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EP1955406B1 - Antenne omnidirectionnelle multibande - Google Patents

Antenne omnidirectionnelle multibande Download PDF

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Publication number
EP1955406B1
EP1955406B1 EP06807691.8A EP06807691A EP1955406B1 EP 1955406 B1 EP1955406 B1 EP 1955406B1 EP 06807691 A EP06807691 A EP 06807691A EP 1955406 B1 EP1955406 B1 EP 1955406B1
Authority
EP
European Patent Office
Prior art keywords
planar
area
connecting elements
emitter
planar emitter
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.)
Active
Application number
EP06807691.8A
Other languages
German (de)
English (en)
Other versions
EP1955406A1 (fr
Inventor
Thomas Schano
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1955406A1 publication Critical patent/EP1955406A1/fr
Application granted granted Critical
Publication of EP1955406B1 publication Critical patent/EP1955406B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the invention relates to a multiband omnidirectional device, in particular for installation in a vehicle body.
  • Modern motor vehicles are increasingly being equipped with broadcasting and communication services which require suitable antenna structures for transmitting and receiving radio signals.
  • the antenna structures should not protrude from the body of the vehicle, as they could disturb the design of the vehicle body. For this reason, it is desirable to install antenna structures in the body so that they do not protrude beyond the vehicle body. This is already true for receiving systems such as e.g. Radio or TV reception are known, some use multiple antennas to obtain a desired all-round reception.
  • amplifiers are used to minimize the losses due to the mismatch with conventional antenna cables or even compensate.
  • a monopole antenna having a flat conductor is known. This is divided into a first and a second, the first conductor area surrounded conductor area. Between these two conductor areas, a contact area is provided. On the side facing away from the flat conductor side, a ground region is provided.
  • a flat antenna is provided, in which, in accordance with the contour, a slot is made in such a way that an inner and an outer conductor area are formed. However, the slot between the two conductor regions is interrupted in such a way that an electrical connection exists.
  • a monopole antenna is known for multiple radio services.
  • the monopole element is connected to a substantially planar roofing capacity whose area is normal in the direction of the straight line.
  • a multiband omnidirectional antenna is provided with a ground plane and with an antenna element arranged parallel to the ground plane.
  • the antenna element has a first area radiator, which is formed flat and extends parallel to the ground plane and a second area radiator, which surrounds the first area radiator with a distance.
  • the antenna element comprises at least two connecting elements which connect the first and the second area radiators with one another.
  • a multi-band omnidirectional can be created, which has a low height and thus suitable for installation in a vehicle casing, without standing out from this.
  • the first and the second area radiators are coplanar with each other.
  • connection elements may be arranged substantially on opposite edges of the first area radiator in order to obtain a suitable current distribution in the surface radiators.
  • the first area radiator is preferably rectangular and the second area radiator has a rectangular border, wherein the second area radiator surrounds the edge of the first area radiator with a spacing, so that the second area radiator can be designed as a band revolving around the first area radiator.
  • a third area radiator may be provided, which surrounds the second area radiator with a further distance and in particular rectangular and coplanar with the first and the second area radiator is formed, wherein the connecting elements in each case connect the first, second and third surface radiators with each other.
  • At least one of the connecting elements may have an electronic component in order to be able to set the impedances of the multiband omnidirectional exactly.
  • the omnidirectional antenna has a ground connection structure for connecting the ground plane to the antenna element and a feed connection structure in order to supply the antenna element with a transmission signal.
  • the ground connection structure is preferably planar, in particular rectangular or trapezoidal, and contacts the first area radiator with an edge along a ground connection region on the first surface radiator.
  • the ground connection region runs essentially parallel to the edge of the first surface radiator, to which one of the connecting elements adjoins.
  • the feed connection structure can be designed to be flat, circular-segment-shaped, semicircular, elliptical-segment-shaped or semi-elliptical.
  • the feed connection structure contacts the first area radiator with its straight edge along a feed connection region on the first surface radiator, wherein the feed connection region extends substantially parallel to an edge of the first surface radiator, to which another of the connection elements adjoins.
  • At least one of the feed connection region and the ground connection region extend within a plane defined by contact points of the connection elements with the first surface radiator.
  • Fig. 1 is a plan view of a multiband omnidirectional 1 according to a preferred embodiment of the invention shown.
  • the multiband omnidirectional antenna 1 has a ground surface 2 which has a conductive, in particular metallic surface.
  • a planar antenna element 3 is arranged substantially plane-parallel, which is likewise made of a conductive material or has a conductive surface.
  • the antenna element 3 can be manufactured as a stamped part.
  • the planar antenna element 3 has a first surface radiator 4, which has a substantially quadrangular, preferably rectangular shape.
  • the first area radiator 4 is surrounded by a second area radiator 5, whose outer edges also form a rectangle.
