1950-07-25 Alford Andrew Electrical apparatus
US2495748A (en) * 1949-01-24 1950-01-31 Glenn L Martin Co Antenna installation on airplanes
US20100090881A1 (en) * 2006-12-18 2010-04-15 Hoeoek Anders Fore/aft looking airborne radar
US8094062B2 (en) * 2006-12-18 2012-01-10 Telefonaktiebolaget L M Ericsson (Publ) Fore/aft looking airborne radar

Also Published As

Publication number Publication date
CH210933A (de) 1940-08-15
BE434759A (en))
FR855810A (fr) 1940-05-21

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