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EP0709913A2 - Dispositif d'alimentation pour un dipÔle - Google Patents

Dispositif d'alimentation pour un dipÔle Download PDF

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Publication number
EP0709913A2
EP0709913A2 EP95114297A EP95114297A EP0709913A2 EP 0709913 A2 EP0709913 A2 EP 0709913A2 EP 95114297 A EP95114297 A EP 95114297A EP 95114297 A EP95114297 A EP 95114297A EP 0709913 A2 EP0709913 A2 EP 0709913A2
Authority
EP
European Patent Office
Prior art keywords
conductor
reflector
strip
distance
dipole
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
EP95114297A
Other languages
German (de)
English (en)
Other versions
EP0709913B1 (fr
EP0709913A3 (fr
Inventor
Axel Dipl.-Ing. Stark
Berthold Dipl.-Ing. Klos
Ludwig Dipl.-Ing. Nielsen
Andreas Dipl.-Ing. Knüttel
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.)
Rohde and Schwarz GmbH and Co KG
Original Assignee
Rohde and Schwarz GmbH and Co 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 Rohde and Schwarz GmbH and Co KG filed Critical Rohde and Schwarz GmbH and Co KG
Publication of EP0709913A2 publication Critical patent/EP0709913A2/fr
Publication of EP0709913A3 publication Critical patent/EP0709913A3/fr
Application granted granted Critical
Publication of EP0709913B1 publication Critical patent/EP0709913B1/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
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • 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
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/062—Two dimensional planar arrays using dipole aerials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0075—Stripline fed arrays
    • H01Q21/0081—Stripline fed arrays using suspended striplines

