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1. WO2003007422 - MULTIPOINT ANTENNA DEVICE

Publication Number WO/2003/007422
Publication Date 23.01.2003
International Application No. PCT/SE2002/001138
International Filing Date 13.06.2002
Chapter 2 Demand Filed 07.02.2003
IPC
H01Q 9/16 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
16with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
H01Q 21/24 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
24Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q 21/28 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
28Combinations of substantially independent non-interacting antenna units or systems
CPC
H01Q 21/24
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
24Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
H01Q 21/28
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
21Antenna arrays or systems
28Combinations of substantially independent non-interacting antenna units or systems
H01Q 9/16
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
9Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
04Resonant antennas
16with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Applicants
  • RED SNAKE RADIO TECHNOLOGY AB [SE]/[SE] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NL, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZM, ZW)
  • BERGMAN, Jan [SE]/[SE]
  • CAROZZI, Tobia [IT]/[SE]
  • KARLSSON, Roger [SE]/[SE]
Inventors
  • BERGMAN, Jan
  • CAROZZI, Tobia
  • KARLSSON, Roger
Agents
  • HEDBERG, Åke
Priority Data
0102520-413.07.2001SE
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MULTIPOINT ANTENNA DEVICE
(FR) DISPOSITIF D'ANTENNE MULTIPOINTS
Abstract
(EN) An antenna device is disclosed for making the three-dimensional electromagnetic field available. In a complete system the antenna device will be connected to standard radio equipment such as transceivers, etc, which will allow the antenna signals to be processed. The unique polarization information from the antenna device enables the signal to be processed in order to cancel fading, minimize co-channel interference, determine angle of arrival, perform beam-forming etc. Thus, it is the combination of the antenna device together with custom-built signal processing algorithms which gives the full utility of the invention. In a general form an antenna array is built up by at least two polarization cells (5), each comprising a pair of crossed dipoles (20) for a first and second direction of polarization and a monopole element (25) for a third direction of polarization, a number of polarization cells forming an array column. Every second polarization cell (10) may be turned by 180 degrees. A feeding system (90) with proper interconnections of the polarization cells creates a means for selecting signals of three different polarization directions to thereby making available three-dimensional electromagnetic field information of a present radio frequency wave.
(FR) L'invention concerne un dispositif d'antenne permettant d'obtenir un champ électromagnétique tridimensionnel. Dans un système complet, ledit dispositif d'antenne est connecté à un équipement radio normalisé tel qu'un émetteur-récepteur, etc., permettant de traiter des signaux d'antenne. Les informations de polarisation unique provenant du dispositif d'antenne permettent de traiter lesdits signaux afin de supprimer un évanouissement, de réduire une interférence co-canal, de déterminer un angle d'arrivée, de former un faisceau, etc. C'est donc la combinaison du dispositif d'antenne et d'algorithmes de traitement de signaux personnalisée qui constitue tout l'intérêt de cette invention. En général, un réseau d'antennes est construit à l'aide d'au moins deux cellules de polarisation (5), chacune d'elles comprenant une paire d'antennes dipôles (20) disposées en croix pour obtenir une polarisation dans un premier et un deuxième sens, et un élément monopôle (25) pour obtenir une polarisation dans un troisième sens, un certain nombre de cellules de polarisation formant une colonne de réseau. Chaque seconde cellule de polarisation (10) peut tourner de 180 degrés. Un système d'alimentation (90) à interconnexions de cellules de polarisation appropriées crée un organe permettant de sélectionner des signaux provenant des trois sens de polarisation différents, ce qui permet d'obtenir des informations de champ électromagnétique tridimensionnel d'une onde radio fréquence actuelle.
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