EP1082782A1 - Antenne multigamme a polarisation double - Google Patents

Antenne multigamme a polarisation double

Info

Publication number
EP1082782A1
EP1082782A1 EP99953403A EP99953403A EP1082782A1 EP 1082782 A1 EP1082782 A1 EP 1082782A1 EP 99953403 A EP99953403 A EP 99953403A EP 99953403 A EP99953403 A EP 99953403A EP 1082782 A1 EP1082782 A1 EP 1082782A1
Authority
EP
European Patent Office
Prior art keywords
dipole
antenna
dual
antenna device
reflector
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
Application number
EP99953403A
Other languages
German (de)
English (en)
Other versions
EP1082782B1 (fr
Inventor
Maximilian GÖTTL
Roland Gabriel
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 EP1082782A1 publication Critical patent/EP1082782A1/fr
Application granted granted Critical
Publication of EP1082782B1 publication Critical patent/EP1082782B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/42—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays

Definitions

  • the invention relates to a dual polarized multi-range antenna according to the preamble of claim 1.
  • Dual polarized multi-range antennas are used to emit (or receive) two linear orthogonally aligned polarizations, which can be aligned, for example, vertically and horizontally. In practice, however, those applications are particularly important in which the polarizations are aligned by + 45 ° and -45 ° to the vertical (or to the horizontal). In the case of dual-polarized multi-range antennas, these are operated in at least two frequency bands, as a rule with two widely spaced center frequencies. The upper center frequency should be at least 1.5 times the lower center frequency.
  • Tennenmodule or antenna arrays namely used for transmission or reception in one and for transmission or reception in the other frequency band range (frequency band).
  • Dual polarized antennas as such are known. They serve for the simultaneous emission or reception of two orthogonal polarizations.
  • Such radiator arrangements can consist, for example, of several elements in the form of dipoles, slots, planar radiating elements or so-called patch radiators, as described, for example, in EP 0 685 900 AI or from the prior publication "Antennas, Part 2, Bibliographical Institute, Mannheim / Vienna / Zurich , 1970, pp. 47 to 50 "are known.
  • dipoles arranged in a cross shape (cross dipoles) or double dipole arrangements which have a square structure in plan view (dipole square) are preferably used.
  • Dual polarized antennas are also known, for example, from WO 98/01923.
  • Dual polarized antennas are also known from the publication "Dual Frequency Patch Antennas", IEEE AP Magazine, page 13 ff. It describes dual-polarized multi-range antennas that use different patch structures but have a number of disadvantages. For example, inadequate decoupling is typical of both polarizations.
  • the versions described only allow a tale / vertical position alignment. For example, it is not possible with simple means to produce a multiple array arrangement with a + 45 ° / -45 ° orientation.
  • antenna forms in turn use two antennas, which are arranged one above the other, for the respective frequency range.
  • a microstrip antenna is known from DE-Al 362 079, which, however, is suitable for radiation in two frequency ranges with only one polarization.
  • This antenna arrangement not only has a low gain, but it also proves to be disadvantageous that the radiation diagrams which can be achieved with such an antenna cannot be used for array antennas.
  • This should therefore be operable at least in two frequency ranges that are preferably far apart.
  • it should preferably have a high decoupling between the two polarizations.
  • the dual-polarized multi-range antenna according to the invention has previously unknown advantages and features. These advantages concern both the decoupling, the bandwidth, the sensitivity and the flexibility of the antenna.
  • the antenna according to the invention is characterized in that it has at least one cross-dipole-shaped radiator module in the manner of a dipole square, which is located in front of a reflector and which can be operated with dual polarization in two orthogonal orientations, which, as a rule, ie preferably an orientation take from + 45 ° and -45 ° to the vertical or horizontal.
  • This radiator module in the form of a dipole square can be operated in a lower frequency range.
  • dipoles are now provided for operation in a second upper frequency band with dual polarization, the further dipoles being arranged within the dipole square.
  • the other dipoles are preferably designed as cross dipoles.
  • the dipole elements are aligned parallel or perpendicular to the dipole elements of the dipole square, ie they also have an orientation of + 45 ° and -45 ° with respect to the vertical or horizontal with an X antenna.
  • the respective mounting of the dipoles of the lower frequency range which simultaneously function as so-called symmetrization, is designed and / or arranged and / or dimensioned such that no resonance in the upper frequency range or at least no relevant one Resonance upper frequency range occurs.
  • the height of the dipoles is arranged no further than one wavelength from the reflector or the reflector plane.
  • Favorable values lie in a range from 1/8 to% of the respective operating wavelength.
  • the antenna according to the invention is above all that it is broadband on the one hand and on the other hand has a high decoupling between the two polarizations. It is characterized in particular by the fact that it is possible with the antenna according to the invention to ensure that the horizontal half-widths of the two radiator modules are identical or nearly identical, both in the lower and in the upper frequency band range, that is to say are essentially the same size.
  • the antenna according to the invention is constructed not only with a dipole square and a cross dipole arranged therein, but rather in the manner of an antenna array with a plurality of such square dipoles, each with further internal dipoles, preferably in the form of cross dipoles .
  • a further radiator module for radiating the upper frequency band between the two dipole squares for transmitting and receiving the lower frequency band.