Definitions

  • the invention relates to an arrangement for the symmetrical feeding of one or more dipoles arranged at a distance in front of a reflector surface via an asymmetrical strip line.
  • a galvanically electrically conductive contact between the strip line of the asymmetrical strip line and the dipole is superfluous, the strip line ends without a connection.
  • the two dipole halves are galvanically connected via connecting strips only to the two additional conductor parts placed on the conductor strips, insulated from one another at an axial distance from one another, and these parts can therefore be produced very simply and cheaply by stamping and bending from a piece of sheet metal, additional galvanic connection points by soldering, screwing or The like becomes superfluous.
  • a feed arrangement according to the invention is therefore not only very simple and inexpensive to produce, but also extremely reliable, and failure due to poor contacts is impossible.
  • the feed arrangement according to the invention is also suitable for the feed of several dipoles combined into groups, such as those e.g. be used to increase the antenna gain.
  • Fig. 1 shows a perspective view of a feed arrangement according to the invention
  • Fig. 2 shows the associated cross section along the section line I-I.
  • Fig. 1 shows a dipole consisting of two dipole halves 1 and 2, which is designed in the embodiment shown as a half-wave dipole. This dipole could also be designed as a full-wave dipole, the two dipole halves 1, 2 can also have different lengths have and have any cross-sectional shape. These two dipole halves 1, 2 are arranged at a distance 3 in front of one for the sake of clarity in Fig. 1 only partially shown reflector surface 4. The two dipole halves 1, 2 are attached to the upper ends of two spaced apart and parallel connection strips 5, 6, which extend through an opening 7 of the reflector 4 to the rear and the symmetrical feed line for the dipole 1, 2 form.
  • the connecting strips 5, 6 are preferably stamped and bent in one piece with the dipole halves 1, 2 from a piece of sheet metal.
  • the opposing conductor surfaces of these two connection strips 5, 6 and their spacing is selected so that the wave impedance thus formed transforms the dipole impedance existing between the two dipole halves 1, 2 to an output impedance desired at their connection ends ending behind the reflector.
  • additional sheet metal bends can be provided on the connecting strips 5, 6 over part or the entire length in order to achieve an expanded range of the impedance transformation.
  • the connection to the transmitter or receiver is made via a strip line, which in the further course can change into another type of line, for example a coaxial cable.
  • the stripline is formed by a stripline 8 which is guided parallel to the reflector surface 4 and a rear wall 30 which is arranged parallel to the reflector, for example a supporting pole.
  • the two conductor parts 9, 10 are arranged directly below the opening 7 of the reflector 4 at a distance 11 from one another.
  • connection strips 5, 6 of the dipole feed line projecting downward through the opening 7 are connected; they are preferably in turn produced directly from a piece of sheet metal with the conductor parts.
  • the ends of the two conductor parts 9, 10 facing away from the ends 12, 13 are attached galvanically to the reflector 4 or the rear wall 30 by means of flanges 14, 14 'and 15, 15 bent upwards and downwards.
  • the strip conductor 8 arranged between the conductor parts 9, 10 ends without a connection at a distance 16 from the short-circuit end 14 of the conductor part 9 facing away from the asymmetrical strip line.
  • each of the conductor parts 9, 10 are the same and, for example in the vicinity of ⁇ / 4, are chosen such that their impedance is high-impedance compared to the dipole impedance transformed by the symmetrical line 5, 6.
  • a kind of pot circle is formed between the two conductor parts 9, 10 and the reflector surface 4 or rear wall 30 arranged at a distance from it.
  • the U-shaped bent conductor parts 9, 10 with their connecting flanges 14, 14 ', 15, 15', the branching strips 5, 6 and the dipole halves 1, 2 are preferably cut in one piece from a sheet metal and bent accordingly, they will be including Dipole halves 1, 2 are held mechanically by the flange fastenings 14, 14 ', 15, 15' on the reflector 4 or the rear wall 30. If necessary, the conductor strip 8 be mechanically supported by one or more dielectric supports, otherwise all parts are electrically insulated from one another by air at their predetermined distance.
  • the width 17 of the U-legs of the two conductor parts 9, 10, their mutual spacing 18 and the width and thickness of the strip conductor 8 and also the axial length of the conductor parts 9, 10 are chosen so that the resulting characteristic impedance and the resultant frequency-dependent impedance on the two conductor parts high-frequency currents - indicated by the current arrows 19 and 20 - are forced to be at the opposite connection points 12, 13 of the connecting strips 5, 6 of the dipole feed line are each the same size, so that on the connecting strips 5, 6 correspondingly large opposite phases Feed currents 23, 24 and thus corresponding rectified currents 25, 26 of the same size flow on the dipole halves 1, 2.
  • both the conductor parts and this conductor strip can have correspondingly different dimensions in the longitudinal extent of the conductor strip, as is shown schematically for the strip conductor 8 by the changes in width 27, 28 in FIG. 1 is indicated.
  • the conductor parts are arranged parallel to the reflector 4 so that their U - Legs each lie in parallel planes to the reflector 4 and their opening is to the side.
  • the wave resistance is also like this chosen that when using this feed arrangement with a transmission dipole, the transmitter energy supplied via the asymmetrical strip line 8, 4 is reflected as little as possible at the joint formed by the inlet of the conductor part 10.
  • the lower U-legs of the conductor parts 9, 10 can be omitted; the conductor parts are then only narrow metal strips which are arranged between the reflector 4 and the strip conductor 8 are and are connected at their ends to the connecting strips 5, 6 or via the bends 14, 15 with the reflector 4.
  • the feed arrangement according to the invention is equally well suited for the simultaneous feed of several dipoles connected in parallel, which are either arranged in parallel next to one another in front of the same reflector surface 4 and emit in the same direction, in this case, the associated dipole connection strips do not branch off vertically upwards from the connection ends 12, 13 of the two conductor parts, like the strips 5, 6, but, for example, laterally upwards on both sides, as indicated by the strips 31, 32 in dashed lines is.
  • the rear wall 30 can also be designed as a reflector, and here too a single dipole emitting to the rear or possibly a plurality of dipoles can be arranged, which in this case are connected via connecting strips 5 '6' or 31 ', 32' branch off to the rear through a corresponding opening in the rear wall 30.
  • omnidirectional antennas can also be constructed in which lateral reflector surfaces are also provided.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Eye Examination Apparatus (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
EP95114297A 1994-10-31 1995-09-12 Dispositif d'alimentation pour un dipôle Expired - Lifetime EP0709913B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4438809 1994-10-31
DE4438809A DE4438809B4 (de) 1994-10-31 1994-10-31 Dipolspeiseanordnung

Publications (3)

Publication Number Publication Date
EP0709913A2 true EP0709913A2 (fr) 1996-05-01
EP0709913A3 EP0709913A3 (fr) 1998-10-14
EP0709913B1 EP0709913B1 (fr) 2003-05-21

Family

ID=6532096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114297A Expired - Lifetime EP0709913B1 (fr) 1994-10-31 1995-09-12 Dispositif d'alimentation pour un dipôle

Country Status (2)

