EP0212963A2 - Antenne omnidirectionnelle - Google Patents

Antenne omnidirectionnelle Download PDF

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Publication number
EP0212963A2
EP0212963A2 EP86306363A EP86306363A EP0212963A2 EP 0212963 A2 EP0212963 A2 EP 0212963A2 EP 86306363 A EP86306363 A EP 86306363A EP 86306363 A EP86306363 A EP 86306363A EP 0212963 A2 EP0212963 A2 EP 0212963A2
Authority
EP
European Patent Office
Prior art keywords
antenna
lens
reflector
array
rays
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Withdrawn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
EP86306363A
Other languages
German (de)
English (en)
Other versions
EP0212963A3 (fr
Inventor
William David Waddoup
Andrew Peter Norris
Alan Pearson
Colin Dougal Mcewen
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.)
STC PLC
Original Assignee
STC PLC
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 STC PLC filed Critical STC PLC
Publication of EP0212963A2 publication Critical patent/EP0212963A2/fr
Publication of EP0212963A3 publication Critical patent/EP0212963A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/062—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/23—Combinations of reflecting surfaces with refracting or diffracting devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device

Definitions

  • an omni-directional lens has perfect circular symmetry in azimuth (Fig. la) and Fig. lb shows the extent to which parallel rays are focussed by such an arrangement viewed in vertical section.
  • a dielectric constant ( E) of greater than 4 the radial distance (l) at which rays cross the undiffracted ray which passes through the centre of the lens, is given by
  • the surface In elevation the surface may be shaped as desired but an ellipse is convenient since this provides a well focussed beam over a range of elevation angles.
  • a ray diagram is shown in Fig. lb.
  • a lens as shown in Fig. 1 is not immediately useful because the focal surface is buried inside the lens and cannot be accessed without interfering with the ray paths.
  • the focal surface is curved which means that the lens cannot be used directly with a planar array of signal detection elements.
  • an antenna providing up to 360° in azimuth for electromagnetic radiation comprising a dielectric lens and a cooperating reflector arrangement arranged to feed a surface array.
  • an omni-directional antenna for electromagnetic rays comprising a rotationally-symmetric dielectric lens, a cooperating rotationally-symmetric reflecting surface, and a surface array of elements arranged at the surfacial focus of the combined lens and reflecting surface.
  • Fig. 4 shows a modification to the basic lens of Fig. 2.
  • the modified antenna has a cusp-shaped reflector 10 which does not interfere with the rays 4, and which focusses local oscillator power from a TMOl mode horn 11. Otherwise the antenna is as described in Fig. 2.
  • This allows local oscillator (LO) power to be fed to the elements.
  • LO local oscillator
  • a single horn 11 supporting the TMO1 mode is used to illuminate the central conical (cusp-like) reflector 10 as shown.
  • the TMO1 mode gives rise to a circularly symmetric pattern with a null on boresight.
  • the reflector 10 is shaped to direct the LO energy onto the annulus of elements in the array plane.
  • the virtual focal line 35 is not at right angles to the hyperbolic axis 34. So as elevation is scanned, defocussing occurs so the arrangement is preferred for a chosen elevation or small range of elevations.
  • the discussion above regards the antenna as a quasi-optical system: that is to say the rays of electromagnetic energy are regarded as if they were light rays in a true optical system.
  • the lens diameter needs to be about ten wavelengths or more for this analogy to hold true.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP86306363A 1985-08-20 1986-08-18 Antenne omnidirectionnelle Withdrawn EP0212963A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8520815 1985-08-20
GB8520815 1985-08-20

Publications (2)

Publication Number Publication Date
EP0212963A2 true EP0212963A2 (fr) 1987-03-04
EP0212963A3 EP0212963A3 (fr) 1988-08-10

Family

ID=10584038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86306363A Withdrawn EP0212963A3 (fr) 1985-08-20 1986-08-18 Antenne omnidirectionnelle

Country Status (3)

