EP0895303A1 - Système d'antennes directionnelles à polarisation croisée - Google Patents
Système d'antennes directionnelles à polarisation croisée Download PDFInfo
- Publication number
- EP0895303A1 EP0895303A1 EP98401746A EP98401746A EP0895303A1 EP 0895303 A1 EP0895303 A1 EP 0895303A1 EP 98401746 A EP98401746 A EP 98401746A EP 98401746 A EP98401746 A EP 98401746A EP 0895303 A1 EP0895303 A1 EP 0895303A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- conductive elements
- conductive
- cell
- dipoles
- 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.)
- Granted
Links
- 230000010287 polarization Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 2
- 238000005388 cross polarization Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/108—Combination of a dipole with a plane reflecting surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
Definitions
- the present invention relates to an antenna system directional with cross polarization, intended in particular to cell phone.
- EP-A-0 730 319 describes a system directional antennas, comprising a planar reflector and an array of antennas carried by this reflector.
- Each of antennas is a dipole defined by two conductive elements straight, which are mounted on two supports for their fixing to the reflector and are connected to the + and - terminals of a source feed.
- the network antennas are aligned according to one of the axes of the reflector. They are simple polarization in the network.
- US-A-5,030,962 describes a structure directional antennas with cross polarization, comprising a substrate of high electrical resistivity, in particularly in silicone, a network of antennas formed on the substrate and a dielectric lens associated with the assembly.
- Each antenna has two dipoles and four diodes interconnecting the dipoles two by two. The diodes are mounted in a loop thus connecting the four branches of two dipoles, two opposite diodes on the loop being of opposite polarity to that of the other two.
- the passive elements defined by dipoles and active elements such as diodes and any other components associated with the dipoles are made by photoengraving techniques multilayer on the substrate.
- the branches of the dipoles each have the shape of a straight and narrow conductive strip, or variant of a triangular conductive plate and are two two opposite, the respective axes of the two dipoles being orthogonal.
- the object of the present invention is to provide compactly a directional antenna system with cross polarization, suitable for mobile telephony.
- Its object is an antenna system cross-polarized directional, comprising a substantially planar and rectangular reflector and at least a radiating cell carried by said reflector, each cell with at least two first elements conductors mounted head to tail and powered by a first external source of energy by forming a first dipole, characterized in that each radiating cell has two second conductive elements mounted identically to first and powered by a second external source of energy by forming a second dipole, and in that said conductive elements are elements folded in V-shaped and mounted orthogonally the second by compared to the former.
- the radiant cell according to the invention has two antennas directional 1 and 2, cross-polarized.
- Each of these two antennas constitutes a dipole formed by a couple of V-shaped conductive elements 1A and 1B or 2A and 2B depending on the dipole.
- the two conductive elements of the same dipole are head to tail.
- the two conductive elements of one of two dipoles are orthogonal to those of the other.
- the conductive elements of dipole 1 are connected to a cable coaxial 3, for their supply from a primary source outdoor energy.
- the conductive elements of dipole 2 are also connected to another coaxial cable 4, for their supply from a second external source of energy, which is independent of the former.
- the polarities of the dipoles are noted + and - respectively in look at the two conductive elements of each of them.
- each conductive element of dipoles has the advantage of minimizing the distant effect of these orthogonal components which tend to cancel each other out at of them.
- the distant effect orthogonal components remains important. Indeed in such a dipole, the current lines flare at proximity of the edges of each full V to follow these edges and make the orthogonal components no longer in phase opposition.
- V-shaped conductive elements of the two dipoles are preferably V-folded plates. This realization using plates and not conductors wire type electrics increase bandwidth dipoles.
- the opening of the V of each of the conductive elements is preferably between 20 ° and 80 °. She is advantageously from 40 to 50 ° approximately, to allow a antenna impedance optimization.
- the orientation of the Vés by relative to the horizontal or the vertical is chosen so that neither of polarizations 5 and 6 have this horizontal direction, in order to optimize the transmission characteristics of the two dipoles.
