EP2215685A1 - Antenna arrangement and method - Google Patents

Antenna arrangement and method

Info

Publication number
EP2215685A1
EP2215685A1 EP08804940A EP08804940A EP2215685A1 EP 2215685 A1 EP2215685 A1 EP 2215685A1 EP 08804940 A EP08804940 A EP 08804940A EP 08804940 A EP08804940 A EP 08804940A EP 2215685 A1 EP2215685 A1 EP 2215685A1
Authority
EP
European Patent Office
Prior art keywords
conductor structure
conductor
antenna arrangement
signals
antenna
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.)
Granted
Application number
EP08804940A
Other languages
German (de)
French (fr)
Other versions
EP2215685B1 (en
Inventor
Rainer Kuehne
Michael Thole
Urs Natzschka
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.)
Continental Advanced Antenna GmbH
Original Assignee
ED Enterprises AG
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 ED Enterprises AG filed Critical ED Enterprises AG
Publication of EP2215685A1 publication Critical patent/EP2215685A1/en
Application granted granted Critical
Publication of EP2215685B1 publication Critical patent/EP2215685B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers

Definitions

  • the invention relates to an antenna arrangement or a method according to the preamble of the independent claims.
  • the heating field serves as an antenna for the reception of U KW signals (FM signals).
  • FM signals U KW signals
  • AM signals LMK signals
  • both a heating of the entire disk is possible as well as the accommodation of a separate antenna structure.
  • a heating of the disc is possible, with only one heating circuit is provided.
  • the conductor structure on the disk does not have to be decoupled from the on-board power supply via blocking circuits in terms of frequency or else a second ter heating circuit be provided.
  • integration of at least one antenna structure electrically decoupled from the heating field is possible.
  • Another advantage is the crossing-free arrangement of the second conductor structure in the loops of a heat conductor. Additional complex contact bridges are unnecessary.
  • a uniform heating can be achieved in that the loop-shaped heating conductor is designed by varying its width so that the resistance value is equal to the other heating conductors.
  • the second conductor structure for capacitively coupling with the first conductor structure.
  • the Wienleiterfeld can be shared as an antenna structure without complex AM blocking circuits are necessary.
  • the first conductor structure can be used as an FM antenna structure and the second conductor structure as an AM antenna conductor structure, it being possible to design the first conductor structure for FM diversity reception.
  • the second conductor structure can also be used for the high-frequency connection of an impedance network for influencing the directivity for the FM reception via the second conductor structure coupled to the first conductor structure in terms of high frequency. This saves separate contacts for the connection of this impedance network.
  • the second conductor structure can be designed both for a frequency range of FM and AM signals. It is also possible to accommodate a further conductor structure in a comb-like manner in another loop-shaped heating conductor, if different frequency ranges are to be decoupled from one another or different orientations of the antenna conductor structure are desired for different polarizations.
  • Figure 1 shows a first antenna arrangement according to the invention with a in the
  • Figure 2 shows an embodiment of the antenna arrangement according to the invention with horizontally and vertically trained Antennenleitererstruktu- ren.
  • the antenna arrangement according to the invention consists of a first conductor structure 1 on a window pane 2, preferably the rear window of a motor vehicle, and of a second conductor structure 3.
  • the conductor structure 1 is formed by the heating field for heating the window pane 2. This consists of the parallel running in the horizontal direction of the heating wires 4 and the vertical bus bars 5, in which the heating current is fed.
  • At least one conductor 41 of the heating field runs in a loop between the actual heating field and the outer edge 6 of the disc 5, which is usually formed as a metallic frame.
  • the loops 7 of the conductor 41 extend substantially in the horizontal direction parallel to the actual heating wires 4. The upper end of the loops 7 is guided over a vertical conductor section on the right busbar.
  • the second conductor structure 3 protrudes like a comb into the loops 7 formed by the conductor 41.
  • the conductor structure 3 is galvanically separated from the first conductor structure 1 and thus from the heating field. There are therefore no blocking circuits for high-frequency decoupling of the conductor structure 3 from the electrical system required.
  • the conductor structure 3 can be used both for a frequency range for receiving AM signals, z. B. in the LM K range, as well as for the reception of FM signals, z. B. in the U KW range, be designed, for. B. by different lengths of the fingers 31, which protrude into the loops 7.
