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 frequentielInfo
- 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
Links
- 238000002310 reflectometry Methods 0.000 abstract 1
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).
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)
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 |
-
2008
- 2008-12-05 FR FR0806840A patent/FR2939515B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
FR2939515A1 (fr) | 2010-06-11 |
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