WO2003075404A1 - Dispositif d'antennes a dipole plan - Google Patents

Dispositif d'antennes a dipole plan Download PDF

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Publication number
WO2003075404A1
WO2003075404A1 PCT/EP2003/001739 EP0301739W WO03075404A1 WO 2003075404 A1 WO2003075404 A1 WO 2003075404A1 EP 0301739 W EP0301739 W EP 0301739W WO 03075404 A1 WO03075404 A1 WO 03075404A1
Authority
WO
WIPO (PCT)
Prior art keywords
dipole
coupling element
antenna arrangement
arrangement according
dipole halves
Prior art date
Application number
PCT/EP2003/001739
Other languages
German (de)
English (en)
Inventor
Gerald Schillmeier
Werner Blaier
Udo Flinner
Ralf Exler
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
Priority to DE50303032T priority Critical patent/DE50303032D1/de
Priority to EP03708115A priority patent/EP1481445B1/fr
Priority to AU2003212256A priority patent/AU2003212256A1/en
Publication of WO2003075404A1 publication Critical patent/WO2003075404A1/fr

Links

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
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole
    • 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
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface

Definitions

  • the invention relates to an antenna arrangement with an area dipole according to the preamble of claim 1.
  • Dipole antennas are well known. They can be used to receive a wide variety of frequencies. The length of the dipole halves depends on the frequency range to be transmitted.
  • area dipoles are known in principle, the dipole halves of which consist, for example, of two rectangular conductive dipole halves, which can also be formed, for example, on a substrate in the form of a printed circuit board.
  • Such area dipoles can also be used, for example, in the DVB-T area.
  • Such surface dipoles on the one hand, have a quality that is not sufficient for many applications and / or, above all, an insufficient broadband capability, above all when they should be realized in a comparatively compact design in relation to the operating wavelength.
  • This coupling element consists of a conductive, preferably flat arrangement, which is arranged such that it extends with a partial length next to the one dipole half and with a further partial length along the other dipole half. It is preferably provided that the boundary line or edge of the flat coupling element, which is closer to the corresponding lateral boundary lines or edges of the dipole halves of the surface dipole, are directly adjacent to one another.
  • the adjacent boundary lines or edges of the coupling element and the dipole halves of the surface dipole run parallel to one another. In plan view perpendicular to the plane of the surface It is preferably provided that the adjacent boundary edges of the coupling element and the dipole halves lie directly one above the other or are only arranged with a slight or minimal lateral offset to one another.
  • a particularly favorable implementation can be realized if the coupling element is arranged on one side of a substrate, preferably in the form of a printed circuit board, and the dipole halves of the surface dipole are arranged on the other side of the substrate. Regardless, however, the coupling element can be on the same side of the substrate or the printed circuit board, i.e. if necessary also be provided at the same level. It can also be provided on the substrate spacer or other device in order to arrange the coupling element, if necessary, on another height plane parallel to the plane of extent of the dipole halves of the surface dipole. A small height offset, for example on the order of 0.2 to 4 mm, enables favorable results. Distances of up to 10 mm and more are also possible.
  • the dipole halves are provided at their ends pointing away from one another with so-called roof capacities which are oriented transversely to the direction of extension of the dipole halves, i.e. electrical sections belonging to the dipole halves and which run transversely to the longitudinal extent of the dipole halves.
  • the dipole halves point outwards from their middle section to be facing each other to their opposite Sections become increasingly wider at least in a partial longitudinal direction, that is to say become wider in their plane of extension.
  • the lateral boundary edges of the dipole halves can preferably run diverging from the center to their outer end, as a result of which a further improvement in the broadband range can be achieved with the simplest implementation of the area dipole. Because the boundary edges of the coupling element preferably run parallel to the boundary edges of the adjacent dipole halves of the surface dipole (or are arranged only diverging at a small angle to one another), these boundary edges of the coupling element can also run obliquely.
  • a further coupling element is provided opposite the coupling element on the other adjacent side of the dipole halves.
  • This further coupling element can furthermore also comprise a matching network which can be implemented with the printed circuit board and the coupling element on a microstrip basis.
  • This further coupling element is preferably formed in the longitudinal direction of the dipole halves with a smaller longitudinal extension than the opposite coupling element mentioned first.