  • the conductor pattern 3 may be provided only for receiving AM signals and the conductor pattern 1 only for receiving FM signals. In this case, at least a cost and weight-intensive AM blocking circuit for electrical system decoupling is unnecessary.
  • the conductor structure 3 is designed to receive FM signals, the heating field for the reception of FM signals can be shared via a suitable capacitive coupling between at least one of the fingers 31 and the loops 7 of the conductor 41.
  • an impedance network 10 is then connected to the connection point 11 of the second conductor structure in the base 12 of the FM antenna structure via a diversity evaluation device 9 assigned to the FM reception device 8.
  • a diversity evaluation device 9 assigned to the FM reception device 8.
  • the directivity changes in FM reception, which again allows undisturbed FM reception.
  • the AM receiving device 13 is ineffective in FM reception from the connection point 11.
  • FIG. 2 shows a further embodiment of the invention.
  • the conductor 41 has on the conductor section on the upper edge of the disc 2 a secondary circuit in the form of the conductor 42, which is also designed loop-shaped.
  • the z. B. is designed for AM reception, when the second conductor structure 3 is designed for FM reception.
  • the loops 71 of the conductor 42 extend in the vertical direction.
  • the further conductor structure 14 can also be used for another FM frequency range. B. for C2x (vehicle to vehicle communication or vehicle for infrastructure communication) in contrast to U KW radio reception or TV reception. Due to the different orientation of the loops 7 and 71 and thus also of the conductor structures 3 and 14, an improved separation at differently polarized transmitting or receiving signals possible. This different orientation of the conductor structure 3 and 14 can also be used for diversity reception, ie the diversity evaluation device 9 switches over in each case to that conductor loop 3 or 14 which offers the best reception. This switching can also be combined with the connection or disconnection of the impedance network 10, resulting in a total of four virtual FM antenna beam characteristics.
  • Heating wires 4 of the heating field This can be achieved most easily by varying its width relative to the other heating wires 4, such that a higher heating current flows through it in order to achieve the same heating power. This must also be taken into account for the width of the conductor 42 in FIG. 2 in the secondary circuit of the conductor 41.

Abstract

A first conductor structure (1) is provided in an antenna arrangement, particularly for a motor vehicle windshield antenna, said conductor structure being formed by the heat field of a window pane (2), and a second conductor structure (3) configured as an antenna conductor structure and galvancially separated from the heat field. At least one conductor (41) of the heat field extends in a looped fashion between the actual heat field and an outer edge of the pane (5). The second conductor structure (3) projects into loops (7) formed by said at least one conductor (41) of the heating field in a comb-like manner.

Description

Beschreibung description
Titeltitle
Antennenanordnung sowie VerfahrenAntenna arrangement and method
Stand der TechnikState of the art
Die Erfindung geht aus von einer Antennenanordnung oder einem Verfahren nach Gattung der unabhängigen Ansprüche.The invention relates to an antenna arrangement or a method according to the preamble of the independent claims.
Aus der US 6,307,516 Bl ist bereits eine solche Antennenanordnung bekannt.Such an antenna arrangement is already known from US Pat. No. 6,307,516 B1.
Dort dient das Heizfeld als Antenne für den Empfang von U KW-Signalen (FM- Signalen). Zwischen dem oberen Rand der Kraftfahrzeug- Fensterscheibe und dem Heizfeld befindet sich eine separate, nicht mit dem Heizfeld galvanisch verbundene Leitungsstruktur als Antenne für den Empfang von LMK-Signalen (AM- Signalen).There, the heating field serves as an antenna for the reception of U KW signals (FM signals). Between the upper edge of the motor vehicle window pane and the heating field there is a separate line structure, which is not galvanically connected to the heating field, as an antenna for receiving LMK signals (AM signals).
Es sind auch Heizstrukturen bekannt, bei denen das komplette Heizfeld als Antenne für AM- und FM-Signale genutzt wird, z. B. gemäß EP 1 076 375 A2.There are also known heating structures in which the entire heating field is used as an antenna for AM and FM signals, z. B. according to EP 1 076 375 A2.
