EP0916169B1 - Systeme d'antenne - Google Patents

Systeme d'antenne Download PDF

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Publication number
EP0916169B1
EP0916169B1 EP98930740A EP98930740A EP0916169B1 EP 0916169 B1 EP0916169 B1 EP 0916169B1 EP 98930740 A EP98930740 A EP 98930740A EP 98930740 A EP98930740 A EP 98930740A EP 0916169 B1 EP0916169 B1 EP 0916169B1
Authority
EP
European Patent Office
Prior art keywords
radiating element
plane
slots
reflector
antenna system
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.)
Expired - Lifetime
Application number
EP98930740A
Other languages
German (de)
English (en)
Other versions
EP0916169A1 (fr
Inventor
Roland Gabriel
Max GÖTTL
Georg Klinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kathrein SE
Original Assignee
Kathrein Werke KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP0916169A1 publication Critical patent/EP0916169A1/fr
Application granted granted Critical
Publication of EP0916169B1 publication Critical patent/EP0916169B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to an antenna arrangement for radiation and receiving electromagnetic waves, in particular a dual polarized antenna according to the generic term of claim 1.
  • Horizontally or vertically polarized radiator arrangements for example in the form of in the plane of polarization arranged dipoles, transversely arranged slots or in the form of planar emitter elements, such as Patch spotlights are well known.
  • horizontal polarized radiator arrangements are the Dipoles arranged horizontally.
  • Corresponding radiator arrangements in the form of slots are vertical in this case arranged.
  • Radiator arrangements are also known, which are used for the simultaneous emission and reception of Waves with two orthogonal polarizations can be used can also be referred to as dual polarized antennas be designated.
  • radiator arrangements are used to increase the directivity usually in front of a reflective surface, the so-called reflector arranged. Furthermore, has for Cellular applications an oblique arrangement of dual polarized radiator arrangements, for example + 45 ° or -45 °, proved to be favorable, so that every system emits a linear polarization of + 45 ° or -45 ° and both are in turn orthogonal to each other.
  • + 45 ° / -45 ° dual polarized antennas it is desirable that the orientation of the linear polarization is independent, i.e. at least largely independent of the direction of radiation is.
  • this means for example with + 45 ° and -45 ° can be aligned that also with the vectorial Breakdown of the field strength vector into a horizontal and a vertical portion of the radiation diagrams of the vertical and horizontal individual components have the same width at half maximum how the sum component should have.
  • the radiator module consists of two cross-shaped Dipoles arranged to each other, which are in diagonal alignment in a square reflector box in plan view are arranged. In other words, it forms parallel to the reflector box base arranged in the dipole areas is the actual one Reflector level, which all around with vertical conductive boundary walls aligned with the reflector plane is provided.
  • This prior publication describes thus a cross dipole arrangement for circular polarizations.
  • DE-GM 71 42 601 is a typical judge radiator field for circular or electrical polarizations for Structure of omnidirectional antennas known.
  • the prior publication EP 0 730 describes 319 A1 an antenna arrangement with two in a vertical orientation Dipole antennas arranged one above the other, sitting in front of a reflector plate.
  • the reflector plate comes with two lateral outer reflector sections or reflector wings provided around a Buckling edge running vertically and parallel to the dipoles are angled forward. This is supposed to be the antenna characteristic be changed to a side radiation to prevent.
  • An edge angle is preferred for this used for the side reflector parts, the between 45 ° to 90 °, i.e. at 90 ° perpendicular to the reflector plane stands.
  • This antenna is also equipped with two additional ones placed on the reflector surface and between the angled side reflector sections and the in Vertical alignment of seated dipoles with reflector rails provided in the middle with a longitudinal slit are equipped.
  • the longitudinal slots are between the two vertical dipoles and are in side view covered over the outer reflector plate sections.
  • the object of the present invention is based on one known according to the generic state of the art dual polarized antenna, its linear polarizations at an angle of + 45 ° and -45 ° to the Aligned vertically, a significant improvement to create a broadening of the radiation characteristics in the desired broadcast level, i.e. especially in the horizontal emission plane is made possible.
  • the present invention is relatively simple Funds against all previously known solutions the constancy of the polarization orientation of the field strength vector clearly at a desired level of propagation improved and thus the radiation diagram in this propagation level significantly broadened.
  • the side slots provided by the radiator modules simultaneously of the + 45 ° polarization components as well as the -45 ° polarization components be stimulated. Although one should expect this to decrease decoupling between the + 45 ° polarization components and the -45 ° polarization components could occur however the opposite. It is according to the invention possible to determine the slots and dimensions in such a way that the radiation contribution of the slots is none or only one slight phase shift from the vertical Polarization component causes and thus a clear Improvement of the polarization alignment of the + 45 ° / -45 ° polarized antennas.
  • the optimal radiation pattern is achieved if, as according to the invention is provided, the slots in the side wall sections are chosen such that they are outside their Radiate resonance.
  • EP 0 739 051 A1 does indeed have one of several layers built antenna known by in the base plate introduced rectangular recesses, so-called Apertures. In these primary apertures protrude opposite each other vertically and transversely horizontally aligned, offset by 90 ° Excitation pins, which are used to excite the antenna.