- this orientation of the Vés is such that the directions of polarizations 4 and 5 are at + 45 ° and - 45 ° respectively with respect to the vertical.
- V-conductors each have the two branches of each Vé but also a 9A or 9B leg transverse to the Vee and leaving from the base of it.
- the two branches of the V and the leg forms the same piece, the tab itself being folded at the same time as the branches.
- each dipole is approximately equal to half of the wavelength of the radiated energy.
- the paws such as 9A, or 9B are in length substantially equal to a quarter of the wavelength and play the role of current balancers giving the polarities + and - to the two elements of the same powered dipole. So the electrical power supplied by the connected energy source at one of the dipoles is transformed into radiofrequency waves radiated by the dipole according to a broadband diagram desired.
- the system antenna shown includes an array of dual antennas polarization, which are identical to each other and to the cell in Figure 1 and are all designated under the same global reference 10, this global reference being shown in correspondence in Figures 1 and 2.
- This array of antennas or radiating cells 10 is carried by a rectangular planar reflector 11. It is arranged according to the longitudinal axis of the reflector. It has four cells in the example shown. Each cell is powered by its two cables 3 and 4 connected to the two dipoles of the cell.
- the reflector has a width close to one wavelength of the energy radiated by the antennas.
- cables 3 of these different cells are connected to a cable main 13 through an energy divider 15 and similarly cables 4 are connected to another cable main 14 through a second energy divider 16.
- These two main cables 13 and 14 are also connected with two coaxial connectors 17 and 18, carried by one of the ends of the reflector and provided for both sources of energy assigned to the dipoles of the different cells 10.
- each of the cells 10 is fixed to the reflector using a conductive part 19, provided in end of the legs such as 9A and 9B of the two dipoles and it even attached to the reflector.
- This part 19 is circular in shape and relatively flat. It has four bores in one of its faces, in which are embedded and welded the ends of the four legs such as 9A and 9B and is secured by screw to the reflector.
- V-shaped conductive elements with their tabs individual and the fixing part 19 are made of brass.
- the cross-polarized antenna system is also provided with at least one metal partition wall such that 21, between the cells or groups of cells of the network.
- the single wall 21 used in the antenna system according to the Figures 3 and 4 is provided along the transverse axis of the reflector 11. It is fixed to the reflector, being protruding on this one. It avoids direct coupling between the radiating elements located on either side of it.
- this antenna system is additionally equipped with an overhead coupling compensator indirect between the dipoles, this resulting indirect coupling for a large part of the coupling between the fields from stray reflections on the reflector and more particularly on its longitudinal edges provided generally folded and marked 11A and 11B.
- the coupling compensator includes two profiles or angles 23A, 23B. These angles are mounted on the rectangular flat reflector parallel to the edges longitudinal, and arranged symmetrically on both sides and on the other of the longitudinal axis along which the four cells are aligned.
- the two angles provide surfaces additional reflective to the edges, so that the recombination of the reflected electric fields by the edges and by the angles leads to a reduction sensitive of the coupling between the two polarizations of the antenna system.
- the system antennas have a bandwidth from 872 MHz to 960 MHz centered around 915 MHz.
- electromagnetic power is sent by an energy source on dipoles 1A - 1B of four identical cells 10 whose polarization forms a angle of + 45 degrees with the longitudinal edge 11A.
- the dipoles 2A - 2B of cells 10 whose polarization forms an angle of -45 degrees with the longitudinal edge 11B detect a power due to coupling, which in the presence of two angles described in the two previous examples, is of the order of a thousandth of the power sent by the source, while in the absence of the angles, it is the order of a hundredth.
- the two angles thus allow divide by ten the coupling between the two polarizations antenna system crosses from 20 decibel (dB) at 30 dB.