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Mit der erfindungsgemäßen Antennenanordnung bzw. dem Verfahren ist sowohl eine Beheizung der ganzen Scheibe möglich als auch die Unterbringung einer separaten Antennenstruktur. Gegenüber der US 6,307,516 Bl ergibt sich der Vorteil, dass auch im Bereich der zweiten Leiterstruktur eine Beheizung der Scheibe möglich ist, wobei nur ein Heizkreis vorzusehen ist. Gegenüber der Struktur der EP 1 076 375 A2 muss die Leiterstruktur auf der Scheibe nicht über Sperrkreise hochfrequenzmäßig vom Bordnetz entkoppelt werden oder ein zwei- ter Heizkreis vorgesehen sein. Insbesondere bei geringen Scheibengrößen ist eine Integration mindestens einer vom Heizfeld galvanisch entkoppelten Antennenstruktur möglich. Ein weiterer Vorteil ist die kreuzungsfreie Anordnung der zweiten Leiterstruktur in den Schleifen eines Heizleiters. Zusätzliche aufwendige Kontaktbrücken sind dadurch entbehrlich.With the antenna arrangement according to the invention or the method both a heating of the entire disk is possible as well as the accommodation of a separate antenna structure. Compared to US 6,307,516 Bl, there is the advantage that also in the region of the second conductor structure a heating of the disc is possible, with only one heating circuit is provided. Compared to the structure of EP 1 076 375 A2, the conductor structure on the disk does not have to be decoupled from the on-board power supply via blocking circuits in terms of frequency or else a second ter heating circuit be provided. Especially with small pane sizes, integration of at least one antenna structure electrically decoupled from the heating field is possible. Another advantage is the crossing-free arrangement of the second conductor structure in the loops of a heat conductor. Additional complex contact bridges are unnecessary.
Durch die Anordnung der ersten und zweiten Leiterstruktur auf der gleichen Scheibenseite können alle Strukturen vorteilhaft mit demselben Siebdruck aufgebracht werden.By arranging the first and second conductor structure on the same side of the disk, all structures can advantageously be applied with the same screen printing.
Vorteilhaft lässt sich eine gleichmäßige Beheizung dadurch erzielen, dass der schleifenförmig verlaufende Heizleiter durch Variation seiner Breite so ausgeführt ist, dass der Widerstandswert jeweils gleich ist gegenüber den übrigen Heizleitern.Advantageously, a uniform heating can be achieved in that the loop-shaped heating conductor is designed by varying its width so that the resistance value is equal to the other heating conductors.
Vorteilhaft ist es zumindest die zweite Leiterstruktur dafür auszulegen, mit der ersten Leiterstruktur kapazitiv zu koppeln. Damit kann das Heizleiterfeld als Antennenstruktur mitbenutzt werden, ohne dass aufwendige AM-Sperrkreise notwendig sind. Vorteilhaft kann die erste Leiterstruktur als FM-Antennenstruktur und die zweite Leiterstruktur als AM-Antennenleiterstruktur benutzt werden, wobei die Möglichkeit besteht, die erste Leiterstruktur für einen FM-Diversity- Empfang auszulegen. Die zweite Leiterstruktur kann dabei auch für die hochfrequenzmäßige Zuschaltung eines Impedanznetzwerkes zur Beeinflussung der Richtwirkung für den FM- Empfang über die hochfrequenzmäßig mit der ersten Leiterstruktur gekoppelte zweite Leiterstruktur verwendet werden. Dies erspart separate Kontaktierungen für die Anschaltung dieses Impedanznetzwerkes.It is advantageous at least to design the second conductor structure for capacitively coupling with the first conductor structure. Thus, the Heizleiterfeld can be shared as an antenna structure without complex AM blocking circuits are necessary. Advantageously, the first conductor structure can be used as an FM antenna structure and the second conductor structure as an AM antenna conductor structure, it being possible to design the first conductor structure for FM diversity reception. The second conductor structure can also be used for the high-frequency connection of an impedance network for influencing the directivity for the FM reception via the second conductor structure coupled to the first conductor structure in terms of high frequency. This saves separate contacts for the connection of this impedance network.