  • the antenna arrangement according to the invention is completely different built up.
  • Solution also provided slots on the side.
  • these slots are not used for an antenna with a layer structure, but with a dipole arrangement or a patch heater.
  • antenna according to the invention with a polarization alignment of + 45 ° and -45 ° aligned with the vertical.
  • inventive Solution an improvement in the width characteristic can be achieved in the main beam direction without that there is a deterioration in the decoupling of both Polarizations coming.
  • the radiator modules Slits simultaneously from the + 45 ° polarization components and the -45 ° polarization components. One should expect this to result in a reduction the decoupling between + 45 ° and -45 ° would lead to polarizations.
  • the slots by dimensions and location can be coordinated so that the radiation contribution the slots have no or only a slight phase shift compared to the vertical polarization component and thus to a significant improvement in the polarization alignment the + 45 ° / -45 ° polarized antenna contributes (with different coordination and location circular portions arise).
  • the provided on the reflector according to the invention and sidewalls preferably protruding from the reflector plane with the slots made therein can surprisingly the amplitude and phase of those coupled through Slits emitted waves in a positive way to be influenced. Can be achieved in that in Main beam direction and extinctions in the rear direction take place, and that orthogonal to the main beam direction additive overlays can be achieved and thus a The radiation characteristic is broadened.
  • the antenna arrangement according to the invention has a broadband Has characteristic.
  • radiator modules 3 are formed in the manner of cross modules 3a.
  • Other cross module designs are also possible, e.g. in the form of square dipole modules.
  • This antenna array is designed so that the radiator modules 3 are aligned in the manner of cross modules 3a, that they have linear polarizations with an angle of + 45 ° and -45 ° in relation to the vertical (or in relation to the Horizontal) receive or radiate.
  • Such an antenna array is also briefly referred to below as X-polarized Antenna array called.
  • the radiator modules 3 are seated in the exemplary embodiment shown in front of a reflective surface, the so-called Reflector 7, which increases the directivity. she are by their radiator feet or 3b symmetries Reflector 7 attached and held.
  • the dipole plane is in + 45 ° or -45 ° aligned with the vertical, i.e. compared to the horizontal cutting plane 9.
  • the side wall sections 15 are part of the embodiment shown Reflector 7 and can be part of a reflector element or - Be sheet metal, in which the side wall sections through Up or bending are formed.
  • the side wall sections 15 are thus transverse, i.e. in the shown Embodiment perpendicular to the reflector plane 11 aligned and protrude above the reflector level 11, namely on the side on which the radiator modules 3 are arranged are the front view of the antenna array 1 between the two parallel side wall sections 15 come to rest.
  • radiator modules 3 are each in the side wall sections 5 slots 17 are introduced, which are parallel to the reflector plane 11 and thus parallel to the dipole plane 19 extend from the plane in which the dipoles 3, 3a come to rest, is fixed.
  • the position and dimensions of the slots in particular their longitudinal extension and their width can be selected differently and are preferably adjusted so that the amplitude and phase of those emitted through the coupled slots Wave or radiated horizontal polarization component the electromagnetic wave are such that in the main beam direction 23 and in the rear direction extinction takes place and orthogonal to the main beam direction additive overlays can be achieved as well the smallest possible phase shift to the vertical Main polarization component is reached. Doing so preferably selected a slot length in the range of a quarter of the wavelength to an entire wavelength lies.
  • the radiation diagram in FIG mentioned way changed that in the main beam direction orthogonal and to the main propagation or horizontal section plane 9 parallel or in this main propagation plane 9 lying side beam direction 25, i.e. in the embodiment shown in horizontal Side emission direction, the radiation characteristic is significantly broadened.
  • the one through the dipole alignment defined and in the main propagation level 9 in other words, falling field strength vector is in its Side beam direction 25 with a significantly larger half-width also in the side of the main beam direction 23 different side areas broadcast.
  • the improved radiation characteristics is not only narrow but also broadband.
  • the size and position of the slots 17 are preferably so optimized that the slit-like weakly radiating parasitic radiators are not in resonance and not in phase, but in phase radiate.
  • the improved radiation characteristics are from the diagrams 3 and 4 can be seen, with the diagram according to FIG. 4 shows that the half-widths correspond the vertical, horizontal and + 45 ° / -45 ° components and thus the constancy of polarization in Half-width in the antenna array according to the invention for example according to Figures 1 and 2 compared to one conventional arrangement is significantly improved. It is 3 and 4 also show from the diagram, that the advantageous improved radiation characteristics can be implemented over a broadband range is.
  • the side wall areas with the slots each a separate component can be, but preferably firmly connected to the reflector are.
  • a reflector plate or other edgeable or bendable material with a conductive and therefore reflective surface can the side wall sections by edges and Bending the reflector sheet can be made.
  • the side wall sections do not necessarily have to Outer edge region 31 of the reflector 7 can be arranged.
  • she can be external or, as in Figures 1 and 2 is shown, also further inside from the outer Edge 31 may be arranged away, namely under Formation of an outer edge strip 41.
  • Reflector level 11 less than the distance of the dipole or Cross module level 19 to reflector level 11.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Claims (6)