  • This further radiator module is then preferably not designed as a dipole cross, but also as a dipole square.
  • Figure 1 is a schematic plan view of an embodiment of a dual polarized multi-range antenna according to the invention
  • Figure 2 is a schematic side view parallel to the reflector
  • Figure 3 is a schematic perspective view of the embodiment shown in Figure 1 and Figure 2;
  • Figure 4 a modified embodiment with several assembled to an array
  • FIG. 5 an exemplary embodiment modified from FIG. 4;
  • FIG. 6 a top view of the exemplary embodiment according to FIG. 5;
  • FIG. 7 a side view of the exemplary embodiment according to FIGS. 5 and 6.
  • 1 and 2 show a schematic top view and a side view parallel to a reflector of a dual-polarized multi-range antenna which comprises a first radiator module 1 for a first frequency range and a second radiator module 3 for a second frequency range.
  • the two radiator modules 1, 3 are arranged in front of a reflector 5 which is almost square in the exemplary embodiment shown.
  • the reflector is conductive.
  • a feed network can be located on the rear of the reflector, via which the first and also the second radiator module are electrically connected separately.
  • the first radiator module 1 consists of several dipoles la, namely in the exemplary embodiment shown four dipoles la, which are arranged in the manner of a dipole square.
  • the dipoles 1 a are held mechanically by a so-called symmetry 7 with respect to the reflector or a circuit board located behind them, and are electrically contacted, that is to say fed, via the feed network mentioned.
  • the reflector plate itself has a reflector edge 6, which in the exemplary embodiment shown rises vertically from the plane of the reflector plate 15 at a certain height, as a result of which the radiation diagram can be influenced in an advantageous manner. 2
  • the length of the dipole elements of the first radiator module is coordinated so that a lower frequency range corresponding electromagnetic waves can be sent or received.
  • the orthogonal alignment of the dipole elements creates a dual-polarized antenna in a known manner.
  • the dipoles 1 a are oriented at an angle of + 45 ° and -45 ° with respect to the vertical (or equally with respect to the horizontal), specifically with the formation of an antenna, also referred to as X-polarized for short.
  • the second radiator module 3 is now located within the first radiator module 1 formed in the manner of a dipole square.
  • this second radiator module 3 is not formed as a dipole square, but in the form of a cross dipole.
  • the two orthogonally positioned dipoles 3a are also mechanically supported and electrically fed again via the symmetrization 9 assigned to them with respect to the reflector or a circuit board located behind it.
  • This second radiator module 3 is operated in an upper frequency range, the upper center frequency being approximately twice the lower center frequency of the first radiator module 1 in the exemplary embodiment shown.
  • horizontal half-value widths in both frequency ranges of approximately 60 ° can be generated and, at the same time, high decoupling values with regard to the different + 45 ° polarizations can be achieved.
  • a comparable arrangement is also conceivable, not with an X-shaped orientation, but with an extension direction vertical / horizontal, in which the one dipole elements la or 3a are horizontal and the orthogonal dipole elements are aligned vertically.
  • both the first and the second radiator modules 1, 3 are arranged at a distance in front of the reflector 5, to be precise at a different distance.
  • the height of the dipoles above the reflector should not be more than the operating wavelength of the associated operating frequency, preferably not more than half the associated operating wavelength. However, the distance is preferably more than 1/16, in particular more than 1/8, of the associated operating wavelength.
  • the antenna thus formed has such outstanding characteristic properties.
  • a similar radiation pattern, which is not to be expected per se, results for the two radiator modules for both frequency ranges can possibly be explained, inter alia, by the fact that the dipole elements 1 a of the first radiator module act as reflectors with respect to the second radiator module 3.
  • FIG. 4 shows an embodiment for higher gain values of the antenna.
  • the dual-polarized multi-range antenna thus formed consists of two antenna arrangements explained with reference to FIGS. 1 to 3, in which the radiator modules are again aligned in the + 45 ° direction to one another and the mounting directions of the two antenna arrangements shown individually in FIG. 1 are arranged one above the other in the vertical direction.
  • the antenna modules can also be assembled into an antenna array in the horizontal mounting direction.
  • several antenna modules can also be cascaded laterally next to and above one another in several rows and columns.
  • Corresponding radiator arrangements for the upper frequency range that is to say with additional second radiator modules 3 ′, are filled in the spaces between the respective first radiator modules 1 for the lower frequency range.
  • two radiator modules 1 and a second radiator module 3 with dipole elements 3b are arranged in front of a reflector plate.
  • the antenna produced in this way has a high vertical gain, with the same horizontal half-value width of approximately 60 ° being achievable for both radiator modules.
  • the radiator modules 3 arranged in the first radiator modules 1 differ from the second radiator module. len 3 'can distinguish, which are arranged in the spaces 15 between the first dipole squares 1.
  • the additional radiator module 3 arranged between two radiator modules 1 in FIG. 4 consists of a cross dipole, ie a cross-shaped dipole arrangement, and in the embodiment according to FIG. 5 a dipole square, ie generally a dipole square-like dipole arrangement 3 "with dipole elements 3b.
  • This fine adjustment and tuning enables an improved adjustment of the half-width of the radiator arrangement for the upper and lower frequency range to be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