  • Both coupling elements can also be electrically (eg capacitively) or galvanically connected.
  • the adaptation network or parts thereof can also be provided on both coupling elements.
  • the radiation characteristic of the antenna can also be influenced by means of the two or the at least one coupling element.
  • FIG. 1 shows a schematic plan view of a first exemplary embodiment of an antenna arrangement with an area dipole and a lateral coupling element
  • Figure 2 is a cross-sectional view along the
  • FIG. 3 shows a further cross-sectional illustration through the exemplary embodiment according to FIG. 1, but along a cross-sectional plane transverse to the longitudinal direction L in FIG. 1;
  • FIG. 4 an embodiment example modified from FIG. 1 in plan view with dipole halves widening outward in a wedge shape;
  • FIG. 5 an exemplary embodiment, modified from FIG. 4, in a top view with respect to a surface dipole with a correspondingly adapted coupling element;
  • FIG. 6 a further modified exemplary embodiment with an adaptation network
  • FIG. 7 an exemplary embodiment modified again compared to FIG. 6.
  • FIG. 1 shows a schematic plan view of a first exemplary embodiment of an antenna arrangement according to the invention in the form of a flat dipole 1 with two dipole halves 1 ′ which extend in the longitudinal direction 3.
  • the surface dipole 1 comprises conductive surface elements 5 for the dipole halves 1 ', which can preferably be formed on a substrate 7, in particular in the form of a printed circuit board 7'.
  • the actual dipole halves 1 ' are rectangular and have a length L and a width B in the plane of extension E of the dipole halves 1'.
  • a feed point 11 is provided for the feed.
  • so-called roof capacitances 1 ′′ are formed on the opposite, ie outer ends 13 of the dipole halves l 1 to improve the broadband capability and / or to improve the quality of the antenna, which in the exemplary embodiment shown also have a rectangular structure and run at right angles to the longitudinal extent 3 of the area dipole 1.
  • the protrusions 16 of the roof capacities 1 " that is, the extent to which the roof capacities 1" protrude beyond the side delimitation edges 17 of the dipole halves 1 ', can be selected differently for optimization. In the exemplary embodiment shown, these protrusions 16 are smaller than the longitudinal dimension of the dipole halves 1 'without the roof capacities 1 ".
  • the width of the roof capacities 1 " is smaller than the width of the dipole halves 1 'and is preferably approximately 30% to 70%, preferably 40% to 60% of the width of the dipole halves 1'.
  • the widths can also be of the same order of magnitude lie.
  • a coupling element 21 is now provided, which in the exemplary embodiment shown consists of a conductive surface element 21 '.
  • this conductive surface element 21 ' is formed on the opposite side 25 of the printed circuit board 7'. Therefore, in the top view according to FIG. 1, the coupling element lying on the underside of the printed circuit board 7, 7 'is shown in broken lines.
  • the coupling element 21 is rectangular in plan view and is arranged such that its longitudinal extension extends parallel to the longitudinal direction 3 of the surface dipole 1.
  • boundary edge 21 "runs parallel to the side boundary edges 17 of the dipole halves 1 'parallel and preferably in plan view transversely to the plane of extent E congruent with the side boundary edges 17 or only with a slight lateral offset of preferably less than 20 mm, in particular less than 10.5 or even
  • the distance between the at least one coupling element and the respectively adjacent dipole half can be chosen to be larger the longer the roof capacities are.
  • a slightly divergent angle of preferably less than 5 °, in particular less than 1 ° can also be set between the boundary edges.
  • the distance between the adjacent edges remains the same or preferably changes only slightly, ie the change in distance between the adjacent edges the dipole halves and the coupling element should preferably not be more than 10%, in particular not more than 5% or at least not more than 1% of the operating wavelength over the length of the dipole halves, ie at least over half the length of the dipole halves.
  • the improved quality and broadband are also produced in that the plane E ⁇ of the coupling element 21 is offset from the plane of extension E D of the surface dipole 1, namely in the exemplary embodiment shown at a distance corresponding to the thickness D of the substrate 7.
  • the thickness of the substrate can be adjusted by suitable means Material selection, that is, can be additionally changed by the respective dielectric constant.
  • additional structures can also be provided in order to make the distance between the extension plane E ⁇ of the coupling element 21 and the dipole halves 1 ′ even larger, that is to say deviating from the thickness of the substrate 7.
  • the coupling element 21 can be on the same side like the surface dipole 1, and is only by a minimal dimension nated gap of preferably less than 5mm, in particular less than 1mm to the adjacent side boundary edge 17 of the dipole halves 1 'separated.
  • spacer elements can also be provided on the same side of the substrate, so that the coupling element 21 can be arranged in a plane offset from the plane of the dipole halves 1 '.