Soll überhaupt auf eine hochfrequenzmäßige Kopplung zum Heizfeld verzichtet werden, so kann die zweite Leiterstruktur sowohl für einen Frequenzbereich von FM- als auch von AM-Signalen ausgelegt werden. Es ist auch möglich eine weitere Leiterstruktur in einem weiteren schleifenförmig ausgebildeten Heizleiter kammartig unterzubringen, wenn verschiedene Frequenzbereiche voneinander entkoppelt sein sollen oder für verschiedene Polarisationen unterschiedliche Ausrichtungen der Antennenleiterstruktur erwünscht sind. Beschreibung der ZeichnungenIf it is even necessary to dispense with a high-frequency coupling to the heating field, the second conductor structure can be designed both for a frequency range of FM and AM signals. It is also possible to accommodate a further conductor structure in a comb-like manner in another loop-shaped heating conductor, if different frequency ranges are to be decoupled from one another or different orientations of the antenna conductor structure are desired for different polarizations. Description of the drawings
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen:Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description. Show it:
Figur 1 eine erste Antennenanordnung nach der Erfindung mit einer imFigure 1 shows a first antenna arrangement according to the invention with a in the
Wesentlichen horizontal ausgebildeten Antennenleiterstruktur,Substantially horizontally formed antenna conductor structure,
Figur 2 eine Ausgestaltung der Antennenanordnung nach der Erfindung mit horizontal und vertikal ausgebildeten Antennenleiterstruktu- ren.Figure 2 shows an embodiment of the antenna arrangement according to the invention with horizontally and vertically trained Antennenleitererstruktu- ren.
Ausführungsformen der Erfindung.Embodiments of the invention.
Wie Figur 1 zeigt, besteht die Antennenanordnung nach der Erfindung aus einer ersten Leiterstruktur 1 auf einer Fensterscheibe 2 vorzugsweise der Heckscheibe eines Kraftfahrzeugs sowie aus einer zweiten Leiterstruktur 3. Die Leiterstruktur 1 wird durch das Heizfeld zum Beheizen der Fensterscheibe 2 gebildet. Dieses besteht aus den parallel in horizontaler Richtung verlaufenden Heizdrähten 4 und den vertikalen Sammelschienen 5, in die der Heizstrom eingespeist wird. Mindestens ein Leiter 41 des Heizfeldes verläuft schleifenförmig zwischen dem eigentlichen Heizfeld und dem Außenrand 6 der Scheibe 5, der meist als metallischer Rahmen ausgebildet ist. Die Schleifen 7 des Leiters 41 verlaufen im Wesentlichen in horizontaler Richtung parallel zu den eigentlichen Heizdrähten 4. Das obere Ende der Schleifen 7 ist über einen vertikalen Leiterabschnitt auf die rechte Sammelschiene geführt. Die zweite Leiterstruktur 3 ragt kammartig in die vom Leiter 41 gebildeten Schleifen 7 hinein. Somit ist die Leiterstruktur 3 galvanisch von der ersten Leiterstruktur 1 und damit vom Heizfeld getrennt. Es sind daher keine Sperrkreise zur hochfrequenzmäßigen Entkopplung der Leiterstruktur 3 vom Bordnetz erforderlich. Die erste Leiterstruktur 1 und die zweite LeiterstrukturAs FIG. 1 shows, the antenna arrangement according to the invention consists of a first conductor structure 1 on a window pane 2, preferably the rear window of a motor vehicle, and of a second conductor structure 3. The conductor structure 1 is formed by the heating field for heating the window pane 2. This consists of the parallel running in the horizontal direction of the heating wires 4 and the vertical bus bars 5, in which the heating current is fed. At least one conductor 41 of the heating field runs in a loop between the actual heating field and the outer edge 6 of the disc 5, which is usually formed as a metallic frame. The loops 7 of the conductor 41 extend substantially in the horizontal direction parallel to the actual heating wires 4. The upper end of the loops 7 is guided over a vertical conductor section on the right busbar. The second conductor structure 3 protrudes like a comb into the loops 7 formed by the conductor 41. Thus, the conductor structure 3 is galvanically separated from the first conductor structure 1 and thus from the heating field. There are therefore no blocking circuits for high-frequency decoupling of the conductor structure 3 from the electrical system required. The first conductor structure 1 and the second conductor structure
3 können vorzugsweise auf der gleichen Scheibenseite im selben Siebdruck aufgebracht werden.3 can preferably be applied on the same side of the disc in the same screen printing.
