EP3304647B1 - Antenna module - Google Patents

Antenna module Download PDF

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Publication number
EP3304647B1
EP3304647B1 EP16723704.9A EP16723704A EP3304647B1 EP 3304647 B1 EP3304647 B1 EP 3304647B1 EP 16723704 A EP16723704 A EP 16723704A EP 3304647 B1 EP3304647 B1 EP 3304647B1
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EP
European Patent Office
Prior art keywords
patch antenna
antenna
support
antenna module
recesses
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EP16723704.9A
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German (de)
French (fr)
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EP3304647A1 (en
Inventor
Guy-Aymar Chakam
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Continental Automotive GmbH
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Continental Automotive GmbH
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0428Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Definitions

  • the invention relates to an antenna module, in particular a DSRC (Dedicated Short Range Communication) antenna module for toll collection by a motor vehicle.
  • DSRC Dedicated Short Range Communication
  • WHITTOW WG ET AL Designing multi-band and high bandwidth antennas with heterogeneous substrates", ANTENNAS AND PROPAGATION IN WIRELESS COMMUNICATIONS (APWC), 2012 IEEE-APS TOPICAL CONFERENCE ON, IEEE, September 2, 2012, pages 748-751, XP032456568 , DOI: 10.1109 / APWC.2012.6324938 ISBN: 978-1-4673-0404-7 .
  • JOSEPH S COLBURN ET AL "Patch Antennas on Externally Perforated High Dielectric Constant Substrates", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, Vol. 47, No. 12, December 1, 1999, XP011003668, ISSN: 0018-926X and US6307509B1 each antenna modules are known.
  • An object of the invention is to optimize an antenna module.
  • the object is solved by the subject matter of claim 1.
  • an antenna module such as in DE 10 2010 015 823 A1 or at least internally known antenna modules, for example (but not only) for toll collection and / or DRSC applications
  • embodiments of an antenna module with a carrier based on a substrate made of a FR4 material can be implemented cost effectively, the actually a use of a FR4 material opposed thereto
  • the problem of possibly potentially relatively lossy FR4 material can be counteracted by combining the use of the FR4 material with at least one (passage) recess in at least one laterally adjacent edge (offset) of the patch antenna (eg in the plane of the carrier / substrate below this), for example, the Patchatenne surrounding area. Saving material in areas laterally around the patch antenna (through recesses) in a carrier can reduce losses in the FR4 carrier and / or save material.
  • FR-4 may generally refer to a class of flame retardant and flame retardant composites including epoxy resin and fiberglass fabric (for example, wikipedia.org).
  • the abbreviation FR can stand for English flame retardant, e.g. according to UL94V-0.
  • FR-4 is available in different versions on the market.
  • the composite may be mixed with chemicals such as polybrominated diphenyl ether based on bromine.
  • FR-4 can be used as an electrically non-conductive carrier material in electrical printed circuit boards.
  • FR-4 may e.g. (in contrast to similar composites such as FR-2), so-called hard paper, have better creep resistance and lower water absorption.
  • An advantage of FR-4 may also be good adhesion, which may allow the permanent attachment of copper wiring patterns to the substrate.
  • Other applications may be in the field of electromechanics as differently shaped spacer or support elements.
  • the carrier has one or more in regions offset in each case to the patch antenna parallel to the edges of the patch antenna, through a plane defined by the surface of the carrier plane, in particular elongate passage recess (s).
  • the carrier in regions adjacent to the patch antenna, has, for example, one, two, three or four elongated recesses extending parallel to the edges of the patch antenna and extending around corners of the patch antenna on.
  • the carrier In regions laterally outside and thereby in a plane parallel to the plane of the patch antenna between at least two parallel to the edges of the patch antenna running Recesses, have a web or a plurality of webs.
  • the recesses in the carrier may e.g. Be slits.
  • recesses in particular with circular polarization of the patch antenna, run along all edges of the patch antenna on the carrier.
  • recesses in the carrier run along less than all (thus for example along two) edges of the patch antenna on the carrier, in particular only on resonant edges of the patch antenna.
  • a ground plane of the antenna module is arranged on a plane opposite the plane of the patch antenna with respect to the carrier, and held with one or more spacers at a distance from the carrier, in particular to keep a defined distance of the patch antenna to the ground plane.
  • the ground plane of the antenna module is simple and inexpensive as a conductive (planar) layer of particular copper formed on a circuit board.
  • the Patchatenne is formed with bevels in two corners.
  • At least the patch antenna has recesses in the form of round passage recesses and / or plated-through holes through the patch antenna and through the carrier, in particular more than three or more than five or more than nine in two mutually orthogonal directions. Vias through the patch antenna and through the carrier can reduce losses (when transmitting with the patch antenna).
  • Some embodiments of the invention relate to the use of the antenna module as a Dedicated Short Range Communication (DSRC) antenna module for a motor vehicle, and / or as an antenna module for or connected to / connected to a toll collection module for a motor vehicle, which is particularly efficient Enable toll collection.
  • DSRC Dedicated Short Range Communication
  • Fig. 1 shows in perspective as an embodiment of the invention, an antenna module 1 with a on one (FR4-based) carrier 2 patch antenna 3 (with the exception of the bevels 4, 5 at two of their corners 31, 32, 33, 34) approximately rectangular (eg square ) Surface.
  • FR4-based on one
  • the carrier 2 formed on the basis of a FR4 substrate has one or two or three or as here at least four (passage) recesses 10, 11, 12, 13 passing through it, in the form of e.g. Slotting, which is e.g. could reduce losses (the radiation of the patch antenna 3) caused by the FR4 material of the substrate of the carrier 2.
  • the (four here) recesses (in the form of (through) holes)) 10, 11, 12, 13 in the carrier 2 are here elongated (ie longer parallel to an edge / a side / edge 35, 36, 37, 38th the patch antenna 3 as perpendicular to an edge / side / edge 35, 36, 37, 38 of the patch antenna 3 wide).
  • the (four here) recesses 10, 11, 12, 13 in the carrier 2 run here in each case one of the corners 31, 32, 33, 34 of the patch antenna 3, and portions thereof are elongated respectively on both sides of one of the corners 31, 32, 33, 34.
  • the patch antenna 3 connect its (2) center region (in its (2) plane) below the patch antenna 3 (eg same / approximately the same shape as the patch antenna 3) with its (2) here rectangular (and here square) outer frame portion 20th
  • An outer e.g. Rectangular circumferentially formed frame 20 of the carrier 2 is connected to an inner portion of the carrier 2 (below the patch antenna 3, for example, the same shape as they) by webs 21, 22, 23, 24 (between each two recesses).
  • the rectangular encircling frame 20 is formed here of four pairs each in parallel, and in pairs mutually orthogonal elongated interconnected sections.
  • the patch antenna 3 (surface) is applied.
  • the patch antenna 3 may be formed of different materials and is for example of a conductive metal.
  • the antenna module may have holes and / or via contacts 41, 42, 43 etc. through the patch antenna 3 and / or the carrier 2, eg at least more than three or more than five or (as in FIG Fig. 1 vertical and horizontal) more than nine in two mutually orthogonal directions.
  • Fig. 2 shows in perspective in plan view as an embodiment of the invention, an antenna module 1 with a rectangular patch antenna 3 on a rectangular (FR4) carrier 2 with in the recesses 10, 11, 12, 13 visible ground surface 50 and / or (the ground plane bearing) board.
  • This mass surface 50 of the antenna module 1 is arranged on a side opposite the patch antenna 3 with respect to the carrier 2, and held with one or more spacers 80 at a distance d from the carrier 2.
  • the ground surface 60 of the antenna module 1 is arranged here as a conductive layer of particular copper on a printed circuit board.
  • Fig. 3 shows an oblique laterally / above an embodiment of the invention with a (FR4) carrier, between a patch antenna and a spaced-apart with at least one spacer ground surface.
  • Fig. 3 is a mass surface 50 (on a board 51) visible through recesses 10, 11, 12, 13 in the carrier 1 and visible from the side of the antenna module 1.
  • This mass surface 50 of the antenna module 1 is arranged on a side opposite the carrier 2 of the patch antenna 3, and held with one or more spacers at a distance d from the carrier 2.
  • the ground surface 50 of the antenna module 1 is arranged here as a conductive layer of particular copper on a circuit board.
  • the ground plane 50 of the antenna module 1 can also be arranged as a conductive layer of, in particular, copper on a patch antenna 3 on the far side of the printed circuit board.
  • Embodiments of an antenna module 1 according to the invention may be, for example, a dedicated short range communication antenna module for a motor vehicle and / or an antenna module 1 for one or more connected to a schematically indicated toll collection module 60 for a motor vehicle.