- the compensator can understand on each side of the four cells several angles such as those mentioned above or a profile to several edges such as those of the aforementioned angles.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
- chaque élément conducteur est constitué par une plaque pliée en Vé ;
- les éléments conducteurs en Vé ont chacun une ouverture comprise entre 20 et 80°, de préférence entre 40 et 50° environ ;
- les éléments conducteurs en Vé présentent une orientation selon un angle différent de zéro par rapport à l'horizontale, pour présenter une direction de polarisation décalée angulairement par rapport à l'horizontale ;
- la direction de polarisation est de + 45° et - 45° environ, pour les éléments conducteurs de l'un et l'autre des dipôles respectivement ;
- chaque élément conducteur présente une patte conductrice, d'une part solidaire de la base du Vé et saillante d'un côté du Vé sur une longueur sensiblement égale au quart de la longueur d'onde rayonnée par le dipôle correspondant et d'autre part fixée sur ledit réflecteur ; avantageusement, il est prévu une pièce conductrice de fixation des pattes des éléments conducteurs d'une même cellule sur le réflecteur, lesdites pattes ayant leurs extrémités encastrées dans ladite pièce de fixation et soudées sur celle-ci ; en outre, il peut être prévu une pièce de solidarisation, en matériau de résistivité électrique élevée, solidarisant entre eux lesdits éléments conducteurs d'une même cellule ;
- un réseau de cellules est monté selon l'axe longitudinal du réflecteur ;
- deux câbles principaux sont d'une part reliés respectivement à deux connecteurs coaxiaux prévus sur l'une des extrémités du réflecteur et affectés auxdites première et deuxième sources, et d'autre part reliés respectivement à deux diviseurs d'énergie eux mêmes reliés respectivement à des premiers et des deuxièmes câbles affectés à l'alimentation des deux dipôles de différentes cellules ;
- le réflecteur porte des profilés montés parallèles à l'axe longitudinal et disposés symétriquement de part et d'autre du réseau de cellules pour former un compensateur de couplage.
- la figure 1 est une vue de face d'une cellule d'antennes directionnelles à double polarisation, selon l'invention,
- la figure 2 est une de côté de la cellule selon la figure 1,
- la figure 3 est une vue de face d'un système à réseau d'antennes selon l'invention,
- la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 3,
- la figure 5 est une vue en coupe simplifiée du réseau d'antennes de la figure 3 montrant deux cornières selon un premier mode de réalisation,
- la figure 6 est une vue en coupe simplifiée du réseau d'antennes de la figure 3 montrant deux cornières selon un deuxième mode de réalisation.
- largeur du réflecteur 250 mm
- hauteur de chaque bord 32 mm
- hauteur de l'arête de chaque cornière 35 mm
- distance de l'arête au bord le plus proche 84 mm
- largeur du réflecteur 300 mm
- hauteur de chaque bord 48 mm
- hauteur de l'arête de chaque cornière 20 mm
- distance de l'arête au bord le plus proche 128 mm
- largeur du replat 37 mm.
Claims (14)
- Système d'antennes directionnelles à polarisation croisée, comportant un réflecteur (11) sensiblement plan et rectangulaire et au moins une cellule rayonnante (10) portée par ledit réflecteur, chaque cellule comportant au moins deux premiers éléments conducteurs (1A, 1B) montés tête-bêche et alimentés par une première source extérieure d'énergie en formant un premier dipôle (1), caractérisé en ce que chaque cellule rayonnante comporte deux deuxièmes éléments conducteurs (2A-2B) montés identiquement aux premiers et alimentés par une deuxième source extérieure d'énergie en formant un deuxième dipôle, et en ce que lesdits éléments conducteurs (1A-1B, 2A, 2B) sont des éléments pliés en forme de Vé et montés orthogonalement les deuxièmes par rapport aux premiers.
- Système selon la revendication 1, caractérisé en ce que chaque élément conducteur est constitué par une plaque pliée en Vé.
- Système selon l'une des revendications 1 et 2, caractérisé en ce que lesdits éléments conducteurs (1A-1B, 2A, 2B) en Vé ont chacune une ouverture comprise entre 20 et 80°.