Country Link
EP (1) EP0709913B1 (fr)
DE (2) DE4438809B4 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893374A1 (fr) 1997-06-13 1999-01-27 Aries Packaging S.A. Mecanisme d'espacement et transfert de produits en continu à trois chaines
WO2004091050A1 (fr) * 2003-04-10 2004-10-21 Kathrein-Werke Kg Antenne comprenant au moins un dipole ou un dispositif emetteur de type dipole
EP1772929A1 (fr) * 2005-10-06 2007-04-11 Kathrein-Werke KG Rayonnantes dipoles a double polarisation
EP2272131A1 (fr) * 2008-04-25 2011-01-12 SPX Corporation Panneau d' antenne réseau à commande de phase pour un système de diffusion superéconomique
WO2011149941A1 (fr) * 2010-05-24 2011-12-01 Sibeam, Inc. Symétriseur de ligne à ruban pour applications de radiofréquences
CN102983389A (zh) * 2011-09-07 2013-03-20 深圳市华一通信技术有限公司 一种天线单元
EP3635814B1 (fr) * 2017-06-09 2024-03-27 Telefonaktiebolaget Lm Ericsson (Publ) Ensemble dipôle croisé à double polarisation et antenne comprenant deux dipôles croisés à double polarisation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115706315A (zh) * 2021-08-10 2023-02-17 华为技术有限公司 天线装置及通信设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE907544C (de) * 1940-07-05 1954-03-25 Lorenz C Ag Anordnung zum Zusammenschluss einer koaxialen Hochfrequenzenergieleitung mit einer symmetrischen Hochfrequenzenergieleitung
US3827001A (en) * 1973-06-25 1974-07-30 Us Navy Wide band series-connected equal amplitude power divider
GB2089135B (en) * 1980-11-28 1984-08-01 Marconi Co Ltd Improvements in or relating to baluns
PL141094B1 (en) * 1983-12-09 1987-06-30 Polska Akad Nauk Centrum Microwave balun transformer,especially for mixers and modulators
US5025232A (en) * 1989-10-31 1991-06-18 Texas Instruments Incorporated Monolithic multilayer planar transmission line
FR2655202B1 (fr) * 1989-11-24 1992-02-07 Thomson Csf Antenne a polarisation circulaire, notamment pour reseau d'antennes.
DE4302905C1 (de) * 1993-02-02 1994-03-17 Kathrein Werke Kg Richtantenne, insbesondere Dipolantenne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893374A1 (fr) 1997-06-13 1999-01-27 Aries Packaging S.A. Mecanisme d'espacement et transfert de produits en continu à trois chaines
WO2004091050A1 (fr) * 2003-04-10 2004-10-21 Kathrein-Werke Kg Antenne comprenant au moins un dipole ou un dispositif emetteur de type dipole
US6933906B2 (en) 2003-04-10 2005-08-23 Kathrein-Werke Kg Antenna having at least one dipole or an antenna element arrangement which is similar to a dipole
EP1772929A1 (fr) * 2005-10-06 2007-04-11 Kathrein-Werke KG Rayonnantes dipoles a double polarisation
US7579999B2 (en) 2005-10-06 2009-08-25 Kathrein-Werke Kg Dual polarized dipole radiator
EP2272131A1 (fr) * 2008-04-25 2011-01-12 SPX Corporation Panneau d' antenne réseau à commande de phase pour un système de diffusion superéconomique
EP2272131A4 (fr) * 2008-04-25 2012-03-07 Spx Corp Panneau d' antenne réseau à commande de phase pour un système de diffusion superéconomique
WO2011149941A1 (fr) * 2010-05-24 2011-12-01 Sibeam, Inc. Symétriseur de ligne à ruban pour applications de radiofréquences
US8963656B2 (en) 2010-05-24 2015-02-24 Silicon Image, Inc. Apparatus, system, and method for a compact symmetrical transition structure for radio frequency applications
CN102983389A (zh) * 2011-09-07 2013-03-20 深圳市华一通信技术有限公司 一种天线单元
CN102983389B (zh) * 2011-09-07 2015-09-30 深圳市华一通信技术有限公司 一种天线单元
EP3635814B1 (fr) * 2017-06-09 2024-03-27 Telefonaktiebolaget Lm Ericsson (Publ) Ensemble dipôle croisé à double polarisation et antenne comprenant deux dipôles croisés à double polarisation

Also Published As

Publication number Publication date
EP0709913B1 (fr) 2003-05-21
DE59510691D1 (de) 2003-06-26
DE4438809A1 (de) 1996-05-02
DE4438809B4 (de) 2004-11-04
EP0709913A3 (fr) 1998-10-14

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