  • the second area radiator 5 preferably surrounds the first area radiator with a predetermined second distance, so that a slot 6 is formed between the first area radiator 4 and the second area radiator 5.
  • the first area radiator 4 and the second area radiator 5 are connected to one another via connecting elements 7, wherein the connecting elements are arranged on opposite edges of the first area radiator 4 and thus form an electrical connection between the first area radiator 4 and the second area radiator 5.
  • the first and the second area radiators 4, 5 each have different impedances, and are thus optimized for different transmission frequencies.
  • the dimensions of the first and second area radiators, the second distance between the first and second area radiators, the size of the connecting elements 7 are matched to one another in order to set the impedance of the respective area radiator 4, 5.
  • the first area radiator 4 has a ground connection area 8 in order to provide the antenna element 3 with a ground potential, and a feed connection area 9 in order to make the transmission signal or the transmission signals available to the antenna element 3.
  • a ground connection element 10 (see Fig. 2 ) provided between the antenna element 3 and the ground plane 2.
  • the ground connection element 10 serves as a spacer element between the ground plane 2 and the antenna element 3 and is formed flat and as a web which is connected to the ground plane 2 and the ground connection region 8 of the antenna element 3.
  • the ground connection element 10 is quadrangular, in particular rectangular or trapezoidal.
  • the ground connection region 8 is substantially elongate, so that one edge of the ground connection element 10 bears against it.
  • a trapezoidal configuration of the ground connection element 10 is for example in Fig. 3 shown a sectional view through the multiband omnidirectional of the Fig. 1 along the section line BB shows.
  • a feed connection element 11 Arranged on the feed connection region 9 is a feed connection element 11, which protrudes in particular at right angles from the antenna element 3 in the direction of the ground surface 2, so that the feed connection element 11 is arranged between the antenna element 3 and the ground surface 2.
  • the feed connection element 11 is preferably circular or elliptical section-shaped, in particular semicircular or semi-elliptical, and lies with its straight edge against the feed connection region 9 of the antenna element 3.
  • the feed connector 11 does not contact the ground plane 2, but has at the curved edge, preferably at its the ground surface 2 end facing a contact point 12, via which the transmission signal is supplied to the antenna element 3.
  • the semicircular or semi-elliptical configuration of the feed connection element 11 enables an adapted current distribution in the antenna element 3.
  • Contacting of the multiband omnidirectional device 1 takes place, for example, by connecting a coaxial cable, not shown, in the area of the feed connection element 11, so that the inner conductor of the coaxial cable with the contact point 12 and the outer conductor is connected to the ground plane 2.
  • the first and second area radiators 4, 5 may have a square or rectangular cross-section.
  • the first area radiator 4 is formed substantially rectangular, wherein at its shorter edges, the connecting elements 7 are arranged.
  • the connecting elements 7 are preferably designed in the form of a web whose contact length with the first area radiator 4 is smaller than the total length of the smaller edge of the rectangular first area radiator 4.
  • the connecting elements 7 are further connected to the first area radiator 4, that this with respect to a symmetry line along a centerline are symmetrical.
  • the second area radiator 5 is preferably arranged symmetrically.
  • the first area radiator 4, the connecting elements 7 and the second area radiator 5 are integrated, e.g. made of a Stantzteil.
  • the first and the second area radiators 4, 5 are formed separately from each other, and wherein the connecting elements 7 in the form of electronic components, e.g. are formed in the form of a resistor, an inductor and / or a capacitor to adjust the necessary impedance of the antenna element 3.
  • the connecting elements 7 in the form of electronic components e.g. are formed in the form of a resistor, an inductor and / or a capacitor to adjust the necessary impedance of the antenna element 3.
  • the ground terminal area 8 and the feed terminal area 9 are arranged in the first area radiator 4 and extend substantially parallel to the longitudinal extent of the connecting elements 7.
  • the position of the ground terminal area 8 and the feed terminal area 9 are preferably arranged in the vicinity of the respective shorter edge of the first area radiator 4, preferably with a distance from the shorter edge of between 0 to 20% of the length of the larger edge of the first area radiator 4.
  • the ground terminal area 8 near a first shorter edge of the first area radiator 4 in the region of a first of the connecting elements 7 and the feed terminal area 9 is close to one second shorter edge of the first surface radiator 4 in the region of a second of the connecting elements.
  • connection areas 8, 9 extend essentially in their longitudinal extent parallel to the respective shorter edge of the first area radiator 4 and within a surface which is formed by the ends of a contact line between a respective one of the connection elements 7 and the first area radiator 4.
  • the electrical connection of the two area radiators 4, 5 via two web-shaped Connecting elements 7, the common line of symmetry with the line of symmetry of the ground terminal area and the feed terminal area form a common plane.
  • further surface radiators may be provided which extend coplanar and planar around the outer edge of the second area radiator with a certain further distance, wherein the connecting elements 7, the first and second area radiator 4, 5 and all other surface radiators connect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Claims (8)