- Système selon la revendication 3, caractérisé en ce que ladite ouverture est choisie comprise entre 40 et 50° environ.
- Système selon l'une des revendications 1 à 4 caractérisé en ce que lesdits éléments conducteurs en Vé présentent une orientation selon un angle différent de zéro par rapport à l'horizontale, pour présenter une direction de polarisation (5, 6) décalée angulairement par rapport à l'horizontale.
- Système selon la revendication 5, caractérisé en ce que la direction de polarisation est de + 45° et - 45° environ, pour les éléments conducteurs de l'un et l'autre des dipôles (1, 2) respectivement.
- Système selon l'une des revendications 1 à 6, caractérisé en ce que chaque élément conducteur présente une patte conductrice (9A, 9B), d'une part solidaire de la base du Vé et saillante d'un côté du Vé sur une longueur sensiblement égale au quart de la longueur d'onde rayonnée par le dipôle correspondant et d'autre part fixée sur ledit réflecteur.
- Système selon la revendication 7, caractérisé en ce qu'il comporte une pièce conductrice (19) de fixation des pattes des éléments conducteurs d'une même cellule (10) sur le réflecteur (11), lesdites pattes ayant leurs extrémités encastrées dans ladite pièce de fixation et soudées sur celle-ci.
- Système selon l'une des revendications 7 et 8, caractérisé en ce qu'il comporte une pièce de solidarisation (20), en matériau de résistivité électrique élevée, solidarisant entre eux lesdits éléments conducteurs (lA-lB, 2A-2B) d'une même cellule.
- Système selon l'une des revendications 1 à 9, caractérisé en ce qu'il comporte un réseau de cellules (10), monté selon l'axe longitudinal du réflecteur.
- Système selon la revendication 11, caractérisé en ce qu'il comporte deux câbles principaux (13, 14) d'une part reliés respectivement à deux connecteurs coaxiaux (17, 18) prévus sur l'une des extrémités du réflecteur et affectés auxdites première et deuxième sources, et d'autre part reliés respectivement à deux diviseurs d'énergie (15, 16) eux mêmes reliés respectivement à des premiers et des deuxièmes câbles (3, 4) affectés à l'alimentation des deux dipôles des différentes cellules (10).
- Système selon la revendication 10 ou 11, caractérisé en ce que le réflecteur (11) comporte deux bords longitudinaux (11A, 11B) et des profilés (23A, 23B) montés parallèlement à l'axe longitudinal et symétriquement de part et d'autre du réseau de cellules (10).
- Système selon la revendication 12, caractérisé en ce que chaque profilé (23A, 23B) comprend une base (24A, 24B) fixée sur le réflecteur (11) et au moins une arête (26A, 26B) pliée d'un angle (∝) inférieur à 180 degrés par rapport à la base.
