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1. (WO2007009216) LEAKY WAVE ANTENNA WITH RADIATING STRUCTURE INCLUDING FRACTAL LOOPS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/009216 International Application No.: PCT/CA2006/001127
Publication Date: 25.01.2007 International Filing Date: 10.07.2006
IPC:
H01Q 13/20 (2006.01) ,H01Q 1/36 (2006.01) ,G01S 5/14 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
13
Waveguide horns or mouths; Slot aerials; Leaky-waveguide aerials; Equivalent structures causing radiation along the transmission path of a guided wave
20
Non-resonant leaky-waveguide or transmission-line aerials; Equivalent structures causing radiation along the transmission path of a guided wave
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
36
Structural form of radiating elements, e.g. cone, spiral, umbrella
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
5
Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
02
using radio waves
14
Determining absolute distances from a plurality of spaced points of known location
Applicants:
NOVATEL INC. [CA/CA]; 1120 68th Avenue, N.E. Calgary, Alberta T2D 8M5, CA (AllExceptUS)
KUNYSZ, Waldemar [CA/CA]; CA (UsOnly)
BADGER, Earl [CA/CA]; CA (UsOnly)
PLAMONDON, David [CA/CA]; CA (UsOnly)
Inventors:
KUNYSZ, Waldemar; CA
BADGER, Earl; CA
PLAMONDON, David; CA
Agent:
SMART & BIGGAR; P.O. Box 2999, Station D 900-55 Metcalfe Street Ottawa, Ontario K1P 5Y6, CA
Priority Data:
11/184,67619.07.2005US
Title (EN) LEAKY WAVE ANTENNA WITH RADIATING STRUCTURE INCLUDING FRACTAL LOOPS
(FR) ANTENNE A ONDES DE FUITE DOTEE D'UNE STRUCTURE DE RAYONNEMENT COMPORTANT DES BOUCLES FRACTALES
Abstract:
(EN) An antenna is provided for acquiring RF signals from various satellite ranging systems including GPS, GLONASS, GALILEO and OmniSTAR®. The antenna configuration includes a radiating structure of multi-arm spiral slots terminated with fractal loops. A leaky wave microstrip spiral feed network is used to excite the radiating structure of the antenna. The fixed beam phased array of aperture coupled slots is optimized to receive a right hand polarized signal. The proposed antenna is made out of a single PCB board. The antenna has a very uniform phase and amplitude pattern in the azimuth plane from 1.15 to 1.65 GHz, therefore providing consistent performance at GPS, GLONASS, GALILEO and OmniSTAR® frequencies. The antenna also has a common phase center at the various frequencies from 1175 MHz to 1610 MHz and substantially the same radiation pattern and axial ratio characteristics.
(FR) L'invention concerne une antenne destinée à l'acquisition de signaux RF de divers systèmes de mesure de distance de satellites comportant GPS, GLONASS, GALILEO et OmniSTAR®. La configuration de l'antenne comporte une structure de rayonnement de fentes en spirale multi-bras et terminées par des boucles fractales. On utilise un réseau d'alimentation en spirale micro à ligne microruban à ondes de fuite pour exciter la structure de rayonnement de l'antenne. Le réseau à commande de phase fixe de fentes couplées par un orifice est optimisé pour recevoir un signal polarisé à droite. L'antenne selon l'invention est constituée d'une seule carte PCB. L'antenne a un motif de phase et d'amplitude très uniforme dans le plan azimutal de 1.15 à 1.65 GHz, ce qui offre une performance consistante des fréquences GPS, GLONASS, GALILEO et OmniSTAR® . Cette antenne a également un centre de phase commun à différentes fréquences de 1175 MHz à 1610 MHz et sensiblement le même motif de rayonnement et les mêmes caractéristiques de rapport axiale.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO20080854EP1905126JP2009502058CA2615539AU2006272392