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  • Details Of Aerials (AREA)

Description

Die Erfindung betrifft ein Antennenmodul, insbesondere ein DSRC (Dedicated Short Range Communication) Antennenmodul für eine Mauterfassung seitens eines Kraftfahrzeugs.The invention relates to an antenna module, in particular a DSRC (Dedicated Short Range Communication) antenna module for toll collection by a motor vehicle.

Aus DE 10 2010 015 823 A1 und WO 2009/142983 , US2007257844A1 , US 2008/297417 ,Out DE 10 2010 015 823 A1 and WO 2009/142983 . US2007257844A1 . US 2008/297417 .

WHITTOW W G ET AL: "Designing multi-band and high bandwidth antennas with heterogeneous substrates", ANTENNAS AND PROPAGATION IN WIRELESS COMMUNICATIONS (APWC), 2012 IEEE-APS TOPICAL CONFERENCE ON, IEEE, 2. September 2012, Seiten 748-751, XP032456568, DOI: 10.1109/ APWC.2012.6324938 ISBN: 978-1-4673-0404-7 , WHITTOW WG ET AL: "Designing multi-band and high bandwidth antennas with heterogeneous substrates", ANTENNAS AND PROPAGATION IN WIRELESS COMMUNICATIONS (APWC), 2012 IEEE-APS TOPICAL CONFERENCE ON, IEEE, September 2, 2012, pages 748-751, XP032456568 , DOI: 10.1109 / APWC.2012.6324938 ISBN: 978-1-4673-0404-7 .