  1. Agencement d'antennes à double polarisation pour rayonner ou recevoir des ondes électromagnétiques, présentant les caractéristiques suivantes :
    l'agencement d'antennes à double polarisation comprend au moins un module émetteur de rayonnement (3) à double polarisation par utilisation de dipôles (3a) ou sous la forme d'un émetteur de rayonnement composite,
    le module émetteur de rayonnement (3) ainsi formé présente deux plans de polarisation perpendiculaires l'un l'autre qui sont orientés dans sous un angle de + 45° ou de - 45° par rapport à un plan de coupe (9) vertical et par conséquent aussi un plan horizontal,
    à l'opposé dudit au moins un module émetteur de rayonnement (3), il est en outre prévu un réflecteur (7) conducteur agencé à l'arrière de celui-ci,
    transversalement au plan de réflecteur (11) et perpendiculairement à un plan de coupe (9) horizontal passant à travers le module émetteur de rayonnement (3), il est prévu un tronçon de paroi latéral (15) respectif sur des côtés opposés du module émetteur de rayonnement, les deux tronçons de paroi latéraux (15) s'étendant parallèlement l'un à l'autre,
    caractérisé en ce que :
    dans les deux tronçons de paroi latéraux (15), il est prévu respectivement une fente (17) agissant en tant qu'émetteur de rayonnement secondaire ou parasitaire,
    ladite au moins une fente (17) dans les deux tronçons de paroi latéraux (15) étant prévue respectivement à la hauteur du module émetteur de rayonnement (3) concerné, et ceci de telle sorte qu'un plan de coupe (9) horizontal passant à travers le module émetteur de rayonnement (3) recoupe au moins les deux fentes (17), et
    la position et/ou les dimensions des fentes (17) sont choisies telles que celles-ci rayonnent en dehors de leur résonance.
  2. Agencement d'antenne selon la revendication 1, caractérisé en ce que les fentes (17) sont agencées parallèlement au plan émetteur de rayonnement (19) et/ou parallèlement au plan de réflecteur (11).
  3. Agencement d'antenne selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que les tronçons de paroi latéraux (15) dans lesquels sont ménagées les fentes (17) sont agencés transversalement au plan émetteur de rayonnement (19) et/ou au plan de réflecteur (11).
  4. Agencement d'antenne selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la distance entre les fentes (17) et le plan de réflecteur (11) est inférieure à la distance entre le plan émetteur de rayonnement (19) et le plan de réflecteur (11).
  5. Agencement d'antenne selon l'une quelconque des revendications 1 à 4 caractérisé en ce que la position et/ou la dimension des fentes (17) sont adaptées de telle sorte que les fentes (17) agissant en tant qu'antennes de rayonnement secondaires ou parasitaires rayonnent en opposition de phase.
  6. Agencement d'antenne selon l'une quelconque des revendications 1 à 5 caractérisé en ce qu'au moins deux modules émetteur de rayonnement (3) sont agencés l'un au-dessus en orientation verticale en formant un réseau d'antennes.
EP98930740A 1997-05-30 1998-05-27 Systeme d'antenne Expired - Lifetime EP0916169B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19722742A DE19722742C2 (de) 1997-05-30 1997-05-30 Dualpolarisierte Antennenanordnung
DE19722742 1997-05-30
PCT/EP1998/003129 WO1998054787A1 (fr) 1997-05-30 1998-05-27 Systeme d'antenne