  • the coupling element and the dipole halves can also be arranged in an overlapping manner in plan view.
  • the overlap can extend over a certain length and / or the entire width of the dipole.
  • the exemplary embodiments 1 and 2 also show that the coupling element 21 is preferably arranged symmetrically to a transverse plane of symmetry 27, that is to say extends with the same partial length parallel to both dipole halves 1 '.
  • FIG. 4 an improvement in the antenna properties, in particular with regard to their broadband capability, is achieved by using no rectangular dipole halves 1 'but flat dipole halves 1', the side boundary edges 17 of which lie from their inner end 9 become increasingly wider towards their outer end 13, at least in a partial longitudinal extension of the dipole halves 1 '.
  • these dipole halves 1 ' are designed to become continuously wider from the inside to their outer end, so that their side boundary edges 17 from diverging from the inside to the outside.
  • the angle at which the side boundary edges 17 diverge with respect to each dipole half 1 ' can be, for example, around 30 °.
  • Values from 10 ° to 50 °, in particular 20 ° to 40 °, are preferably used. This results in a triangular or trapezoidal structure for the dipole halves 1 'from above.
  • the roof capacities 1 ′′ are again preferably present at the outer end and may then only protrude laterally to a lesser extent from the outer broad end of the dipole halves 1 ′.
  • a further improvement, in particular the quality of the adaptation, is realized in the exemplary embodiment according to FIG. 5 in that the coupling element 21, already explained with reference to FIGS. 1 ff, is provided on at least one side of the two dipole halves 1 ', which is on the same side in the same or is provided or formed for this purpose in a staggered plane or on the opposite side of the substrate on the boundary plane of the substrate or in a plane staggered thereto. Since the boundary edge 21 ′′ of the coupling element 21 adjacent to the side boundary edge 17 of the respective dipole half 1 ′ should preferably run parallel or with a constant distance or only diverging at a small angle or with a variable distance from one another, the plan view according to FIG. 4 then preferably results In this exemplary embodiment, the coupling element 21 is at least approximately roof-shaped or gable-shaped in a side view along the arrow representation 29.
  • a further coupling element 121 is provided on the opposite side to the coupling element 21.
  • a coupling element 21 or a further coupling element 121 is thus provided on both sides in plan view transversely to the plane of extent E of the substrate and thus to the plane of extent of the dipoles.
  • This further coupling element 121 preferably further comprises an adaptation network 31, which can also be implemented on a microstrip basis with the substrate 7 of the printed circuit board 7 'and the coupling element.
  • the connecting lines 33 to the matching network 31 and from there the feed lines 35 to the feed point 11 are also drawn in at the inner ends 9 of the two dipole halves 1 '.
  • This adaptation network 31 can also include devices for balancing.
  • the further coupling element 121 has only a smaller longitudinal extent in the longitudinal direction 3 than the first coupling element 21 in order to improve the adaptation.
  • the additional coupling elements 21, 121 can be provided on the same side of the substrate 7 as the surface dipoles 1 '.
  • both coupling elements 21, 121 can also be provided on the opposite side 25, that is to say on the opposite side of the substrate in relation to the surface dipoles 1 '.
  • a coupling element 21 or 121 can also be provided on the side of the substrate on which the surface dipoles 1 'are also provided, whereas the other coupling element 121 or 21 is arranged on the opposite side 25.
  • At least one slightly dimensioned gap 41 is provided between the boundary edge 21" of the coupling element 21 or 121 and the boundary edge 17 of the corresponding surface dipole 1 '.
  • the two coupling elements can also be electrically (e.g. capacitively) or galvanically connected, e.g. via a connection which is provided in the spacing space between the two inner ends of the dipole halves and / or via one or more bridge connections across the dipole halves.
  • the matching network or parts thereof can also be provided on the second coupling element or on both coupling elements.
  • Figure 7 shows in principle the same embodiment as Figure 6, but with the difference that to adapt to lower frequencies without extending the area used, the dipole halves 1 'are arranged asymmetrically with or without their coupling elements to their roof capacities 14, so that the Overhangs 16 of the roof capacity at the respective outer ends of the two dipole halves 1 'project at different distances transversely to the longitudinal direction of the dipole halves 1'.
  • the antenna can also be designed without a substrate.
  • the antenna arrangement is then, for example, using dipole halves and using at least one coupling element, which can be milled or stamped, for example, from sheet metal, preferably via spacers to form the antenna arrangement explained. adds.