Die Leiterstruktur 3 kann sowohl für einen Frequenzbereich zum Empfang von AM-Signalen, z. B. im LM K- Bereich, als auch zum Empfang von FM-Signalen, z. B. im U KW-Bereich, ausgelegt sein, z. B. durch unterschiedliche Längen der Finger 31, die in die Schleifen 7 ragen. Alternativ hierzu kann die Leiterstruktur 3 nur zum Empfang von AM-Signalen vorgesehen sein und die Leiterstruktur 1 nur zum Empfang von FM-Signalen. In diesem Falle ist zumindest ein kosten- und gewichtsintensiver AM-Sperrkreis zur Bordnetzentkopplung entbehrlich. Wenn die Leiterstruktur 3 zum Empfang von FM-Signalen ausgebildet ist, kann über eine geeignete kapazitive Kopplung zwischen mindestens einem der Finger 31 und den Schleifen 7 des Leiters 41 das Heizfeld für den Empfang von FM-Signalen mitbenutzt werden. Auch dann sind keine Bordnetzentkopplungen notwendig. Falls das Heizfeld zum Empfang von FM-Signalen vorgesehen ist, kann ohne erheblichen Zusatzaufwand (zusätzliche Hochfrequenzkontaktierungen des Heizfeldes) ein Diversity- Betrieb realisiert werden. Bei gestörtem FM-Empfang wird dann im Fußpunkt 12 der FM-Antennenstruktur über eine der FM- Empfangseinrichtung 8 zugeordnete Diversity-Auswerteeinrichtung 9 ein Impe- danznetzwerk 10 an den Anschlusspunkt 11 der zweiten Leiterstruktur geschaltet. Über die Kapazitätverkopplung des Leiters 41 des Heizfeldes mit der zweiten Leiterstruktur 3 und damit mit dem Impedanznetzwerk 10, ändert sich die Richtwirkung bei FM-Empfang, was wieder einen ungestörten FM-Empfang ermöglicht. Die AM- Empfangseinrichtung 13 ist bei FM-Empfang vom Anschlusspunkt 11 wirkungslos geschaltet.The conductor structure 3 can be used both for a frequency range for receiving AM signals, z. B. in the LM K range, as well as for the reception of FM signals, z. B. in the U KW range, be designed, for. B. by different lengths of the fingers 31, which protrude into the loops 7. Alternatively, the conductor pattern 3 may be provided only for receiving AM signals and the conductor pattern 1 only for receiving FM signals. In this case, at least a cost and weight-intensive AM blocking circuit for electrical system decoupling is unnecessary. If the conductor structure 3 is designed to receive FM signals, the heating field for the reception of FM signals can be shared via a suitable capacitive coupling between at least one of the fingers 31 and the loops 7 of the conductor 41. Even then, no on-board decoupling is necessary. If the heating field is provided for receiving FM signals, a diversity operation can be realized without significant additional effort (additional Hochfrequenzkontaktierungen the heating field). In the case of disturbed FM reception, an impedance network 10 is then connected to the connection point 11 of the second conductor structure in the base 12 of the FM antenna structure via a diversity evaluation device 9 assigned to the FM reception device 8. About the capacitance coupling of the conductor 41 of the heating field with the second conductor structure 3 and thus with the impedance network 10, the directivity changes in FM reception, which again allows undisturbed FM reception. The AM receiving device 13 is ineffective in FM reception from the connection point 11.
Figur 2 zeigt eine weitere Ausführungsform der Erfindung. Der Leiter 41 besitzt auf dem Leiterabschnitt am Oberrand der Scheibe 2 einen Nebenkreis in Form des Leiters 42, der ebenfalls schleifenförmig ausgestaltet ist. In diese Schleifen 71 des Leiters 42 ragt ebenso kammartig eine weitere Leiterstruktur 14, die z. B. für den AM- Empfang ausgelegt ist, wenn die zweite Leiterstruktur 3 für FM- Empfang ausgelegt ist. Im Gegensatz zur Leiterstruktur 3 verlaufen die Schleifen 71 des Leiters 42 in vertikaler Richtung.FIG. 2 shows a further embodiment of the invention. The conductor 41 has on the conductor section on the upper edge of the disc 2 a secondary circuit in the form of the conductor 42, which is also designed loop-shaped. In these loops 71 of the conductor 42 protrudes comb-like another conductor structure 14, the z. B. is designed for AM reception, when the second conductor structure 3 is designed for FM reception. In contrast to the conductor structure 3, the loops 71 of the conductor 42 extend in the vertical direction.