JOSEPH S COLBURN ET AL: "Patch Antennas on Externally Perforated High Dielectric Constant Substrates", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, Bd. 47, Nr. 12, 1. Dezember 1999, XP011003668, ISSN: 0018-926X und US6307509B1 sind jeweils Antennenmodule bekannt. JOSEPH S COLBURN ET AL: "Patch Antennas on Externally Perforated High Dielectric Constant Substrates", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, Vol. 47, No. 12, December 1, 1999, XP011003668, ISSN: 0018-926X and US6307509B1 each antenna modules are known.

Eine Aufgabe der Erfindung ist es, ein Antennenmodul zu optimieren. Die Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Einige besonders vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen und der Beschreibung angegeben.An object of the invention is to optimize an antenna module. The object is solved by the subject matter of claim 1. Some particularly advantageous embodiments of the invention are specified in the subclaims and the description.

Gegenüber einem Antennenmodul wie z.B. in DE 10 2010 015 823 A1 oder zumindest intern bekannten Antennenmodulen können - z.B. (aber nicht nur) für Mauterfassungs- und/oder DRSC- Anwendungenerfindungsgemäße Ausgestaltungen eines Antennenmoduls mit einem Träger basierend auf einem Substrat aus einem FR4 Material kostengünstig realisiert sein, wobei der eigentlich einer Verwendung eines FR4 Materials hierfür entgegenstehenden Problematik eines möglicherweise an sich potentiell eher relativ verlustbehafteten FR4 Materials begegnet werden kann durch Kombination der Verwendung des FR4 Materials mit mindestens einer (Durchgangs-)Ausnehmung in mindestens einem seitlich neben Rändern (versetzt zu) der Patchantenne (z.B. in der Ebene des Trägers/ Substrats unterhalb dieser) verlaufenden, die Patchatenne z.B. umgebenden Bereich. Eine Einsparung von Material in Bereichen seitlich um die Patchantenne herum (durch Ausnehmungen) in einem Träger kann Verluste im FR4 Träger verringern und/oder Material sparen.Opposite an antenna module such as in DE 10 2010 015 823 A1 or at least internally known antenna modules, for example (but not only) for toll collection and / or DRSC applications embodiments of an antenna module with a carrier based on a substrate made of a FR4 material can be implemented cost effectively, the actually a use of a FR4 material opposed thereto The problem of possibly potentially relatively lossy FR4 material can be counteracted by combining the use of the FR4 material with at least one (passage) recess in at least one laterally adjacent edge (offset) of the patch antenna (eg in the plane of the carrier / substrate below this), for example, the Patchatenne surrounding area. Saving material in areas laterally around the patch antenna (through recesses) in a carrier can reduce losses in the FR4 carrier and / or save material.

Generell kann (laut z.B. wikipedia.de) FR-4 (oder auch "FR4") generell eine Klasse von schwer entflammbaren und flammenhemmenden Verbundwerkstoffen beinhaltend Epoxidharz und Glasfasergewebe bezeichnen. Die Abkürzung FR kann für englisch flame retardant (dt. flammenhemmend) stehen, z.B. gemäß UL94V-0. FR-4 ist in verschiedenen Varianten am Markt verfügbar. Der Verbundwerkstoff kann mit chemischen Stoffen wie polybromiertem Diphenylether basierend auf Brom versetzt sein. FR-4 kann unter anderem als elektrisch nicht leitendes Trägermaterial bei elektrischen Leiterplatten eingesetzt werden. FR-4 kann z.B. (im Gegensatz zu ähnlichen Verbundwerkstoffen wie FR-2), sogenanntes Hartpapier, eine bessere Kriechstromfestigkeit und eine geringere Wasseraufnahme aufweisen. Ein Vorteil von FR-4 kann auch eine gute Haftbarkeit sein, welche das dauerhafte Anbringen von Leiterbahnstrukturen aus Kupfer auf dem Trägermaterial ermöglichen kann. Weitere Anwendungen können im Bereich der Elektromechanik als verschiedenartig geformte Abstands- oder Stützelemente liegen.In general, FR-4 (or "FR4") may generally refer to a class of flame retardant and flame retardant composites including epoxy resin and fiberglass fabric (for example, wikipedia.org). The abbreviation FR can stand for English flame retardant, e.g. according to UL94V-0. FR-4 is available in different versions on the market. The composite may be mixed with chemicals such as polybrominated diphenyl ether based on bromine. Among other things, FR-4 can be used as an electrically non-conductive carrier material in electrical printed circuit boards. FR-4 may e.g. (in contrast to similar composites such as FR-2), so-called hard paper, have better creep resistance and lower water absorption. An advantage of FR-4 may also be good adhesion, which may allow the permanent attachment of copper wiring patterns to the substrate. Other applications may be in the field of electromechanics as differently shaped spacer or support elements.