- Système selon la revendication 13, caractérisé en ce que chaque profilé comprend un replat (28A, 28B) plié par rapport à l'arête et dirigé vers un bord longitudinal (11A, 11B).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9709566A FR2766626B1 (fr) | 1997-07-28 | 1997-07-28 | Systeme d'antennes directionnelles a polarisation croisee |
| FR9709566 | 1997-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0895303A1 true EP0895303A1 (fr) | 1999-02-03 |
| EP0895303B1 EP0895303B1 (fr) | 2005-02-02 |
Family
ID=9509704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98401746A Expired - Lifetime EP0895303B1 (fr) | 1997-07-28 | 1998-07-09 | Système d'antennes directionnelles à polarisation croisée |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6025798A (fr) |
| EP (1) | EP0895303B1 (fr) |
| AT (1) | ATE288624T1 (fr) |
| CA (1) | CA2242705C (fr) |
| DE (1) | DE69828848T2 (fr) |
| FR (1) | FR2766626B1 (fr) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0973231A3 (fr) * | 1998-07-06 | 2001-04-25 | Ace Technology | Antenne directive à double polarisation avec des réflecteurs d'étranglement pour minimiser le rayonnement latéral |
| WO2005119835A1 (fr) * | 2004-05-27 | 2005-12-15 | Kathrein-Werke Kg | Antenne de radiotelephonie mobile a element de formation de faisceau |
| FR2923323A1 (fr) * | 2007-11-07 | 2009-05-08 | Alcatel Lucent Sas | Antenne a piege reflechissant |
| EP2156510A4 (fr) * | 2007-04-05 | 2010-11-17 | Ericsson Telefon Ab L M | Regulateur de largeur de faisceau dependant de la polarisation |
| FR2950745A1 (fr) * | 2009-09-30 | 2011-04-01 | Alcatel Lucent | Element rayonnant d'antenne a double polarisation |
| EP2201697A4 (fr) * | 2007-10-15 | 2013-08-21 | Jaybeam Wireless | Antenne de station de base avec des structures de mise en forme de faisceau |
| WO2020190863A1 (fr) * | 2019-03-21 | 2020-09-24 | Commscope Technologies Llc | Antennes de station de base comprenant des ensembles passifs pour améliorer les performances de discrimination par polarisations croisées |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205337B1 (en) * | 1998-05-06 | 2001-03-20 | Alcatel Canada Inc. | Use of sectorized polarization diversity as a means of increasing capacity in cellular wireless systems |
| FR2808128B1 (fr) * | 2000-04-20 | 2002-07-19 | Cit Alcatel | Antenne monolithique a polarisation croisee |
| US6747606B2 (en) * | 2002-05-31 | 2004-06-08 | Radio Frequency Systems Inc. | Single or dual polarized molded dipole antenna having integrated feed structure |
| EP1667278A1 (fr) * | 2004-11-23 | 2006-06-07 | Alcatel | Antenne pour Station de base à éléments radiateur à double polarisation et à réflecteur profilé |
| WO2006114455A1 (fr) * | 2005-04-25 | 2006-11-02 | Radiacion Y Microondas, S.A. | Antenne cavite excitee par un ou plusieurs dipoles |
| US20080231528A1 (en) * | 2005-04-25 | 2008-09-25 | Ramon Guixa Arderiu | Cavity Antenna Excited with One or Several Dipoles |
| WO2008146202A1 (fr) * | 2007-06-01 | 2008-12-04 | Koninklijke Philips Electronics, N.V. | Antennes de sonde à ultrasons sans fil |
| US8593369B2 (en) * | 2008-11-12 | 2013-11-26 | Navico Holding As | Antenna assembly |
| US8570233B2 (en) | 2010-09-29 | 2013-10-29 | Laird Technologies, Inc. | Antenna assemblies |
| KR101711150B1 (ko) | 2011-01-31 | 2017-03-03 | 주식회사 케이엠더블유 | 이동통신 기지국용 이중편파 안테나 및 이를 이용한 다중대역 안테나 시스템 |
| US9966664B2 (en) * | 2012-11-05 | 2018-05-08 | Alcatel-Lucent Shanghai Bell Co., Ltd. | Low band and high band dipole designs for triple band antenna systems and related methods |
| TWM485521U (zh) * | 2014-05-09 | 2014-09-01 | Gemtek Technology Co Ltd | 多頻段天線 |
| SG10201505215SA (en) * | 2015-06-30 | 2017-01-27 | Matsing Pte Ltd | Dual Polarized Radiator For Lens Antennas |
| US11128055B2 (en) * | 2016-06-14 | 2021-09-21 | Communication Components Antenna Inc. | Dual dipole omnidirectional antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605102A (en) * | 1970-03-10 | 1971-09-14 | Talmadge F Frye | Directable multiband antenna |
