EP1099275A1 - Antenne conformee - Google Patents

Antenne conformee

Info

Publication number
EP1099275A1
EP1099275A1 EP99937806A EP99937806A EP1099275A1 EP 1099275 A1 EP1099275 A1 EP 1099275A1 EP 99937806 A EP99937806 A EP 99937806A EP 99937806 A EP99937806 A EP 99937806A EP 1099275 A1 EP1099275 A1 EP 1099275A1
Authority
EP
European Patent Office
Prior art keywords
antenna structure
carrier
antenna
region
magnetic field
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.)
Withdrawn
Application number
EP99937806A
Other languages
German (de)
English (en)
Inventor
Jürgen DRESEL
Andries Petrus Cronje Fourie
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.)
Poynting Innovations Pty Ltd
Original Assignee
Poynting Innovations Pty 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 Poynting Innovations Pty Ltd filed Critical Poynting Innovations Pty Ltd
Publication of EP1099275A1 publication Critical patent/EP1099275A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01Q1/286—Adaptation for use in or on aircraft, missiles, satellites, or balloons substantially flush mounted with the skin of the craft
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • 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

Definitions

  • THIS invention relates to radio frequency antennas and more
  • a conformal antenna conforms to the shape of a carrier body, such as
  • the antenna may be formed to
  • a carrier having a conductive surface and a layer of magnetic
  • field interacting means applied on or near a region of the surface, to
  • nanocrystalline magnetic material alloy preferably an amorphous or
  • nanocrystalline magnetic metal alloy An example of a suitable alloy is
  • VITROPERM 500 F TM which is a Fe-based alloy (Fe73.5 Cu 1 Nb3
  • the carrier may be a vehicle, such as a motor vehicle or craft, such as
  • an aeroplane or helicopter having metallic skinned wings or fuselages.
  • nanocrystalline magnetic material alloy preferably a magnetic metal
  • the material may be provided in the form of a tape and the layer may
  • figure 1 is a plan view of an aeroplane including an antenna
  • figure 2 is a section on line II in figure 1 ;
  • figure 3 shows an alternative configuration for the antenna
  • figure 4 is a diagrammatic perspective view of yet another
  • figure 5 is a diagram of a dipole antenna which is equivalent to
  • the invention is generally designated by the reference numeral 1 2 in
  • figure 1 figure 1 .
  • the aeroplane body includes a fuselage 1 4 and wings 1 6 and 1 8, each
  • wing 1 8 is shown in better detail in figure 2.
  • the conformal antenna structure 10 conforms to the shape of the
  • FTM which is a Fe-based alloy (Fe73.5 Cu1 Nb3 Si1 5.5 B7).
  • the layer 20 on the conductive wing 18 is shown in more detail in
  • the layer 20 interacts with magnetic fields associated with
  • antenna or the like is formed at these frequencies.
  • the magnetic field interacting means 30 is applied in the
  • the structure yields a substantially omnidirectional antenna.
  • structure includes a hollow or solid rod 42 of an electricity conductive
  • the magnetic field interacting means is provided in the form
  • the body 44 is formed by
  • the tape is wound directly onto the rod or an air gap 47 may be
  • a dipole antenna When driven by an RF source 48 on either side of the body 44, a dipole antenna is formed.
  • the equivalent dipole antenna 50 is shown in figure 5.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)

Abstract

L'invention se rapporte à une structure d'antenne et à un procédé de fabrication d'une antenne sur un support conducteur. Ladite structure comporte un support (18) doté d'une surface électriquement conductrice (18.1) et une couche (20) interagissant avec le champ magnétique et comportant un alliage de matières magnétiques amorphes ou nanocristallines, du type VITROPERM 500 FTM, disposée sur ou à proximité de ladite surface. En cours d'utilisation, la structure d'antenne est commandée par une source de signaux générant une fréquence dans la bande 1 MHz à 3000 MHz.
EP99937806A 1998-07-22 1999-07-21 Antenne conformee Withdrawn EP1099275A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA9806524 1998-07-22
ZA986524 1998-07-22
PCT/ZA1999/000051 WO2000005782A1 (fr) 1998-07-22 1999-07-21 Antenne conformee

Publications (1)

Publication Number Publication Date
EP1099275A1 true EP1099275A1 (fr) 2001-05-16

Family

ID=25587156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99937806A Withdrawn EP1099275A1 (fr) 1998-07-22 1999-07-21 Antenne conformee

Country Status (3)

Country Link
EP (1) EP1099275A1 (fr)
AU (1) AU5256199A (fr)
WO (1) WO2000005782A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10319674A1 (de) * 2003-05-02 2004-11-25 Siemens Ag Antenne für einen stationären Teil eines fernsteuerbaren Zugangskontrollsystems, insbesondere an einem Kraftfahrzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740113A (en) * 1952-01-03 1956-03-27 Bendix Aviat Corp Magnetic antenna systems
US3409891A (en) * 1965-09-20 1968-11-05 Rosemount Eng Co Ltd Surface antenna
US3713166A (en) * 1970-12-18 1973-01-23 Ball Brothers Res Corp Flush mounted antenna and receiver tank circuit assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0005782A1 *

Also Published As

Publication number Publication date
AU5256199A (en) 2000-02-14
WO2000005782A1 (fr) 2000-02-03

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010213

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20011217

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020628