EP3195409A1 - Film formant antenne à conductivité améliorée - Google Patents

Film formant antenne à conductivité améliorée

Info

Publication number
EP3195409A1
EP3195409A1 EP15766803.9A EP15766803A EP3195409A1 EP 3195409 A1 EP3195409 A1 EP 3195409A1 EP 15766803 A EP15766803 A EP 15766803A EP 3195409 A1 EP3195409 A1 EP 3195409A1
Authority
EP
European Patent Office
Prior art keywords
conductive layer
electrically conductive
printed
additional electrically
conductor structure
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.)
Withdrawn
Application number
EP15766803.9A
Other languages
German (de)
English (en)
Inventor
Bernd Schwarz
Markus Pfletschinger
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.)
Hirschmann Car Communication GmbH
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 EP3195409A1 publication Critical patent/EP3195409A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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

Definitions

  • the invention relates to a device, in particular a film antenna, and a method for producing a film antenna according to the features of the respective preamble of the independent claims.
  • Devices in particular foil antennas, which are installed in vehicles, comprising a plastic carrier with at least one printed on the plastic carrier conductor structure for transmitting and / or receiving high-frequency signals, are known.
  • Printed Foiienantennen are currently installed in various versions in vehicles. Many services, in particular broadcast services (RF services) can be covered with such film antennas. Today, radio, TV, mobile communications and other communication antennas are realized with this technology.
  • RF services broadcast services
  • DE 10 2006 006 924 A1 discloses a carrier film with antenna structures for forming a film antenna.
  • this film antenna are on a plastic carrier various conductor structures that serve as transmitting and / or receiving antennas and leads and leads for this purpose, printed on a plastic carrier.
  • the imprint takes place for example by means of a screen printing process and has proven itself.
  • Today's antennas are usually printed with special silver polymer pastes using the screen printing process. These are extremely resilient to environmental influences and can thus be used without problems in the automotive environment, where harsh ambient conditions (in particular temperature fluctuations, Moisture, contamination, mechanical abrasion and the like) prevail.
  • the disadvantage of such silver polymer pastes is the electrical resistance, which shows a marked disadvantageous effect, in particular in the case of thin (thin) conductor structures.
  • the invention is therefore an object of the invention to improve a device, in particular a film antenna and a method for producing a film antenna in terms of their efficiency.
  • the invention provides that the at least one conductor structure, which is printed on the plastic carrier, is provided with an additional electrically conductive layer.
  • This additional electrically conductive layer significantly increases the conductance of the entire printed conductor structure, preferably by up to a factor of 20.
  • the additional electrically conductive layer is applied galvanically. This has the advantage that by galvanizing a simple and proven method is available to apply the additional electrically conductive layer on the already printed on the plastic carrier conductor structure. For this purpose, all suitable material partners for the printed conductor structure (in particular silver polymer paste) and additional electrically conductive layer are available.
  • this additional electrically conductive layer can also be printed.
  • this additional electrically conductive layer offers the screen printing process. This means that it is possible to successively use the same device for screen printing, first to print the conductor structures, in particular made of silver polymer paste on the plastic carrier and then mitteis the same carrier, but with other material, the additional electrically conductive layer on the previously apply printed conductor structures.
  • the printed-on conductor structure is provided with the additionally electrically conductive layer only on its surface facing away from the plastic carrier. But it can also be targeted to apply the additional electrical layer on the side of the printed conductor structure.
  • the additional electrically conductive layer is formed from copper.
  • copper offers the best possible increase in conductance, taking into account the production of film antennas (especially with regard to environmental impact, provision and disposal of materials) and cost.
  • the printed-on conductor structure and its associated additional electrically conductive layer are arranged on both sides of the plastic carrier. The geometries of the conductor structure are similar on both sides, thus significantly increasing the transmission and reception properties.
  • the conductor structures on the two sides of the plastic carrier are designed differently from each other and partially or not overlap. Because of this two-sided arrangement of the conductor structures, high-frequency microstrip lines can be realized.
  • the at least one conductor structure is provided with an additional electrically conductive layer.
  • this additional electrically conductive layer can be applied galvanically or printed on the conductor structure.
  • the use of copper as an additionally electrically conductive layer in combination with silver polymer pastes, which are printed in the desired geometry on the plastic carrier, is of particular advantage, as a result, the conductivity of the conductor structures and, consequently, the performance of the entire film antenna is significantly increased ,
  • the printed conductor structure and its associated additional electrically conductive layer to be arranged on both sides of the plastic carrier.
  • the geometric configuration of the conductor structures on both sides of the plastic carrier may be the same or different (not completely or partially cover) executed. It is likewise conceivable to print the conductor structures on the two sides of the plastic carrier with the same method and the same materials or with the same method and different materials or with different methods and using different materials. The same applies to the application of the additional electrically conductive layer.
  • Particularly preferred is the imprint of Silberpoiymerpasten in a screen printing process on the plastic carrier on both sides, wherein subsequently the application of the additionally electrically conductive layer of copper takes place galvanically or likewise by screen printing.
  • film antennas with additional metallization are provided with suitable means such as connectors, cables or the like, with an electronic device (such as a matching network, an amplifier or the like), or more precisely with a printed circuit board of a electronic board Device contacted.
  • suitable means such as connectors, cables or the like, with an electronic device (such as a matching network, an amplifier or the like), or more precisely with a printed circuit board of a electronic board Device contacted.
  • the antenna structures in particular antenna surfaces, are at least partially or completely replaced by very fine grid structures and thus appear transparent.
  • Embodiments of film antennas according to the invention which have been produced by a process according to the invention, are illustrated in FIGS. 1 to 3 and explained in more detail below.
  • a film antenna 1 shows, as far as shown in detail, a film antenna 1, in which on a plastic carrier 2 (rigid or flexible) various conductor structures 3 has been printed to form an antenna for transmitting and / or receiving high-frequency signals.
  • the imprint is done in a particularly advantageous manner by means of a simple screen printing process, whereby other printing methods are also possible.
  • the printed conductor structures consist in a particularly advantageous manner of a silver polymer paste, as these initially satisfactory guide values and has a high resistance to environmental influences. Of course, other materials can be used instead of silver polymer paste or in combination.
  • an additional electrically conductive layer 4 which is applied completely, at least partially, advantageously to the conductor structure 3 in an advantageous manner.
  • the plastic carrier 2 can be seen, which forms the film antenna 1 together with the printed conductor structure 3.
  • the conductor structure 3 is, after it has been printed on the plastic substrate 2, provided in a suitable manner, in particular by means of Gaivanmaschine or a printing process or similar method, with the additionally electrically conductive layer 4.
  • the additional electrically conductive layer 4 is arranged completely on and around the conductor structure 3.
  • this layer 4 only on the surface of the conductor structure 3, the plastic carrier
  • FIG. 3 shows that conductor structures 3 are printed on the plastic carrier 2 not only on one side thereof, but on both sides, which are each provided with their own additional electrically conductive layer 4.
  • FIGS. 2 and 3 have exemplary character, just as the geometric configuration of the conductor structures 3 in FIG. 1.
  • inlets and outlets to and from the conductor structures 3. are open directly into an electronic device (such as an amplifier, a converter or the like) and can there in a suitable manner (For example, by soldering, electrical bonding or the like) are electrically contacted.
  • an electronic device such as an amplifier, a converter or the like
  • a suitable manner for example, by soldering, electrical bonding or the like
  • This has the advantage that the contact resistances are kept as low as possible, so thereby Interruptions are avoided and the performance of the entire unit consisting of FOIEENEN antenna and electronic device is improved.
  • a connector is arranged, which corresponds to a mating connector of the electronic device.
  • This electronic device and film antenna can be manufactured and installed independently of each other, so that only then by bringing together connectors of the film antenna and mating connector of the electronic device, the electrical contact takes place.
  • the plastic carrier 2 is made transparent (that is to say transparent to the viewer), it is possible to arrange the film antenna also in the region of a pane of a vehicle, that is also in the field of vision of the driver or front passenger.
  • the film antenna is also in the region of a pane of a vehicle, that is also in the field of vision of the driver or front passenger.
  • the additional electrically conductive layer on the conductor structure can this be significantly reduced in width, without thereby sank as before the conductance, but it is even possible to significantly increase the conductance even with a significant reduction in the width.

