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1. (WO2015047500) RECONFIGURABLE APERTURE FOR MICROWAVE TRANSMISSION AND DETECTION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/047500 International Application No.: PCT/US2014/044092
Publication Date: 02.04.2015 International Filing Date: 25.06.2014
IPC:
H01Q 3/44 (2006.01) ,H01Q 15/02 (2006.01) ,H01Q 19/06 (2006.01) ,G01S 7/03 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
3
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system
44
varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
15
Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices
02
Refracting or diffracting devices, e.g. lens, prism
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
19
Combinations of primary active aerial elements and units with secondary devices, e.g. with quasi-optical devices, for giving the aerial a desired directional characteristic
06
using refracting or diffracting devices, e.g. lens
G PHYSICS
01
MEASURING; TESTING
S
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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
02
of systems according to group G01S13/58
03
Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
Applicants:
RAYTHEON BBN TECHNOLOGIES CORP. [US/US]; 10 Moulton Street Cambridge, Massachusetts 02138, US
Inventors:
CASCIATO, Mark D.; US
REBHOLZ, Matthew John; US
SWARTZ, Justin Wales; US
Agent:
MADDEN, Robert B.; US
Priority Data:
14/039,17927.09.2013US
Title (EN) RECONFIGURABLE APERTURE FOR MICROWAVE TRANSMISSION AND DETECTION
(FR) OUVERTURE RECONFIGURABLE POUR ÉMISSION ET DÉTECTION D'HYPERFRÉQUENCES
Abstract:
(EN) A reconfigurable aperture (200) includes a plurality of metallic particles (220) confined to a volume (216) extending across an aperture area. The metallic particles are repositioned within the volume to form opaque regions in the aperture area. The opaque regions, and transmissive regions between the opaque regions, can form a reconfigurable zone plate that can change the collimation of a microwave beam via diffraction therethrough. The zone plate can be located a fixed distance away from a microwave source and a detector in a housing, so that for any specified wavelength produced by the microwave source, the zone plate can reconfigure to have a focal length equal to the fixed distance. The reconfigurable zone plate can effectively collimate microwaves produced by the microwave source, can direct the collimated microwaves in a specified direction, can receive microwaves returning along the specified direction, and can focus the received microwaves onto the detector.
(FR) L'invention concerne une ouverture reconfigurable qui comporte une pluralité de particules métalliques confinées à un volume s'étendant sur toute une aire d'ouverture. Les particules métalliques sont repositionnées dans le volume afin de former des régions opaques dans l'aire d'ouverture. Les régions opaques, et des régions de transmission entre les régions opaques, peuvent former un réseau zoné reconfigurable qui peut modifier la collimation d'un faisceau hyperfréquence par diffraction à travers lui. Le réseau zoné peut être placé à une distance fixe d'une source hyperfréquence et d'un détecteur dans un boîtier, de manière que, pour n'importe quelle longueur d'onde spécifiée produite par la source hyperfréquence, le réseau zoné puisse être reconfiguré pour avoir une longueur focale égale à la distance fixe. Le réseau zoné reconfigurable peut efficacement collimater des hyperfréquences produites par la source hyperfréquence, peut diriger les hyperfréquences collimatées dans une direction spécifiée, peut recevoir des hyperfréquences revenant en sens inverse dans la direction spécifiée, et peut focaliser les hyperfréquences reçues sur le détecteur.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)