Nach einigen Ausgestaltungen der Erfindung weist der Träger eine oder mehrere in Bereichen jeweils versetzt zu der Patchantenne parallel zu den Rändern der Patchantenne, durch eine durch die Oberfläche des Trägers definierten Ebene verlaufende, insbesondere längliche Durchgangs-Ausnehmung(en) auf.According to some embodiments of the invention, the carrier has one or more in regions offset in each case to the patch antenna parallel to the edges of the patch antenna, through a plane defined by the surface of the carrier plane, in particular elongate passage recess (s).

Nach den Ausgestaltungen der Erfindung weist der Träger in Bereichen neben der Patchantenne z.B. eine, zwei, drei oder vier parallel zu den Rändern der Patchantenne verlaufende und jeweils um Ecken der Patchantenne herum verlaufende längliche Ausnehmungen auf.According to the embodiments of the invention, in regions adjacent to the patch antenna, the carrier has, for example, one, two, three or four elongated recesses extending parallel to the edges of the patch antenna and extending around corners of the patch antenna on.

Zur (mechanischen / stabilisierenden) Verbindung eines äußeren Rahmenbereichs des Trägers des Antennenmoduls mit einem Bereich des Trägers unterhalb der Patchantenne kann der Träger (in Bereichen seitlich außerhalb und dabei in einer Ebene parallel zur Ebene der Patchantenne zwischen mindestens zwei parallel zu den Rändern der Patchantenne verlaufenden Ausnehmungen) einen Steg oder mehrere Stege aufweisen.For (mechanical / stabilizing) connection of an outer frame region of the carrier of the antenna module with a region of the carrier below the patch antenna, the carrier (in regions laterally outside and thereby in a plane parallel to the plane of the patch antenna between at least two parallel to the edges of the patch antenna running Recesses) have a web or a plurality of webs.

Die Ausnehmungen im Träger können z.B. Schlitze sein.The recesses in the carrier may e.g. Be slits.

Nach einigen Ausgestaltungen der Erfindung mit insbesondere zirkularer Polarisierung der Patchantenne verlaufen Ausnehmungen (Löcher, Schlitze) im Träger entlang allen Kanten der Patchantenne auf dem Träger.According to some embodiments of the invention, in particular with circular polarization of the patch antenna, recesses (holes, slots) in the carrier run along all edges of the patch antenna on the carrier.

Nach einigen Ausgestaltungen der Erfindung mit insbesondere linearer Polarisierung der Patchantenne verlaufen Ausnehmungen im Träger entlang weniger als allen (also z.B. entlang zwei) Kanten der Patchantenne auf dem Träger, insbesondere nur an resonanten Kanten der Patchantenne.According to some embodiments of the invention, in particular with linear polarization of the patch antenna, recesses in the carrier run along less than all (thus for example along two) edges of the patch antenna on the carrier, in particular only on resonant edges of the patch antenna.

Nach einigen Ausgestaltungen der Erfindung ist eine Massefläche des Antennenmoduls auf einer insbesondere der Ebene der Patchantenne hinsichtlich des Trägers gegenüberliegenden Ebene angeordnet, und mit einem oder mehreren Abstandshaltern in einem Abstand zum Träger gehalten, insbesondere um einen definierten Abstand der Patchantenne zur Massefläche zu halten.According to some embodiments of the invention, a ground plane of the antenna module is arranged on a plane opposite the plane of the patch antenna with respect to the carrier, and held with one or more spacers at a distance from the carrier, in particular to keep a defined distance of the patch antenna to the ground plane.

Nach einigen Ausgestaltungen der Erfindung ist die Massefläche des Antennenmoduls einfach und kostengünstig als eine leitende (flächige) Lage aus insbesondere Kupfer auf einer Leiterplatte ausgebildet.According to some embodiments of the invention, the ground plane of the antenna module is simple and inexpensive as a conductive (planar) layer of particular copper formed on a circuit board.

Nach den Ausgestaltungen der Erfindung ist die Patchatenne mit Abschrägungen in zwei Ecken ausgebildet.According to the embodiments of the invention, the Patchatenne is formed with bevels in two corners.

Nach den Ausgestaltungen der Erfindung weist zumindest die Patchantenne Ausnehmungen in Form von runden Durchgangsausnehmungen und/oder von Durchkontaktierungen durch die Patchantenne und durch den Träger auf, insbesondere je mehr als drei oder mehr als fünf oder mehr als neun in zwei zueinander orthogonalen Richtungen. Durchkontaktierungen durch die Patchantenne und durch den Träger können Verluste (beim Senden mit der Patchantenne) verringern.According to the embodiments of the invention, at least the patch antenna has recesses in the form of round passage recesses and / or plated-through holes through the patch antenna and through the carrier, in particular more than three or more than five or more than nine in two mutually orthogonal directions. Vias through the patch antenna and through the carrier can reduce losses (when transmitting with the patch antenna).

Einige Ausgestaltungen der Erfindung betreffen einen Einsatz des Antennenmoduls als Dedicated Short Range Communication (DSRC) Antennenmodul für ein Kraftfahrzeug, und/oder als Antennenmodul für ein bzw. verbunden mit (/angeschlossen an) einem Mauterfassungs-Modul für ein Kraftfahrzeug, was insbesondere eine effiziente Mauterfassung ermöglichen kann.Some embodiments of the invention relate to the use of the antenna module as a Dedicated Short Range Communication (DSRC) antenna module for a motor vehicle, and / or as an antenna module for or connected to / connected to a toll collection module for a motor vehicle, which is particularly efficient Enable toll collection.

