WO2015082550A1 - Procédé de réduction de la valeur de l'impédance caractéristique de conducteurs plats flexibles pour la connexion de structures d'antennes sur des vitres de véhicules - Google Patents

Procédé de réduction de la valeur de l'impédance caractéristique de conducteurs plats flexibles pour la connexion de structures d'antennes sur des vitres de véhicules Download PDF

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Publication number
WO2015082550A1
WO2015082550A1 PCT/EP2014/076421 EP2014076421W WO2015082550A1 WO 2015082550 A1 WO2015082550 A1 WO 2015082550A1 EP 2014076421 W EP2014076421 W EP 2014076421W WO 2015082550 A1 WO2015082550 A1 WO 2015082550A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
conductors
additional
antenna system
antenna
Prior art date
Application number
PCT/EP2014/076421
Other languages
German (de)
English (en)
Inventor
Michael Wiedmann
Dominik Strolz
Original Assignee
Hirschmann Car Communication 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 Hirschmann Car Communication Gmbh filed Critical Hirschmann Car Communication Gmbh
Publication of WO2015082550A1 publication Critical patent/WO2015082550A1/fr

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Classifications

    • 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
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/026—Coplanar striplines [CPS]

Definitions

  • the invention relates to an antenna system of a vehicle, comprising an antenna structure which is connected to a first strip-shaped conductor, and a further strip-shaped conductor, wherein the two conductors are arranged parallel to each other on a support, according to the features of the preamble of claim 1.
  • the invention relates to an antenna system of a vehicle, wherein on a vehicle part, for.
  • a vehicle window an antenna structure in the form of electrically conductive conductors of predeterminable geometry for receiving and / or transmitting high-frequency signals is applied.
  • the z. B. received with this antenna structure high-frequency signals must be an electronic unit, eg. As an antenna amplifier, fed so that they can be further processed and audible in the case of radio signals or made visible in the case of television signals.
  • the adjustment of the characteristic impedance of the line is particularly important in order to adapt the antenna impedance (impedance of the antenna structure at the base point) to the subsequent module (electronic device such as an antenna amplifier or playback devices).
  • the subsequent module electronic device such as an antenna amplifier or playback devices.
  • incorrect or unsuitable characteristic impedances of the connecting cable lead to a loss of performance due to increased reflection.
  • FIG. 1 An embodiment according to the prior art is shown in FIG.
  • two strip-shaped conductors 2, 3 are applied to connect an antenna structure, not shown, with an electronic device, also not shown, which run parallel to each other.
  • the one conductor 2 is connected to the antenna structure and the other conductor 3 is connected to further connecting means with the downstream electronic device (or vice versa).
  • the actual signal transmission according to this embodiment works satisfactorily in the prior art, but it is when low-impedance characteristic resistances are desirable and thereby the two conductors 2, 3 getting wider and above all the distances between these two conductors 2, 3rd must always be smaller, it comes to performance losses as already stated above.
  • the invention is therefore based on the object to improve the antenna system of a vehicle to the effect that the initially described disadvantages are avoided and the performance of such an antenna system is improved.
  • At least one additional conductor is assigned to the two strip-shaped conductors running parallel to one another and arranged on the carrier.
  • the two strip-shaped conductors are coupled to one another more capacitively by at least one additional conductor, that is to say by additional conductive structures which are in each case galvanically connected to one or the other conductor or only capacitively coupled to one another Parallel guidance, so that by this at least one additional conductor lower wave resistances can be realized.
  • additional conductive structures which are in each case galvanically connected to one or the other conductor or only capacitively coupled to one another Parallel guidance, so that by this at least one additional conductor lower wave resistances can be realized.
  • that is significantly lower impedance characteristic impedance can be realized as in the case of pure parallel guidance of the conductor, so that thereby the performance of the entire antenna system is significantly improved.
  • the additional conductor 4 is formed separately from the conductors 2, 3 and overlaps at least one of the conductors 2, 3, preferably as shown in Figure 1, both conductors 2, 3 in regions.
  • the at least one additional conductor 4 is not electrically (ie electrically) connected to the two conductors 2, 3, but there is a purely capacitive coupling of the two conductors 2, 3 via the additional conductor 4. While it is shown in FIG.
  • the conductors 2, 3 are arranged on one side of the carrier 1 and the additional conductor 4 on the opposite side of the carrier 1, it is alternatively or additionally also possible for the conductors 2, 3 and the additional conductor 4 are arranged on the same side of the carrier 1, wherein between the conductors 2, 3 and the additional conductor 4, an insulating material, for. B. a film with or without adhesive properties, is arranged.
  • the structure of the antenna system can be taken into account.
  • the conductors 2, 3 are arranged and to improve the performance of an additional conductor 4 both on the other side of the carrier 1 and another additional conductor 4 on the same side of the Carrier 1, on which the two conductors 2, 3 are provided, wherein in the latter case between the conductors 2, 3 and the additional conductor 4 on the same side of the carrier 1, the insulating material is arranged.
  • This insulating material is required for the purpose of capacitive coupling, since without an insulating material, an electrical short circuit would occur between the conductors 2, 3 and the additional conductor 4, which must be avoided.
  • the additional conductor 4 is first applied to the carrier 1, after which the application of the insulating material takes place and Thereafter, the two conductors 2, 3 are applied, which may optionally be covered by a protective layer (eg a film).
  • a protective layer eg a film
  • FIGS. 2 to 4 it is shown that, in an alternative manner according to the invention, a separate additional conductor 4 is formed by the two conductors 2, 3 and these respective conductors 4 are interlinked with each other. This means that their own additional conductors 4 of the conductors 2, 3 form additional conductive structures with galvanic connection to the two other conductors 2, 3.
  • FIG. 2 shows in an embodiment according to the invention that the respective additional conductors 4 are L-shaped and protrude from the longitudinal side of one conductor 2 in the direction of the other conductor 3 and vice versa and are intermeshed with one another.
  • each additional conductor (4) are designed F-shaped and project from the longitudinal side of a conductor 2 in the direction of the other conductor 3 and vice versa and are interlocked.
  • FIG. 4 shows, as a further embodiment according to the invention, that the respective additional conductors 4 are triangular (or alternatively square, rectangular, or comparable geometric shapes) and protrude from the longitudinal side of one conductor 2 in the direction of the other conductor 3 and vice versa, and in the longitudinal course of the conductors 2, 3, the additional conductor 4 of a conductor 2 with those of the other conductor 3 alternate.
  • FIG. 6 again illustrates the antenna system as the basic representation, which is the basis for the invention and is provided with the reference number 5.
  • An antenna structure 6 (in the simplest case a straight or differently extending conductor or a plurality of conductors) is connected to an antenna amplifier 8 via a transfer point 7.
  • the antenna amplifier 8 (which is only an example of such an electronic device, but may also have other functions), the signals received via the antenna structures 6 via a cable 9 to a downstream and not shown further electronic device supplied.
  • the antenna system 5 is arranged by way of example in the region of a vehicle window 10, wherein the vehicle window 10 is inserted in a vehicle body 11 in a manner known per se.
  • the antenna structures 6 are integrated on and / or in the vehicle window 10 and are connected to the carrier 1 with the conductors 2 to 4 in the transfer point 7 (which may be a connector, for example).
  • the antenna amplifier 8 is arranged and fixed to the vehicle body 11 in a suitable manner.