| EP0178877A2 (fr) * | 1984-10-17 | 1986-04-23 | British Gas Corporation | Equipement pour le relèvement par réflexion de micro-ondes |
| US5434575A (en) * | 1994-01-28 | 1995-07-18 | California Microwave, Inc. | Phased array antenna system using polarization phase shifting |
| WO1997022159A1 (fr) * | 1995-12-14 | 1997-06-19 | Electromagnetic Sciences, Inc. | Antenne reseau a double polarisation avec commande centrale de polarisation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062019A (en) * | 1976-04-02 | 1977-12-06 | Rca Corporation | Low cost linear/circularly polarized antenna |
| EP0186455A3 (fr) * | 1984-12-20 | 1987-11-25 | The Marconi Company Limited | Réseau de dipôles |
| US5280297A (en) * | 1992-04-06 | 1994-01-18 | General Electric Co. | Active reflectarray antenna for communication satellite frequency re-use |
-
1997
- 1997-07-28 FR FR9709566A patent/FR2766626B1/fr not_active Expired - Fee Related
-
1998
- 1998-07-09 DE DE69828848T patent/DE69828848T2/de not_active Expired - Lifetime
- 1998-07-09 EP EP98401746A patent/EP0895303B1/fr not_active Expired - Lifetime
- 1998-07-09 AT AT98401746T patent/ATE288624T1/de not_active IP Right Cessation
- 1998-07-24 US US09/121,855 patent/US6025798A/en not_active Expired - Lifetime
- 1998-07-27 CA CA002242705A patent/CA2242705C/fr not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605102A (en) * | 1970-03-10 | 1971-09-14 | Talmadge F Frye | Directable multiband antenna |
| EP0178877A2 (fr) * | 1984-10-17 | 1986-04-23 | British Gas Corporation | Equipement pour le relèvement par réflexion de micro-ondes |
| US5434575A (en) * | 1994-01-28 | 1995-07-18 | California Microwave, Inc. | Phased array antenna system using polarization phase shifting |
| WO1997022159A1 (fr) * | 1995-12-14 | 1997-06-19 | Electromagnetic Sciences, Inc. | Antenne reseau a double polarisation avec commande centrale de polarisation |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0973231A3 (fr) * | 1998-07-06 | 2001-04-25 | Ace Technology | Antenne directive à double polarisation avec des réflecteurs d'étranglement pour minimiser le rayonnement latéral |
| WO2005119835A1 (fr) * | 2004-05-27 | 2005-12-15 | Kathrein-Werke Kg | Antenne de radiotelephonie mobile a element de formation de faisceau |
| EP2156510A4 (fr) * | 2007-04-05 | 2010-11-17 | Ericsson Telefon Ab L M | Regulateur de largeur de faisceau dependant de la polarisation |
| US8970444B2 (en) | 2007-04-05 | 2015-03-03 | Telefonaktiebolaget L M Ericsson (Publ) | Polarization dependent beamwidth adjuster |
| EP2201697A4 (fr) * | 2007-10-15 | 2013-08-21 | Jaybeam Wireless | Antenne de station de base avec des structures de mise en forme de faisceau |
| FR2923323A1 (fr) * | 2007-11-07 | 2009-05-08 | Alcatel Lucent Sas | Antenne a piege reflechissant |
| EP2058901A1 (fr) * | 2007-11-07 | 2009-05-13 | Alcatel Lucent | Antenne à piège réfléchissant |
| FR2950745A1 (fr) * | 2009-09-30 | 2011-04-01 | Alcatel Lucent | Element rayonnant d'antenne a double polarisation |
| EP2309596A1 (fr) * | 2009-09-30 | 2011-04-13 | Alcatel Lucent | Élément de rayonnement d'antenne à double polarisation |
| WO2020190863A1 (fr) * | 2019-03-21 | 2020-09-24 | Commscope Technologies Llc | Antennes de station de base comprenant des ensembles passifs pour améliorer les performances de discrimination par polarisations croisées |
| US11183775B2 (en) | 2019-03-21 | 2021-11-23 | Commscope Technologies Llc | Base station antennas having parasitic assemblies for improving cross-polarization discrimination performance |
Also Published As
| Publication number | Publication date |
|---|---|
| US6025798A (en) | 2000-02-15 |
| ATE288624T1 (de) | 2005-02-15 |
| DE69828848T2 (de) | 2006-04-06 |
| CA2242705A1 (fr) | 1999-01-28 |
| CA2242705C (fr) | 2006-05-30 |
| FR2766626A1 (fr) | 1999-01-29 |
| EP0895303B1 (fr) | 2005-02-02 |
| FR2766626B1 (fr) | 1999-10-01 |