Weitere Merkmale und Vorteile einiger vorteilhafter Ausgestaltungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen der Erfindung anhand der Zeichnung. Dabei zeigt:

  • Fig. 1 perspektivisch in Draufsicht als Ausführungsbeispiel der Erfindung ein Antennenmodul mit einer rechteckigen Patchantenne auf einem rechteckigen (FR4-)Träger mit Ausnehmungen,
  • Fig. 2 perspektivisch in Draufsicht als Ausführungsbeispiel der Erfindung ein Antennenmodul mit einer rechteckigen Patchantenne auf einem rechteckigen (FR4-)Träger mit in dessen Ausnehmungen sichtbarer Massefläche und/oder Platine,
  • Fig. 3 perspektivisch von schräg seitlich/oben ein Ausführungsbeispiel der Erfindung mit einem (FR4-)Träger, zwischen einer Patchantenne und einer mit mindestens einem Abstandshalter beabstandeten Massefläche.
Further features and advantages of some advantageous embodiments of the invention will become apparent from the following description of embodiments of the invention with reference to the drawing. Showing:
  • Fig. 1 Perspective in plan view as an embodiment of the invention, an antenna module with a rectangular patch antenna on a rectangular (FR4) carrier with recesses,
  • Fig. 2 Perspective in plan view as an embodiment of the invention, an antenna module with a rectangular patch antenna on a rectangular (FR4) carrier with visible in its recesses ground plane and / or board,
  • Fig. 3 perspective from obliquely laterally / above an embodiment of the invention with a (FR4) carrier, between a patch antenna and a spaced-apart with at least one spacer ground surface.

Fig. 1 zeigt perspektivisch als eine Ausgestaltung der Erfindung ein Antennenmodul 1 mit einer auf einem (FR4-basierten) Träger 2 angeordneten Patchantenne 3 mit (mit Ausnahme der Abschrägungen 4, 5 an zweien ihrer Ecken 31, 32, 33, 34) etwa rechteckiger (z.B. quadratischer) Oberfläche. Fig. 1 shows in perspective as an embodiment of the invention, an antenna module 1 with a on one (FR4-based) carrier 2 patch antenna 3 (with the exception of the bevels 4, 5 at two of their corners 31, 32, 33, 34) approximately rectangular (eg square ) Surface.

Der basierend auf bzw. aus einem FR4-Substrat ausgebildete Träger 2 weist eine oder zwei oder drei oder wie hier mindestens vier durch ihn hindurch verlaufende (Durchgangs-) Ausnehmungen 10, 11, 12, 13, in Form von z.B. Schlitzen auf, was z.B. durch das FR4 Material des Substrats des Trägers 2 bedingte Verluste (der Abstrahlung der Patchantenne 3) verringern könnte.The carrier 2 formed on the basis of a FR4 substrate has one or two or three or as here at least four (passage) recesses 10, 11, 12, 13 passing through it, in the form of e.g. Slotting, which is e.g. could reduce losses (the radiation of the patch antenna 3) caused by the FR4 material of the substrate of the carrier 2.

Die (hier vier) Ausnehmungen (in Form von (Durchgangs)-Löchern)) 10, 11, 12, 13 im Träger 2 sind hier länglich (also länger parallel zu einer Kante / einer Seite / einem Rand 35, 36, 37, 38 der Patch-Antenne 3 als senkrecht zu einer Kante / einer Seite / einem Rand 35, 36, 37, 38 der Patch-Antenne 3 breit).The (four here) recesses (in the form of (through) holes)) 10, 11, 12, 13 in the carrier 2 are here elongated (ie longer parallel to an edge / a side / edge 35, 36, 37, 38th the patch antenna 3 as perpendicular to an edge / side / edge 35, 36, 37, 38 of the patch antenna 3 wide).

Es können z.B. (wie in Fig. 1 vier) Ausnehmungen 10, 11, 12, 13 im Träger 2 entlang vier der (Außen-)Kanten (und/oder Seiten und/oder Rändern) 35, 36, 37, 38 der Patch-Antenne 3 verlaufen (insbesondere für eine zirkulare Polarsierung), oder z.B. nur zwei Ausnehmungen entlang z.B. nur zwei Kanten (und/oder Seiten und/oder Rändern) 35, 37 der Patch-Antenne 3 verlaufen.It can eg (as in Fig. 1 four) recesses 10, 11, 12, 13 in the carrier 2 along four of the (outer) edges (and / or sides and / or edges) 35, 36, 37, 38 of the patch antenna 3 run (in particular for a circular polarization ), or, for example, only two recesses along eg only two edges (and / or sides and / or edges) 35, 37 of the patch antenna 3 run.