Country Link
EP (1) EP0212963A3 (fr)
JP (1) JPS62110303A (fr)
IL (1) IL79773A0 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0859428A2 (fr) * 1996-12-20 1998-08-19 AT&T Corp. Antenne de toit composée pour réception terrestre et par satellite
WO2007136289A1 (fr) 2006-05-23 2007-11-29 Intel Corporation Systèmes d'antennes à réseau de puces et de lentilles à ondes millimétriques pour réseaux sans fil
US8149178B2 (en) 2006-05-23 2012-04-03 Intel Corporation Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors
EP2471296A1 (fr) * 2009-08-28 2012-07-04 Belair Networks Inc. Antenne souterraine pour réseau local sans fil (wlan) ou application cellulaire
US8320942B2 (en) 2006-06-13 2012-11-27 Intel Corporation Wireless device with directional antennas for use in millimeter-wave peer-to-peer networks and methods for adaptive beam steering
WO2021144626A1 (fr) * 2020-01-17 2021-07-22 Telefonaktiebolaget Lm Ericsson (Publ) Formateur/redirecteur de faisceau de guide d'ondes diélectrique à ondes millimétriques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917675A1 (de) * 1969-04-05 1970-10-15 Deutsche Bundespost Dielektrische Rundstrahlantenne
FR2334216A1 (fr) * 1975-12-05 1977-07-01 Thomson Csf Antenne omnidirectionnelle a large bandepassante
DE2614133A1 (de) * 1976-04-01 1977-10-06 Siemens Ag Antennenanordnung mit veraenderbarer abstrahlrichtung
US4682179A (en) * 1985-05-03 1987-07-21 The United States Of America As Represented By The Secretary Of The Army Omnidirectional electromagnetic lens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5233939B2 (fr) * 1971-09-30 1977-08-31
JPS5237906B2 (fr) * 1972-07-13 1977-09-26
JPS5020644A (fr) * 1973-06-22 1975-03-05
JPS5834961B2 (ja) * 1975-06-05 1983-07-30 三菱電機株式会社 ムシコウセイアンテナ
US4333082A (en) * 1980-03-31 1982-06-01 Sperry Corporation Inhomogeneous dielectric dome antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1917675A1 (de) * 1969-04-05 1970-10-15 Deutsche Bundespost Dielektrische Rundstrahlantenne
FR2334216A1 (fr) * 1975-12-05 1977-07-01 Thomson Csf Antenne omnidirectionnelle a large bandepassante
DE2614133A1 (de) * 1976-04-01 1977-10-06 Siemens Ag Antennenanordnung mit veraenderbarer abstrahlrichtung
US4682179A (en) * 1985-05-03 1987-07-21 The United States Of America As Represented By The Secretary Of The Army Omnidirectional electromagnetic lens

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0859428A2 (fr) * 1996-12-20 1998-08-19 AT&T Corp. Antenne de toit composée pour réception terrestre et par satellite
EP0859428A3 (fr) * 1996-12-20 2000-03-29 AT&T Corp. Antenne de toit composée pour réception terrestre et par satellite
CN101427422B (zh) * 2006-05-23 2013-08-07 英特尔公司 用于无线网络的毫米波片透镜阵列天线系统
CN101427422A (zh) * 2006-05-23 2009-05-06 英特尔公司 用于无线网络的毫米波片透镜阵列天线系统
US8149178B2 (en) 2006-05-23 2012-04-03 Intel Corporation Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors
US8193994B2 (en) 2006-05-23 2012-06-05 Intel Corporation Millimeter-wave chip-lens array antenna systems for wireless networks
US8395558B2 (en) 2006-05-23 2013-03-12 Intel Corporation Millimeter-wave reflector antenna system and methods for communicating using millimeter-wave signals
WO2007136289A1 (fr) 2006-05-23 2007-11-29 Intel Corporation Systèmes d'antennes à réseau de puces et de lentilles à ondes millimétriques pour réseaux sans fil
US8320942B2 (en) 2006-06-13 2012-11-27 Intel Corporation Wireless device with directional antennas for use in millimeter-wave peer-to-peer networks and methods for adaptive beam steering
EP2471296A1 (fr) * 2009-08-28 2012-07-04 Belair Networks Inc. Antenne souterraine pour réseau local sans fil (wlan) ou application cellulaire
EP2471296A4 (fr) * 2009-08-28 2014-08-13 Belair Networks Inc Antenne souterraine pour réseau local sans fil (wlan) ou application cellulaire
EP3352294A1 (fr) * 2009-08-28 2018-07-25 Ericsson WiFi Inc. Antenne de voûte pour réseaux wlan ou application cellulaire
WO2021144626A1 (fr) * 2020-01-17 2021-07-22 Telefonaktiebolaget Lm Ericsson (Publ) Formateur/redirecteur de faisceau de guide d'ondes diélectrique à ondes millimétriques

Also Published As

Publication number Publication date
JPS62110303A (ja) 1987-05-21
IL79773A0 (en) 1986-11-30
EP0212963A3 (fr) 1988-08-10

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Inventor name: MCEWEN, COLIN DOUGAL

Inventor name: PEARSON, ALAN

Inventor name: NORRIS, ANDREW PETER

Inventor name: WADDOUP, WILLIAM DAVID