Landscapes

  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

L'invention concerne un perfectionnement apporté à un dispositif d'antennes, caractérisé en ce qu'il est prévu au moins un élément d'accouplement (21, 121) qui est réalisé et/ou disposé de telle façon que ledit élément (21, 121) soit agencé parallèlement, par son bord de limitation (21''), au voisinage des bords de limitation latéraux respectifs (17) des deux demi dipôles (1') ou, du moins, approximativement parallèlement, ou sous un angle divergent faible ( alpha ), inférieur à 5 DEG , et en ce que la distance entre le bord de limitation (21'') de l'élément d'accouplement (21) et des bords de limitation latéraux respectifs (17) est inférieure à 5 mm, au moins sur une longueur partielle totale de plus de 50 %.
PCT/EP2003/001739 2002-03-07 2003-02-20 Dispositif d'antennes a dipole plan WO2003075404A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE50303032T DE50303032D1 (de) 2002-03-07 2003-02-20 Antennenanordnung mit einem flächendipol
EP03708115A EP1481445B1 (fr) 2002-03-07 2003-02-20 Dispositif d'antennes a dipole plan
AU2003212256A AU2003212256A1 (en) 2002-03-07 2003-02-20 Antenna array with a planar dipole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10209977.4 2002-03-07
DE10209977A DE10209977A1 (de) 2002-03-07 2002-03-07 Antennenanordnung mit einem Flächendipol

Publications (1)

Publication Number Publication Date
WO2003075404A1 true WO2003075404A1 (fr) 2003-09-12

Family

ID=27771066

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/001739 WO2003075404A1 (fr) 2002-03-07 2003-02-20 Dispositif d'antennes a dipole plan

Country Status (7)

Country Link
EP (1) EP1481445B1 (fr)
AT (1) ATE323955T1 (fr)
AU (1) AU2003212256A1 (fr)
DE (2) DE10209977A1 (fr)
ES (1) ES2260611T3 (fr)
TW (1) TWI288987B (fr)
WO (1) WO2003075404A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1564837A2 (fr) * 2004-02-10 2005-08-17 Taiyo Yuden Co., Ltd. Antenne et dispositif de communication sans fil avec antenne
KR100593660B1 (ko) * 2003-12-02 2006-06-28 한국전기연구원 초광대역 다이폴 안테나
EP1744400A3 (fr) * 2005-06-13 2007-03-14 Samsung Electronics Co, Ltd Système d'antenne à large bande
GB2430081B (en) * 2004-03-05 2008-10-08 Ibm Integrated multiband antennas for computing devices
WO2017166307A1 (fr) * 2016-04-01 2017-10-05 深圳市大疆创新科技有限公司 Antenne, ensemble de communication et aéronef sans pilote