Die (hier vier) Ausnehmungen 10, 11, 12, 13 im Träger 2 laufen hier um jeweils eine der Ecken 31, 32, 33, 34 der Patch-Antenne 3 herum, und Teilabschnitte von ihnen sind jeweils auf beiden Seiten einer der Ecken 31, 32, 33, 34 länglich.The (four here) recesses 10, 11, 12, 13 in the carrier 2 run here in each case one of the corners 31, 32, 33, 34 of the patch antenna 3, and portions thereof are elongated respectively on both sides of one of the corners 31, 32, 33, 34.

Zwischen den (hier vier) Ausnehmungen 10, 11, 12, 13 im Träger 2 in dessen (2) Bereich(en) 45, 46, 47, 48 seitlich neben (und dabei in seiner (2) Ebene unterhalb) der Patch-Antenne 3 verbinden seinen (2) Mitten-Bereich (in seiner (2) Ebene) unterhalb der Patchantenne 3 (z.B. gleicher / etwa gleicher Form wie die Patchantenne 3) mit seinem (2) hier rechteckigen (und hier quadratischen) äußeren Rahmenbereich 20.Between the (here four) recesses 10, 11, 12, 13 in the carrier 2 in its (2) region (s) 45, 46, 47, 48 laterally next to (and thereby in its (2) plane below) the patch antenna 3 connect its (2) center region (in its (2) plane) below the patch antenna 3 (eg same / approximately the same shape as the patch antenna 3) with its (2) here rectangular (and here square) outer frame portion 20th

Ein äußerer z.B. rechteckförmig umlaufend ausgebildeter Rahmen 20 des Trägers 2 ist mit einem inneren Bereich des Trägers 2 (unterhalb der Patchantenne 3, z.B. mit gleicher Form wie sie)) durch Stege 21, 22, 23, 24 (zwischen hier jeweils zwei Ausnehmungen) verbunden. Der rechteckförmig umlaufend ausgebildete Rahmen 20 ist hier aus vier jeweils paarweise parallelen, und paarweise zueinander orthogonalen länglichen miteinander verbundenen Teilstücken ausgebildet.An outer e.g. Rectangular circumferentially formed frame 20 of the carrier 2 is connected to an inner portion of the carrier 2 (below the patch antenna 3, for example, the same shape as they) by webs 21, 22, 23, 24 (between each two recesses). The rectangular encircling frame 20 is formed here of four pairs each in parallel, and in pairs mutually orthogonal elongated interconnected sections.

Auf dem Träger 2 ist die Patchantenne 3 (flächig) aufgebracht. Die Patchantenne 3 kann aus unterschiedlichen Materialien ausgebildet sein und ist z.B. aus einem leitenden Metall. Das Antennenmodul kann Löcher und/oder Durchgangskontaktierungen 41, 42, 43 usw. durch die Patchantenne 3 und/oder den Träger 2 aufweisen, z.B. mindestens je mehr als drei oder mehr als fünf oder (wie in Fig. 1 senkrecht und waagrecht) mehr als neun in zwei zueinander orthogonalen Richtungen.On the carrier 2, the patch antenna 3 (surface) is applied. The patch antenna 3 may be formed of different materials and is for example of a conductive metal. The antenna module may have holes and / or via contacts 41, 42, 43 etc. through the patch antenna 3 and / or the carrier 2, eg at least more than three or more than five or (as in FIG Fig. 1 vertical and horizontal) more than nine in two mutually orthogonal directions.

Fig. 2 zeigt perspektivisch in Draufsicht als Ausführungsbeispiel der Erfindung ein Antennenmodul 1 mit einer rechteckigen Patchantenne 3 auf einem rechteckigen (FR4-)Träger 2 mit in dessen Ausnehmungen 10, 11, 12, 13 sichtbarer Massefläche 50 und/oder (die Massefläche tragender) Platine. Fig. 2 shows in perspective in plan view as an embodiment of the invention, an antenna module 1 with a rectangular patch antenna 3 on a rectangular (FR4) carrier 2 with in the recesses 10, 11, 12, 13 visible ground surface 50 and / or (the ground plane bearing) board.

Diese Massenfläche 50 des Antennenmoduls 1 ist auf einer der Patchantenne 3 hinsichtlich des Trägers 2 gegenüberliegenden Seite angeordnet, und mit einem oder mehreren Abstandshaltern 80 in einem Abstand d zum Träger 2 gehalten. Die Massefläche 60 des Antennenmoduls 1 ist hier als eine leitende Lage aus insbesondere Kupfer auf einer Leiterplatte angeordnet.This mass surface 50 of the antenna module 1 is arranged on a side opposite the patch antenna 3 with respect to the carrier 2, and held with one or more spacers 80 at a distance d from the carrier 2. The ground surface 60 of the antenna module 1 is arranged here as a conductive layer of particular copper on a printed circuit board.

Fig. 3 zeigt perspektivisch von schräg seitlich/oben ein Ausführungsbeispiel der Erfindung mit einem (FR4-)Träger, zwischen einer Patchantenne und einer mit mindestens einem Abstandshalter beabstandeten Massefläche. Fig. 3 shows an oblique laterally / above an embodiment of the invention with a (FR4) carrier, between a patch antenna and a spaced-apart with at least one spacer ground surface.

