FR2939515B1 - Reflecteur radar a signature variable sur un large domaine angulaire et frequentiel - Google Patents

Reflecteur radar a signature variable sur un large domaine angulaire et frequentiel

Info

Publication number
FR2939515B1
FR2939515B1 FR0806840A FR0806840A FR2939515B1 FR 2939515 B1 FR2939515 B1 FR 2939515B1 FR 0806840 A FR0806840 A FR 0806840A FR 0806840 A FR0806840 A FR 0806840A FR 2939515 B1 FR2939515 B1 FR 2939515B1
Authority
FR
France
Prior art keywords
frequency domain
wide angular
signature over
radar reflector
reflector
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.)
Active
Application number
FR0806840A
Other languages
English (en)
Other versions
FR2939515A1 (fr
Inventor
Roy Naneix Isabelle Le
Michele Labeyrie
Thierry Arreteau
Jean Perrot
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.)
Thales SA
Original Assignee
Thales 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 Thales SA filed Critical Thales SA
Priority to FR0806840A priority Critical patent/FR2939515B1/fr
Publication of FR2939515A1 publication Critical patent/FR2939515A1/fr
Application granted granted Critical
Publication of FR2939515B1 publication Critical patent/FR2939515B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/38—Jamming means, e.g. producing false echoes
    • 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
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
    • H01Q15/0066—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces said selective devices being reconfigurable, tunable or controllable, e.g. using switches
    • 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
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
    • 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
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

La présente invention est relative à un réflecteur radar à signature variable sur un large domaine angulaire et fréquentiel qui permette de modifier rapidement (par exemple à une fréquence comprise entre 300 kHz et 1 MHz) la signature du réflecteur. Selon l'invention, ce réflecteur est caractérisé en ce qu'il comporte une lentille de Lüneberg (14) au voisinage du foyer de laquelle est disposée une structure réflectrice à réflectivité variable (15).
FR0806840A 2008-12-05 2008-12-05 Reflecteur radar a signature variable sur un large domaine angulaire et frequentiel Active FR2939515B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0806840A FR2939515B1 (fr) 2008-12-05 2008-12-05 Reflecteur radar a signature variable sur un large domaine angulaire et frequentiel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0806840A FR2939515B1 (fr) 2008-12-05 2008-12-05 Reflecteur radar a signature variable sur un large domaine angulaire et frequentiel

Publications (2)

Publication Number Publication Date
FR2939515A1 FR2939515A1 (fr) 2010-06-11
FR2939515B1 true FR2939515B1 (fr) 2015-10-30

Family

ID=40674649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0806840A Active FR2939515B1 (fr) 2008-12-05 2008-12-05 Reflecteur radar a signature variable sur un large domaine angulaire et frequentiel

Country Status (1)

Country Link
FR (1) FR2939515B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158862A (en) * 1961-08-24 1964-11-24 Sierra Research Corp Wide-angle electrically-modulated reflector
US3703723A (en) * 1970-01-09 1972-11-21 Grumman Aerospace Corp Portable passive reflector
US4419669A (en) * 1971-01-04 1983-12-06 Trw Inc. Controlled scintillation rate decoy
US4905014A (en) * 1988-04-05 1990-02-27 Malibu Research Associates, Inc. Microwave phasing structures for electromagnetically emulating reflective surfaces and focusing elements of selected geometry
US5319373A (en) * 1992-11-13 1994-06-07 Maxwell Robert M Method and apparatus for determining ship position in a television image
US5424737A (en) * 1993-12-22 1995-06-13 United Technologies Corporation Communications retro-reflector
GB2442796A (en) * 2006-10-11 2008-04-16 John Thornton Hemispherical lens with a selective reflective planar surface for a multi-beam antenna

Also Published As

Publication number Publication date
FR2939515A1 (fr) 2010-06-11

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