| DE69828848D1 (de) | 2005-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0895303B1 (fr) | Système d'antennes directionnelles à polarisation croisée | |
| EP2869396B1 (fr) | Répartiteur de puissance comportant un coupleur en Té dans le plan E, réseau rayonnant et antenne comportant un tel réseau rayonnant | |
| FR2619658A1 (fr) | Antenne a fentes | |
| FR2652453A1 (fr) | Antenne coaxiale a fentes du type a alimentation a ondes progressives. | |
| FR2646564A1 (fr) | Systeme d'antenne plate a fentes pour onde en mode te | |
| FR2677491A1 (fr) | Antenne hyperfrequence elementaire bipolarisee. | |
| EP1516393A1 (fr) | Dispositif rayonnant bi-bande a double polarisation | |
| EP1181744B1 (fr) | Antenne a polarisation verticale | |
| FR2533777A1 (fr) | Oscillateur hyperfrequence de puissance | |
| EP1152487B1 (fr) | Antenne monolithique à polarisation orthogonale | |
| FR2638288A1 (fr) | Antenne a fentes | |
| EP1152483B1 (fr) | Elément rayonnant hyperfréquence bi-bande | |
| EP0456579A1 (fr) | Antenne orientable plane, fonctionnant en micro-ondes | |
| EP0065467A1 (fr) | Radiateur d'onde électromagnétique polarisée circulairement | |
| CA1324657C (fr) | Antenne omnidirectionnelle, notamment pour l'emission de signaux de radiodiffusion ou de television dans la bande des ondes decimetriques, et systeme rayonnant forme d'un groupement de ces antennes | |
| EP1949496B1 (fr) | Systeme d'antenne plate a acces direct en guide d'ondes | |
| EP0156684A1 (fr) | Elément rayonnant des ondes électromagnétiques, et son application à une antenne à balayage électronique | |
| EP0407258B1 (fr) | Distributeur d'énergie hyperfréquence pouvant rayonner directement | |
| FR2518321A1 (fr) | Ensemble rayonnant a deux antennes superposees travaillant dans une meme gamme de frequences | |
| EP4572015A1 (fr) | Antenne réseau améliorée du type comportant une pluralité d'éléments rayonnants planaires alimentés en série | |
| EP2080248A1 (fr) | Dispositif de couplage fente / pastille ellipsoïdale pour l'alimentation directe par guide d'ondes d'une antenne plate | |
| EP0429338A1 (fr) | Antenne à polarisation circulaire, notamment pour réseau d'antennes | |
| FR2705836A1 (fr) | Antenne radioélectrique omnidirectionnelle et son application à un répondeur radar. | |
| FR3151945A1 (fr) | Antenne à réseau transmetteur | |
| FR2703516A1 (fr) | Antenne à ondes progressives. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE DK ES GB IE IT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCATEL |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCATEL |
|
| 17P | Request for examination filed |
Effective date: 19990803 |
|
| AKX | Designation fees paid |
Free format text: AT DE DK ES GB IE IT SE |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE DK GB SE |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT DE DK ES GB IE IT SE |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE DK ES GB IE IT SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050202 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |
|
| REF | Corresponds to: |
Ref document number: 69828848 Country of ref document: DE Date of ref document: 20050310 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050502 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050502 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050513 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050425 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20051103 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20131114 AND 20131120 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20150721 Year of fee payment: 18 Ref country code: GB Payment date: 20150721 Year of fee payment: 18 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150727 Year of fee payment: 18 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69828848 Country of ref document: DE |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160709 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160709 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160709 |