In Fig. 3 ist eine Massenfläche 50 (auf einer Platine 51) durch Ausnehmungen 10, 11, 12, 13 in dem Träger 1 hindurch sichtbar und von seitlich des Antennenmoduls 1 sichtbar. Diese Massenfläche 50 des Antennenmoduls 1 ist auf einer am Träger 2 der Patchantenne 3 gegenüberliegenden Seite angeordnet, und mit einem oder mehreren Abstandshaltern in einem Abstand d zum Träger 2 gehalten. Die Massefläche 50 des Antennenmoduls 1 ist hier als eine leitende Lage aus insbesondere Kupfer auf einer Leiterplatte angeordnet. Die Massefläche 50 des Antennenmoduls 1 kann auch als eine leitende Lage aus insbesondere Kupfer auf einer Patchantenne 3 ferneren Seite der Leiterplatte angeordnet sein.In Fig. 3 is a mass surface 50 (on a board 51) visible through recesses 10, 11, 12, 13 in the carrier 1 and visible from the side of the antenna module 1. This mass surface 50 of the antenna module 1 is arranged on a side opposite the carrier 2 of the patch antenna 3, and held with one or more spacers at a distance d from the carrier 2. The ground surface 50 of the antenna module 1 is arranged here as a conductive layer of particular copper on a circuit board. The ground plane 50 of the antenna module 1 can also be arranged as a conductive layer of, in particular, copper on a patch antenna 3 on the far side of the printed circuit board.

Auf der Patchantennen-fernen, in Fig. 3 linken Seite der Platine 51 ist ein Kontaktierungspin 70 zum (z.B. kapazitiven und/oder induktiven und/oder galvanischen) Kontaktieren der Patchantenne 3 des Antennenmoduls 1 angedeutet.On the remote patch antenna, in Fig. 3 Left side of the board 51 is a Kontaktierungspin 70 for (eg capacitive and / or inductive and / or galvanic) contacting the patch antenna 3 of the antenna module 1 indicated.

Erfindungsgemäße Ausgestaltungen eines Antennenmoduls 1 können z.B. ein Dedicated Short Range Communication Antennenmodul für ein Kraftfahrzeug und/oder ein Antennenmodul 1 für ein oder verbunden mit einem schematisch angedeuteten Mauterfassungs-Modul 60 für ein Kraftfahrzeug sein.Embodiments of an antenna module 1 according to the invention may be, for example, a dedicated short range communication antenna module for a motor vehicle and / or an antenna module 1 for one or more connected to a schematically indicated toll collection module 60 for a motor vehicle.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Antennenmodulantenna module
22
Trägercarrier
33
Patchantennepatch antenna
44
Abschrägungbevel
55
Abschrägungbevel
1010
Ausnehmung im TrägerRecess in the carrier
1111
Ausnehmung im TrägerRecess in the carrier
1212
Ausnehmung im TrägerRecess in the carrier
1313
Ausnehmung im TrägerRecess in the carrier
2020
äußerer Rahmen- Bereich des Trägers 2outer frame portion of the carrier 2
2121
Steg des Trägers 2Bridge of the carrier 2
2222
Steg des Trägers 2Bridge of the carrier 2
2323
Steg des Trägers 2Bridge of the carrier 2
2424
Steg des Trägers 2Bridge of the carrier 2
2525
Mitten-Bereich des Trägers 2Center area of the vehicle 2
3131
Ecke der Patchantenne 3Corner of the patch antenna 3
3232
Ecke der Patchantenne 3Corner of the patch antenna 3
3333
Ecke der Patchantenne 3Corner of the patch antenna 3
3434
Ecke der Patchantenne 3Corner of the patch antenna 3
3535
Rand (Kante) an einer der Seiten der Patchantenne 3Edge (edge) on one of the sides of the patch antenna 3
3636
Rand (Kante) an einer der Seiten der Patchantenne 3Edge (edge) on one of the sides of the patch antenna 3
3737
Rand (Kante) an einer der Seiten der Patchantenne 3Edge (edge) on one of the sides of the patch antenna 3
3838
Rand (Kante) an einer der Seiten der Patchantenne 3Edge (edge) on one of the sides of the patch antenna 3
4141
DurchgangskontaktierungDurchgangskontaktierung
4242
DurchgangskontaktierungDurchgangskontaktierung
4343
DurchgangskontaktierungDurchgangskontaktierung
4545
Bereich seitlich neben der Patchantenne 3Area next to the patch antenna 3
4646
Bereich seitlich neben der Patchantenne 3Area next to the patch antenna 3
4747
Bereich seitlich neben der Patchantenne 3Area next to the patch antenna 3
4848
Bereich seitlich neben der Patchantenne 3Area next to the patch antenna 3
5050
Masseflächeground plane
6060
Mauterfassungs-ModulToll acquisition module
7070
PinPin code
8080
Abstandhalterspacer
dd
Abstanddistance

Claims (9)