Une antenne multigamme à polarisation double perfectionnée, comportant un premier et un deuxième module excitateur (1, 3) pour envoyer ou recevoir une première bande de fréquences et une deuxième bande de fréquences décalée par rapport à celle-ci, se distingue par les caractéristiques suivantes: le deuxième module excitateur (3) complémentaire destiné à la gamme fréquencielle supérieure est disposé, vu de dessus, sur l'antenne à l'intérieur du carré du dipôle du premier module excitateur (1), le deuxième module excitateur (3) est constitué d'éléments dipolaires (3a) à orientation orthogonale les uns par rapport aux autres, les éléments dipolaires (3a) du deuxième module excitateur (3) sont orientés parallèlement ou perpendiculairement aux éléments dipolaires (1a) du premier module excitateur (1) sous forme d'un carré de dipôles, et le rapport de la fréquence centrale de la bande de fréquences supérieure et de celle de la bande de fréquences inférieure se situe entre 1,5 et 4.
EP99953403A 1998-05-27 1999-05-20 Antenne multigamme a polarisation double Expired - Lifetime EP1082782B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19823749A DE19823749C2 (de) 1998-05-27 1998-05-27 Dualpolarisierte Mehrbereichsantenne
DE19823749 1998-05-27
PCT/EP1999/003484 WO1999062139A1 (fr) 1998-05-27 1999-05-20 Antenne multigamme a polarisation double

Publications (2)

Publication Number Publication Date
EP1082782A1 true EP1082782A1 (fr) 2001-03-14
EP1082782B1 EP1082782B1 (fr) 2003-07-16

Family

ID=7869117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99953403A Expired - Lifetime EP1082782B1 (fr) 1998-05-27 1999-05-20 Antenne multigamme a polarisation double

Country Status (12)

Country Link
US (1) US6333720B1 (fr)
EP (1) EP1082782B1 (fr)
KR (1) KR100466960B1 (fr)
CN (1) CN1270409C (fr)
AU (1) AU755335B2 (fr)
BR (1) BR9911595B1 (fr)
CA (1) CA2331681C (fr)
DE (2) DE19823749C2 (fr)
ES (1) ES2203196T3 (fr)
HK (1) HK1038280A1 (fr)
NZ (1) NZ506976A (fr)
WO (1) WO1999062139A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6940465B2 (en) 2003-05-08 2005-09-06 Kathrein-Werke Kg Dual-polarized dipole antenna element
US9373884B2 (en) 2012-12-07 2016-06-21 Kathrein-Werke Kg Dual-polarised, omnidirectional antenna

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KR20010042252A (ko) 2001-05-25
DE19823749C2 (de) 2002-07-11
BR9911595B1 (pt) 2013-07-16
WO1999062139A1 (fr) 1999-12-02
CN1270409C (zh) 2006-08-16
US6333720B1 (en) 2001-12-25
DE19823749A1 (de) 1999-12-09
ES2203196T3 (es) 2004-04-01
DE59906301D1 (de) 2003-08-21
AU755335B2 (en) 2002-12-12
CA2331681A1 (fr) 1999-12-02
KR100466960B1 (ko) 2005-01-24
AU4265199A (en) 1999-12-13
HK1038280A1 (en) 2002-03-08
EP1082782B1 (fr) 2003-07-16
CN1303528A (zh) 2001-07-11
CA2331681C (fr) 2003-04-15
NZ506976A (en) 2002-08-28
BR9911595A (pt) 2001-02-13

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