EP0534862A1 - Antenne mit elektronisch gesteuerter Ablenkung - Google Patents

Antenne mit elektronisch gesteuerter Ablenkung Download PDF

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Publication number
EP0534862A1
EP0534862A1 EP92402640A EP92402640A EP0534862A1 EP 0534862 A1 EP0534862 A1 EP 0534862A1 EP 92402640 A EP92402640 A EP 92402640A EP 92402640 A EP92402640 A EP 92402640A EP 0534862 A1 EP0534862 A1 EP 0534862A1
Authority
EP
European Patent Office
Prior art keywords
antenna
antenna according
plane
directions
scanning
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.)
Granted
Application number
EP92402640A
Other languages
English (en)
French (fr)
Other versions
EP0534862B1 (de
Inventor
Bruno Vidal Saint-Andre
Thierry Dusseux
Gilles Drouin
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 Espace Industries SA
Original Assignee
Alcatel Espace Industries SA
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 Alcatel Espace Industries SA filed Critical Alcatel Espace Industries SA
Publication of EP0534862A1 publication Critical patent/EP0534862A1/de
Application granted granted Critical
Publication of EP0534862B1 publication Critical patent/EP0534862B1/de
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
    • 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
    • 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
    • H01Q19/10—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 reflecting surfaces
    • H01Q19/12—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 reflecting surfaces wherein the surfaces are concave
    • H01Q19/17—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 reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • H01Q19/175—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 reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements arrayed along the focal line of a cylindrical focusing surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture

Definitions

  • the present invention relates to an antenna with electronic scanning, on board a mobile vehicle, for example an airplane, a satellite, etc., along a trajectory situated in a plane, and comprising at least two simultaneous directions of sight situated in said plane.
  • the invention relates in particular, but not exclusively, to a radar type antenna on board a scrolling satellite to allow terrestrial observation.
  • the secondary lobe purity must be greater than 30 dB.
  • the object of the present invention is therefore to produce an electronic scanning antenna making it possible to obtain the specificities of the desired secondary lobe.
  • said antenna comprises a scanning direction perpendicular to the plane containing the trajectory of the satellite.
  • the antenna may advantageously include the focusing means produced from a generative shape making it possible to favor at least two directions in the plane of the trajectory of the satellite and extended to a cylindrical shape in space by translation in the scanning direction. ; and means of transmission which are linear networks.
  • the invention thus consists in carrying out an optimization of a two-dimensional curve, and in extending it in three dimensions by a cylindrical projection, by making it possible to separate the means of action in the first two directions relative to those of the third direction.
  • the invention makes it possible to improve the radioelectric performance of the antennas of the known art for beam deflections possibly very far from the Nadir (several tens of beam widths).
  • the antenna according to the invention is, as indicated above, particularly suitable for being used as a radar antenna on board a traveling satellite used for terrestrial observation.
  • the antenna 10, as shown in FIG. 1 is, for example, on board a traveling satellite 11, the trajectory 12 of which is situated in a plane 13. It delivers two brushes 14 and 15: a brush 14 front located for example at 15 ° with respect to the Nadir 16 in the direction of travel of the satellite 11, and a rear brush 15 situated for example at 15 ° with respect to the Nadir 16 in the direction opposite to that of the travel of the satellite.
  • This antenna 10 also makes it possible to scan the terrestrial zones 17 and 18 situated in front and behind of said satellite in a direction 19 perpendicular to the plane 13.
  • the antenna as shown in Figure 2 is a reflector 10 ′ which has a generative shape making it possible to optimize its performance in two directions 14 and 15.
  • the scanning is carried out in this direction using two phased linear networks 20 and 21 located at the pseudo-foci of this reflector.
  • FIG. 3 illustrates the fact that the antenna of the invention also works in transmission. It then takes the form of a 10 ⁇ lens.
  • This lens may be passive or active, dielectric or metallic.
  • the scanning function in direction 19 can be replaced by an equivalent function of reconfigurable formed lobe (known as "fan beam” in English), in the same direction 19.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Prostheses (AREA)
EP19920402640 1991-09-26 1992-09-25 Antenne mit elektronisch gesteuerter Ablenkung Expired - Lifetime EP0534862B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9111876 1991-09-26
FR9111876A FR2681982B1 (fr) 1991-09-26 1991-09-26 Antenne a balayage electronique.