  1. Antenna module, in particular for a motor vehicle, having a patch antenna (3) and having a support (2) on which the patch antenna (3) is arranged,
    wherein the patch antenna (3) is in rectangular form with chamfers (4, 5) in two corners (5, 6),
    wherein the support (2) contains an FR4 material, and
    wherein the support has, in regions beside the patch antenna (3), four elongate recesses (10, 11, 12, 13) running parallel to the edges (35, 36, 37, 38) of the patch antenna (3) and each running around corners (5, 6) of the patch antenna (3), wherein the patch antenna (3) has further round through-recesses and/or plated-through holes through the patch antenna (3) and through the support (2), in particular more than three or more than five or more than nine each in two mutually orthogonal directions.
  2. Antenna module according to Claim 1,
    characterized
    in that the recesses are elongate through-recesses (10, 11, 12, 13) and
    in that the support (2) has one or more, in particular elongate, through-recesses (10, 11, 12, 13) running in regions respectively offset from the patch antenna (3) parallel to the edges (35, 36, 37, 38) of the patch antenna (3) and through a plane defined by the surface of the support (2).
  3. Antenna module according to either of the preceding claims,
    characterized
    in that the support (2) has, in regions (45, 46, 47, 48) laterally outside and at the same time in a plane parallel to the plane of the patch antenna (3) between at least two recesses (10, 11, 12, 13) running parallel to the edges (35, 36, 37, 38) of the patch antenna (3), a web, in particular in each case in the form of a connection between a region (25) of the support (2) beneath the patch antenna (3) and a region (45, 46, 47, 48) of the support (2) outside a region (25) beneath the patch antenna (3).
  4. Antenna module according to one of the preceding claims,
    characterized
    in that the recesses (10, 11, 12, 13) in the support (2) are slots.
  5. Antenna module according to one of the preceding claims,
    characterized
    in that an earth surface (50) of the antenna module (1) is kept at a distance from the support (2) by means of one or more spacers.
  6. Antenna module according to one of the preceding claims,
    characterized
    in that a or the earth surface (50) of the antenna module (1) is arranged as a conductive layer of in particular copper on a printed circuit board (51), in particular on a side of the support (2) that is opposite the side of the patch antenna (3).
  7. Antenna module according to one of the preceding claims,
    characterized
    in that the antenna module has a feed pin (70) that is in particular capacitively or galvanically connected to the patch antenna (3).
  8. Antenna module according to one of the preceding claims,
    characterized
    in that the patch antenna extends two-dimensionally in a plane parallel to the plane in which the support (2) extends, and is mounted on the support (2) in particular two-dimensionally.
  9. Antenna module according to one of the preceding claims,
    characterized
    in that the antenna module is a "dedicated short range communication" (DSRC) antenna module for a motor vehicle, and/or an antenna module for a toll collection module (60) for a motor vehicle.
EP16723704.9A 2015-06-03 2016-05-11 Antenna module Active EP3304647B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015210319.6A DE102015210319A1 (en) 2015-06-03 2015-06-03 antenna module
PCT/EP2016/060497 WO2016192935A1 (en) 2015-06-03 2016-05-11 Antenna module

Publications (2)

Publication Number Publication Date
EP3304647A1 EP3304647A1 (en) 2018-04-11
EP3304647B1 true EP3304647B1 (en) 2019-10-09

Family

ID=56024261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16723704.9A Active EP3304647B1 (en) 2015-06-03 2016-05-11 Antenna module

Country Status (3)

Country Link
EP (1) EP3304647B1 (en)
DE (1) DE102015210319A1 (en)
WO (1) WO2016192935A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6307509B1 (en) * 1999-05-17 2001-10-23 Trimble Navigation Limited Patch antenna with custom dielectric
EP1804335A4 (en) * 2004-09-30 2010-04-28 Toto Ltd Microstrip antenna and high frequency sensor using microstrip antenna
TW200743260A (en) * 2006-05-04 2007-11-16 Tatung Co Ltd Circular polarized antenna
US20080297417A1 (en) * 2007-05-31 2008-12-04 Symbol Technologies, Inc. Light weight rugged microstrip element antenna incorporating skeleton dielectric spacer
WO2009142983A1 (en) 2008-05-23 2009-11-26 Alliant Techsystems Inc. Broadband patch antenna and antenna system
DE102010015823A1 (en) 2010-04-21 2011-10-27 Continental Automotive Gmbh Antenna module for vehicle, has feeding pin extended to top surface of substrate, where pin has pin extension extending over patch antenna surface, which forms antenna structure for radiating or receiving electromagnetic waves
KR101124131B1 (en) * 2010-08-12 2012-03-21 주식회사 에이스테크놀로지 Patch antenna
KR102054200B1 (en) * 2013-11-20 2020-01-23 삼성전자주식회사 Microstrip patch antenna with cavity-backed structure including via-hole

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BUKHARI S S ET AL: "Heterogeneous substrate microstrip antenna With enhanced bandwidth", 2013 LOUGHBOROUGH ANTENNAS & PROPAGATION CONFERENCE (LAPC), IEEE, 11 November 2013 (2013-11-11), pages 213 - 216, XP032550664, DOI: 10.1109/LAPC.2013.6711885 *

Also Published As

Publication number Publication date
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WO2016192935A1 (en) 2016-12-08
EP3304647A1 (en) 2018-04-11

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