Die weitere Leiterstruktur 14 kann auch für einen anderen FM- Frequenzbereich benutzi/mitbenutzt werden, z. B. für C2x (Fahrzeug zu Fahrzeug- Kommunikation oder Fahrzeug zur Infrastruktur- Kommunikation) im Gegensatz zu U KW- Rundfunkempfang oder TV-Empfang. Durch die unterschiedliche Orientierung der Schleifen 7 und 71 und damit auch der Leiterstrukturen 3 und 14, ist eine verbesserte Trennung bei unterschiedlich polarisierten Sende- oder Empfangs- signalen möglich. Auch kann diese unterschiedliche Orientierung der Leiterstruktur 3 und 14 für einen Diversity- Empfang benutzt werden, d. h. die Diversity- Auswerteeinrichtung 9 schaltet jeweils auf jene Leiterschleife 3 oder 14 um, die den besten Empfang bietet. Dieses Umschalten kann auch mit dem Zu- oder Ab- schalten des Impedanznetzwerkes 10 kombiniert werden, so dass insgesamt vier virtuelle FM-Antennen-Strahlcharakteristiken entstehen.The further conductor structure 14 can also be used for another FM frequency range. B. for C2x (vehicle to vehicle communication or vehicle for infrastructure communication) in contrast to U KW radio reception or TV reception. Due to the different orientation of the loops 7 and 71 and thus also of the conductor structures 3 and 14, an improved separation at differently polarized transmitting or receiving signals possible. This different orientation of the conductor structure 3 and 14 can also be used for diversity reception, ie the diversity evaluation device 9 switches over in each case to that conductor loop 3 or 14 which offers the best reception. This switching can also be combined with the connection or disconnection of the impedance network 10, resulting in a total of four virtual FM antenna beam characteristics.
Wenn die Scheibe 2 gleichmäßig beheizt werden soll, ist sicherzustellen, dass der schleifenförmig verlaufende Leiter 41 der Figur 1 trotz seiner Verlängerung für die Schleifenbildung den gleichen Widerstandswert aufweist wie die übrigenIf the disc 2 is to be heated uniformly, it must be ensured that the loop-shaped conductor 41 of FIG. 1 has the same resistance value as the rest despite its lengthening for looping
Heizdrähte 4 des Heizfeldes. Dies kann am einfachsten durch Variation seiner Breite gegenüber den übrigen Heizdrähten 4 erreicht werden, derart, dass ihn ein höherer Heizstrom durchfließt, um die gleiche Heizleistung zu erzielen. Dies muss auch für die Breite des Leiters 42 bei Figur 2 im Nebenkreis des Leiters 41 berücksichtigt werden.Heating wires 4 of the heating field. This can be achieved most easily by varying its width relative to the other heating wires 4, such that a higher heating current flows through it in order to achieve the same heating power. This must also be taken into account for the width of the conductor 42 in FIG. 2 in the secondary circuit of the conductor 41.
Durch senkrechte Leiter 15 im Heizfeld kann der Diversity- Effekt verbessert werden. By vertical conductor 15 in the heating field, the diversity effect can be improved.

Claims

Ansprüche claims
1. Antennenanordnung, insbesondere für eine Kraftfahrzeugscheibenantenne, bestehend aus einer ersten Leiterstruktur (1), die durch das Heizfeld einer Fensterscheibe (2) gebildet ist und aus einer zweiten Leiterstruktur (3), die als Antennenleiterstruktur ausgebildet ist und die galvanisch getrennt vom1. Antenna arrangement, in particular for a motor vehicle windscreen antenna, consisting of a first conductor structure (1), which is formed by the heating field of a window pane (2) and a second conductor structure (3) which is formed as an antenna conductor structure and the galvanically isolated from
Heizfeld angeordnet ist, dadurch gekennzeichnet, dass mindestens ein Leiter (41) des Heizfeldes schleifenförmig zwischen dem eigentlichen Heizfeld und einem Außenrand der Scheibe (5) verläuft und dass in die von diesem mindestens einen Leiter des Heizfeldes (41) gebildeten Schleifen (7) die zweite Leiterstruktur (3) kammartig hineinragt.Heating panel is arranged, characterized in that at least one conductor (41) of the heating field looped between the actual heating field and an outer edge of the disc (5) and in that of this at least one conductor of the heating field (41) loops (7) formed the second conductor structure (3) protrudes like a comb.