Publications (2)

Publication Number Publication Date
EP0534862A1 true EP0534862A1 (de) 1993-03-31
EP0534862B1 EP0534862B1 (de) 1996-04-24

Family

ID=9417330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920402640 Expired - Lifetime EP0534862B1 (de) 1991-09-26 1992-09-25 Antenne mit elektronisch gesteuerter Ablenkung

Country Status (4)

Country Link
EP (1) EP0534862B1 (de)
CA (1) CA2079193A1 (de)
DE (1) DE69210154D1 (de)
FR (1) FR2681982B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640844A1 (de) * 1993-08-23 1995-03-01 Alcatel Espace Doppelstrahlantenne mit elektronischer Strahlablenkung
US10050726B2 (en) 2014-02-11 2018-08-14 Vega Grieshaber Kg Fill level and topology determination

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191170A (en) * 1963-01-07 1965-06-22 Gen Instrument Corp Contour mapping system
GB1425142A (en) * 1973-04-03 1976-02-18 Hazeltine Corp Antenna system for radiating multiple planar beams
US4315262A (en) * 1979-04-26 1982-02-09 Bell Telephone Laboratories, Incorporated Satellite communication system with a plurality of limited scan spot beams
FR2529347A1 (fr) * 1982-06-29 1983-12-30 Europ Agence Spatiale Methode de teledetection a faible consommation d'energie
EP0389111A2 (de) * 1989-03-21 1990-09-26 British Aerospace Public Limited Company Radarvorrichtung mit synthetischer Apertur und Verfahren zur Erzeugung eines Radarbildes von einer Planetenoberfläche mit einer solchen Vorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191170A (en) * 1963-01-07 1965-06-22 Gen Instrument Corp Contour mapping system
GB1425142A (en) * 1973-04-03 1976-02-18 Hazeltine Corp Antenna system for radiating multiple planar beams
US4315262A (en) * 1979-04-26 1982-02-09 Bell Telephone Laboratories, Incorporated Satellite communication system with a plurality of limited scan spot beams
FR2529347A1 (fr) * 1982-06-29 1983-12-30 Europ Agence Spatiale Methode de teledetection a faible consommation d'energie
EP0389111A2 (de) * 1989-03-21 1990-09-26 British Aerospace Public Limited Company Radarvorrichtung mit synthetischer Apertur und Verfahren zur Erzeugung eines Radarbildes von einer Planetenoberfläche mit einer solchen Vorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HUANG J., YAHYA RAHMAT-SAMII.: "FAN BEAM GENERATED BY A LINEAR-ARRAY FED PARABOLIC REFLECTOR.", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION., IEEE SERVICE CENTER, PISCATAWAY, NJ., US, vol. 38., no. 07., 1 July 1990 (1990-07-01), US, pages 1046 - 1053., XP000137530, ISSN: 0018-926X, DOI: 10.1109/8.55616 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0640844A1 (de) * 1993-08-23 1995-03-01 Alcatel Espace Doppelstrahlantenne mit elektronischer Strahlablenkung
FR2709380A1 (fr) * 1993-08-23 1995-03-03 Alcatel Espace Antenne bi-faisceaux à balayage électronique.
US5652597A (en) * 1993-08-23 1997-07-29 Alcatel Espace Electronically-scanned two-beam antenna
US10050726B2 (en) 2014-02-11 2018-08-14 Vega Grieshaber Kg Fill level and topology determination
EP3105815B1 (de) * 2014-02-11 2020-04-15 VEGA Grieshaber KG Füllstand- und topologiebestimmung

Also Published As

Publication number Publication date
EP0534862B1 (de) 1996-04-24
CA2079193A1 (fr) 1993-03-27
FR2681982A1 (fr) 1993-04-02
FR2681982B1 (fr) 1993-11-19
DE69210154D1 (de) 1996-05-30

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