  1. Antenne omnidirective multibande (1) comprenant :
    - une surface de masse (2) ;
    - un élément d'antenne (3) disposé parallèlement à la surface de masse (2), l'élément d'antenne (3) possédant une première antenne en nappe (4), qui est de configuration plane et s'étend parallèlement à la surface de masse (2), une deuxième antenne en nappe (5), qui entoure la première antenne en nappe (4) à un écart donné, et au moins deux éléments de liaison (7) qui relient ensemble les première et deuxième antennes en nappe (4, 5) ;
    - une structure de raccordement de masse (10) qui relie la surface de masse à l'élément d'antenne (3) ; et
    - une structure de raccordement d'alimentation (11) pour alimenter l'élément d'antenne (3) avec un signal d'émission,
    caractérisée en ce que
    - la structure de raccordement de masse est plate et vient en contact avec la première antenne en nappe (4) avec une arête le long d'une zone de raccordement de masse (10) sur la première antenne en nappe (4), la zone de raccordement de masse s'étendant parallèlement à l'arête de la première antenne en nappe (4) au niveau de laquelle se raccorde l'un des éléments de liaison ; et
    - la structure de raccordement d'alimentation (11) est de configuration plate, en forme de segment de cercle, en forme de demi-cercle, en forme de portion d'ellipse ou semi-elliptique et vient en contact avec la première antenne en nappe (4) avec une arête droite le long d'une zone de raccordement d'alimentation (9) sur la première antenne en nappe, la zone de raccordement d'alimentation (9) s'étendant parallèlement à l'arête de la première antenne en nappe (4) au niveau de laquelle se raccorde un autre des éléments de liaison.
  2. Antenne omnidirective (1) selon la revendication 1, les première et deuxième antennes en nappe (4, 5) étant de configuration coplanaire l'une par rapport à l'autre.
  3. Antenne omnidirective (1) selon la revendication 1 ou 2, les éléments de liaison (7) étant disposés à des bords opposés de la première antenne en nappe (4).
  4. Antenne omnidirective (1) selon l'une des revendications 1 à 3, la première antenne en nappe (4) étant de configuration rectangulaire et la deuxième antenne en nappe (5) possédant une bordure rectangulaire.
  5. Antenne omnidirective (1) selon l'une des revendications 1 à 4, une troisième antenne en nappe étant présente, laquelle entoure la deuxième antenne en nappe avec un écart supplémentaire et est de configuration rectangulaire et coplanaire par rapport à la première et la deuxième antenne en nappe, les éléments de liaison reliant ensemble la première, la deuxième et la troisième antenne en nappe.
  6. Antenne omnidirective (1) selon l'une des revendications 1 à 5, au moins l'un des éléments de liaison (7) possédant un composant électronique.
  7. Antenne omnidirective (1) selon l'une des revendications précédentes, la structure de raccordement de masse étant de configuration rectangulaire ou trapézoïdale.
  8. Antenne omnidirective (1) selon l'une des revendications précédentes, au moins l'une parmi la zone de raccordement d'alimentation (9) et la zone de raccordement de masse (10) s'étendant à l'intérieur d'un plan fixé par des points de contact des éléments de liaison (7) avec la première antenne en nappe (4).
EP06807691.8A 2005-11-21 2006-10-31 Antenne omnidirectionnelle multibande Active EP1955406B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005055345A DE102005055345A1 (de) 2005-11-21 2005-11-21 Multiband-Rundstrahler
PCT/EP2006/067981 WO2007057300A1 (fr) 2005-11-21 2006-10-31 Antenne omnidirectionnelle multibande