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102136623A (zh) * 2010-11-25 2011-07-27 华为终端有限公司 内置天线
DE102013012776A1 (de) * 2013-08-01 2015-02-05 Sebastian Schramm Empfangsantenne
CN104241841A (zh) * 2014-09-30 2014-12-24 东南大学 双频陷波反射器的宽带平面伞形共面振子天线

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097868A (en) * 1976-12-06 1978-06-27 The United States Of America As Represented By The Secretary Of The Army Antenna for combined surveillance and foliage penetration radar
GB2029112A (en) * 1978-06-08 1980-03-12 Murphy A Television aerial
WO1988004836A1 (fr) * 1986-12-18 1988-06-30 John Chun Sing Yip Antenne interieure
WO1988009065A1 (fr) * 1987-05-08 1988-11-17 Darrell Coleman Antenne a large gamme de frequences
US5847682A (en) * 1996-09-16 1998-12-08 Ke; Shyh-Yeong Top loaded triangular printed antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097868A (en) * 1976-12-06 1978-06-27 The United States Of America As Represented By The Secretary Of The Army Antenna for combined surveillance and foliage penetration radar
GB2029112A (en) * 1978-06-08 1980-03-12 Murphy A Television aerial
WO1988004836A1 (fr) * 1986-12-18 1988-06-30 John Chun Sing Yip Antenne interieure
WO1988009065A1 (fr) * 1987-05-08 1988-11-17 Darrell Coleman Antenne a large gamme de frequences
US5847682A (en) * 1996-09-16 1998-12-08 Ke; Shyh-Yeong Top loaded triangular printed antenna

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DEY S ET AL: "Analysis of cavity backed printed dipoles", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 30, no. 3, 3 February 1994 (1994-02-03), pages 173 - 174, XP006000134, ISSN: 0013-5194 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100593660B1 (ko) * 2003-12-02 2006-06-28 한국전기연구원 초광대역 다이폴 안테나
EP1564837A2 (fr) * 2004-02-10 2005-08-17 Taiyo Yuden Co., Ltd. Antenne et dispositif de communication sans fil avec antenne
EP1564837A3 (fr) * 2004-02-10 2007-10-24 Taiyo Yuden Co., Ltd. Antenne et dispositif de communication sans fil avec antenne
GB2430081B (en) * 2004-03-05 2008-10-08 Ibm Integrated multiband antennas for computing devices
EP1744400A3 (fr) * 2005-06-13 2007-03-14 Samsung Electronics Co, Ltd Système d'antenne à large bande
US7425921B2 (en) 2005-06-13 2008-09-16 Samsung Electronics Co., Ltd. Broadband antenna system
US7764242B2 (en) 2005-06-13 2010-07-27 Samsung Electronics Co., Ltd. Broadband antenna system
WO2017166307A1 (fr) * 2016-04-01 2017-10-05 深圳市大疆创新科技有限公司 Antenne, ensemble de communication et aéronef sans pilote
CN107278341A (zh) * 2016-04-01 2017-10-20 深圳市大疆创新科技有限公司 天线、通信组件及无人飞行器
US11205838B2 (en) 2016-04-01 2021-12-21 SZ DJI Technology Co., Ltd. Antenna, communication assembly, and unmanned aerial vehicle

Also Published As

Publication number Publication date
TWI288987B (en) 2007-10-21
EP1481445B1 (fr) 2006-04-19
DE50303032D1 (de) 2006-05-24
AU2003212256A1 (en) 2003-09-16
ES2260611T3 (es) 2006-11-01
ATE323955T1 (de) 2006-05-15
TW200304250A (en) 2003-09-16
EP1481445A1 (fr) 2004-12-01
DE10209977A1 (de) 2003-10-02

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