Abstract

La présente invention concerne un système d'antenne (5) d'un véhicule, comprenant une structure d'antenne qui est connectée à un premier conducteur en forme de bande (2) et à un autre conducteur en forme de bande (3), les deux conducteurs (2, 3) étant disposés sur un support (1) de façon à s'étendre parallèlement l'un à l'autre, caractérisé en ce qu'au moins un conducteur supplémentaire (4) est associé aux conducteurs (2, 3).
PCT/EP2014/076421 2013-12-04 2014-12-03 Procédé de réduction de la valeur de l'impédance caractéristique de conducteurs plats flexibles pour la connexion de structures d'antennes sur des vitres de véhicules WO2015082550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013224842 2013-12-04
DE102013224842.3 2013-12-04

Publications (1)

Publication Number Publication Date
WO2015082550A1 true WO2015082550A1 (fr) 2015-06-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/076421 WO2015082550A1 (fr) 2013-12-04 2014-12-03 Procédé de réduction de la valeur de l'impédance caractéristique de conducteurs plats flexibles pour la connexion de structures d'antennes sur des vitres de véhicules

Country Status (2)

Country Link
DE (1) DE102014117781A1 (fr)
WO (1) WO2015082550A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016079311A1 (fr) 2014-11-21 2016-05-26 Hirschmann Car Communication Gmbh Antenne pelliculaire intégrée dans le pare-brise

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5777532A (en) * 1997-01-15 1998-07-07 Tfr Technologies, Inc. Interdigital slow wave coplanar transmission line
US20030034172A1 (en) * 2000-01-22 2003-02-20 Saint Gobain Glass France Device for connecting a window with electrical functions
US20090231065A1 (en) * 2004-09-15 2009-09-17 Mitac Technology Corp. Circuit structure and circuit substance for modifying characteristic impedance using different reference planes
US7903042B2 (en) * 2003-11-04 2011-03-08 Saint-Gobain Glass France Antenna arrangement and window fitted with this antenna arrangement
US20110298567A1 (en) * 2004-09-24 2011-12-08 Oracle America, Inc., formerly known as Sun Microsystems, Inc. System and method for constant characteristic impedance in a flexible trace interconnect array

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5777532A (en) * 1997-01-15 1998-07-07 Tfr Technologies, Inc. Interdigital slow wave coplanar transmission line
US20030034172A1 (en) * 2000-01-22 2003-02-20 Saint Gobain Glass France Device for connecting a window with electrical functions
US7903042B2 (en) * 2003-11-04 2011-03-08 Saint-Gobain Glass France Antenna arrangement and window fitted with this antenna arrangement
US20090231065A1 (en) * 2004-09-15 2009-09-17 Mitac Technology Corp. Circuit structure and circuit substance for modifying characteristic impedance using different reference planes
US20110298567A1 (en) * 2004-09-24 2011-12-08 Oracle America, Inc., formerly known as Sun Microsystems, Inc. System and method for constant characteristic impedance in a flexible trace interconnect array

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YU CHIN LIM ET AL: "Properties of Alternately Charged Coplanar Parallel Strips by Conformal Mappings", IEEE TRANSACTIONS ON ELECTRON DEVICES,, vol. ED-15, no. 3, 1 March 1968 (1968-03-01), pages 173 - 180, XP001370041 *

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