Publications (2)

Publication Number Publication Date
EP1955406A1 EP1955406A1 (fr) 2008-08-13
EP1955406B1 true EP1955406B1 (fr) 2018-07-25

Family

ID=37607133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06807691.8A Active EP1955406B1 (fr) 2005-11-21 2006-10-31 Antenne omnidirectionnelle multibande

Country Status (6)

Country Link
US (1) US8004465B2 (fr)
EP (1) EP1955406B1 (fr)
JP (1) JP2009516971A (fr)
CN (1) CN101313436A (fr)
DE (1) DE102005055345A1 (fr)
WO (1) WO2007057300A1 (fr)

Cited By (1)

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US11658401B2 (en) 2018-05-18 2023-05-23 Huawei Technologies Co., Ltd. Antenna apparatus and terminal

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US10128893B2 (en) 2008-07-09 2018-11-13 Secureall Corporation Method and system for planar, multi-function, multi-power sourced, long battery life radio communication appliance
US10447334B2 (en) 2008-07-09 2019-10-15 Secureall Corporation Methods and systems for comprehensive security-lockdown
US11469789B2 (en) 2008-07-09 2022-10-11 Secureall Corporation Methods and systems for comprehensive security-lockdown
WO2012092521A1 (fr) 2010-12-29 2012-07-05 Secureall Corporation Vraie antenne omnidirectionnelle
US9806398B2 (en) 2014-01-22 2017-10-31 Agc Automotive Americas R&D, Inc. Window assembly with transparent layer and an antenna element
USD787476S1 (en) 2014-01-22 2017-05-23 Agc Automotive Americas R&D, Inc. Antenna
US9406996B2 (en) 2014-01-22 2016-08-02 Agc Automotive Americas R&D, Inc. Window assembly with transparent layer and an antenna element
USD774024S1 (en) 2014-01-22 2016-12-13 Agc Automotive Americas R&D, Inc. Antenna
US10476143B1 (en) 2018-09-26 2019-11-12 Lear Corporation Antenna for base station of wireless remote-control system

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US6597316B2 (en) * 2001-09-17 2003-07-22 The Mitre Corporation Spatial null steering microstrip antenna array
TW572384U (en) * 2002-07-03 2004-01-11 Tatung Co Printed circuit board antenna capable of receiving signals of different polarized directions
DE10304909B4 (de) * 2003-02-06 2014-10-09 Heinz Lindenmeier Antenne mit Monopolcharakter für mehrere Funkdienste
CN100474694C (zh) * 2004-03-04 2009-04-01 松下电器产业株式会社 单极天线
US7733279B2 (en) * 2005-04-07 2010-06-08 Behzad Tavassoli Hozouri Multi-band or wide-band antenna including driven and parasitic top-loading elements
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Publication number Priority date Publication date Assignee Title
US11658401B2 (en) 2018-05-18 2023-05-23 Huawei Technologies Co., Ltd. Antenna apparatus and terminal

Also Published As

Publication number Publication date
WO2007057300A1 (fr) 2007-05-24
DE102005055345A1 (de) 2007-05-24
CN101313436A (zh) 2008-11-26
EP1955406A1 (fr) 2008-08-13
US8004465B2 (en) 2011-08-23
JP2009516971A (ja) 2009-04-23
US20090303131A1 (en) 2009-12-10

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