Landscapes

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

Abstract

L'invention concerne un dispositif, en particulier une antenne (1) se présentant sous la forme d'un film, et un procédé de fabrication d'une antenne se présentant sous la forme d'un film ; le dispositif comporte un support (2) en matière plastique qui est pourvu d'au moins une structure conductrice (3) pressée sur le support (2) en matière plastique. L'invention est caractérisée en ce que la ou les structures conductrices (3) sont pourvues d'une couche (4) supplémentaire électriquement conductrice.
EP15766803.9A 2014-09-17 2015-09-17 Film formant antenne à conductivité améliorée Withdrawn EP3195409A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014013466 2014-09-17
PCT/EP2015/071358 WO2016042092A1 (fr) 2014-09-17 2015-09-17 Film formant antenne à conductivité améliorée

Publications (1)

Publication Number Publication Date
EP3195409A1 true EP3195409A1 (fr) 2017-07-26

Family

ID=54150406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15766803.9A Withdrawn EP3195409A1 (fr) 2014-09-17 2015-09-17 Film formant antenne à conductivité améliorée

Country Status (3)

Country Link
EP (1) EP3195409A1 (fr)
DE (1) DE102015217861A1 (fr)
WO (1) WO2016042092A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040537A1 (de) * 2009-09-08 2011-03-24 Leonhard Kurz Stiftung & Co. Kg Mehrschichtiges Folienelement sowie Verfahren zur Bereitstellung eines Schwingkreises

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2552002C3 (de) * 1975-11-20 1979-07-19 Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker Funkentstörte Empfangsantenne in der Nähe der Heizleiter auf der Fensterscheibe eines Kraftfahrzeuges
US6204480B1 (en) * 2000-02-01 2001-03-20 Southwall Technologies, Inc. Vacuum deposition of bus bars onto conductive transparent films
DE10018276A1 (de) * 2000-04-13 2001-10-25 Saint Gobain Sekurit D Gmbh Verbundscheibe
US7119751B2 (en) * 2005-03-11 2006-10-10 Agc Automotive Americas R&D, Inc. Dual-layer planar antenna
DE102006006924A1 (de) 2005-10-28 2007-06-06 Hirschmann Car Communication Gmbh Trägerfolie mit Antennenstrukturen mit Aussparungen und/oder Einbuchtungen und/oder Markierungen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040537A1 (de) * 2009-09-08 2011-03-24 Leonhard Kurz Stiftung & Co. Kg Mehrschichtiges Folienelement sowie Verfahren zur Bereitstellung eines Schwingkreises

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016042092A1 *

Also Published As

Publication number Publication date
DE102015217861A1 (de) 2016-03-17
WO2016042092A1 (fr) 2016-03-24

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