Publications (2)

Publication Number Publication Date
EP0916169A1 EP0916169A1 (fr) 1999-05-19
EP0916169B1 true EP0916169B1 (fr) 2002-08-07

Family

ID=7830966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98930740A Expired - Lifetime EP0916169B1 (fr) 1997-05-30 1998-05-27 Systeme d'antenne

Country Status (13)

Country Link
US (1) US6195063B1 (fr)
EP (1) EP0916169B1 (fr)
KR (1) KR100657705B1 (fr)
CN (1) CN1166033C (fr)
AU (1) AU729918B2 (fr)
BR (1) BR9804937B1 (fr)
CA (1) CA2261625C (fr)
DE (2) DE19722742C2 (fr)
DK (1) DK0916169T3 (fr)
ES (1) ES2181241T3 (fr)
HK (1) HK1021774A1 (fr)
NZ (1) NZ333517A (fr)
WO (1) WO1998054787A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US7023398B2 (en) 2003-04-11 2006-04-04 Kathrein-Werke Kg Reflector for a mobile radio antenna
US7075498B2 (en) 2004-05-27 2006-07-11 Kathrein-Werke Kg Stationary mobile radio antenna
EP1689022A1 (fr) 2005-02-08 2006-08-09 Kathrein-Werke KG Antenne pour une station de base cellulaire
WO2007023207A1 (fr) 2005-08-26 2007-03-01 Exel Oyj Procede de fabrication d'un radome d'antenne a partir de materiaux composites en mouvement continu
DE102005061636A1 (de) * 2005-12-22 2007-06-28 Kathrein-Werke Kg Dual polarisierte Antenne
US7427966B2 (en) 2005-12-28 2008-09-23 Kathrein-Werke Kg Dual polarized antenna
US7679576B2 (en) 2006-08-10 2010-03-16 Kathrein-Werke Kg Antenna arrangement, in particular for a mobile radio base station

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DE102007006559B3 (de) * 2007-02-09 2008-09-11 Kathrein-Werke Kg Mobilfunkantenne, insbesondere für eine Basisstation
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EP2073309B1 (fr) * 2007-12-21 2015-02-25 Alcatel Lucent Élément de rayonnement à double polarisation pour antennes de station de base cellulaire
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US20130162499A1 (en) * 2011-11-15 2013-06-27 Juniper Networks, Inc. Apparatus for implementing cross polarized integrated antennas for mimo access points
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Also Published As

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DK0916169T3 (da) 2002-12-02
CA2261625A1 (fr) 1998-12-03
NZ333517A (en) 1999-08-30
BR9804937A (pt) 2000-01-18
CN1166033C (zh) 2004-09-08
ES2181241T3 (es) 2003-02-16
DE59805084D1 (de) 2002-09-12
EP0916169A1 (fr) 1999-05-19
KR100657705B1 (ko) 2006-12-19
DE19722742A1 (de) 1998-12-10
CA2261625C (fr) 2003-04-08
KR20000029472A (ko) 2000-05-25
AU8106898A (en) 1998-12-30
CN1228202A (zh) 1999-09-08
US6195063B1 (en) 2001-02-27
DE19722742C2 (de) 2002-07-18
AU729918B2 (en) 2001-02-15
WO1998054787A1 (fr) 1998-12-03
BR9804937B1 (pt) 2013-09-17
HK1021774A1 (en) 2000-06-30

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