2. Antennenanordnung nach Anspruch 1, dadurch gekennzeichnet, dass die zweite Leiterstruktur (3) auf der gleichen Scheibenseite wie die erste Leiterstruktur (1) aufgebracht ist.2. Antenna arrangement according to claim 1, characterized in that the second conductor structure (3) on the same disc side as the first conductor structure (1) is applied.
3. Antennenanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der schleifenförmig verlaufende Leiter (41) des Heizfeldes durch Variation in seiner Breite so ausgeführt ist, dass sein Widerstandswert trotz seiner Verlängerung durch die Schleifenbildung der gleiche ist, wie der der übrigen Heizdrähte (4).3. Antenna arrangement according to claim 1 or 2, characterized in that the loop-shaped conductor (41) of the heating field is designed by variation in its width so that its resistance, despite its lengthening by the looping is the same as that of the other heating wires ( 4).
4. Antennenanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Leiterstrukturen (1, 3) im Siebdruckverfahren aufgebracht sind.4. Antenna arrangement according to one of claims 1 to 3, characterized in that the conductor structures (1, 3) are applied by screen printing.
5. Antennenanordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zumindest die zweite Leiterstruktur (3) dafür ausgelegt ist, hochfrequenzmäßig mit der ersten Leiterstruktur (1) kapazitiv zu koppeln. 5. Antenna arrangement according to one of claims 1 to 4, characterized in that at least the second conductor structure (3) is adapted for high frequency with the first conductor structure (1) to couple capacitively.
6. Antennenanordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die erste Leiterstruktur (1) für einen Frequenzbereich von FM- Signalen ausgelegt ist und die zweite Leiterstruktur (3) für einen Frequenzbereich von AM-Signalen.6. Antenna arrangement according to one of claims 1 to 5, characterized in that the first conductor structure (1) is designed for a frequency range of FM signals and the second conductor structure (3) for a frequency range of AM signals.
7. Antennenanordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die zweite Leiterstruktur (3) sowohl für einen Frequenzbereich zum Empfang von FM-Signalen, als auch für einen weiteren Frequenzbereich, z. B. zum Empfang von AM-Signalen oder weiteren FM-Signalen aus- gelegt ist.7. Antenna arrangement according to one of claims 1 to 5, characterized in that the second conductor structure (3) for both a frequency range for receiving FM signals, as well as for a further frequency range, for. B. for receiving AM signals or other FM signals is designed.
8. Antennenanordnung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die erste Leiterstruktur (1) für einen FM-Diversity-Empfang ausgelegt ist.8. Antenna arrangement according to one of claims 1 to 6, characterized in that the first conductor structure (1) is designed for FM diversity reception.
9. Antennenanordnung nach einem der Ansprüche 5, 6 oder 8, dadurch gekennzeichnet, dass die zweite Leiterstruktur (3) für die hochfrequenzmäßige Zuschaltung eines Impedanznetzwerkes (10) zur Beeinflussung der Richtwirkung für den FM- Empfang über die hochfrequenzmäßig mit der ersten Leiterstruktur (1) gekoppelte zweite Leiterstruktur (3) ausgebildet ist.9. Antenna arrangement according to one of claims 5, 6 or 8, characterized in that the second conductor structure (3) for the high-frequency connection of an impedance network (10) for influencing the directivity for the FM reception over the high frequency with the first conductor structure (1 ) Coupled second conductor structure (3) is formed.
10. Verfahren zum Betreiben einer Antennenanordnung, insbesondere für eine Kraftfahrzeugscheibenantenne nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass an der ersten Leiterstruktur (1) FM-Signale und an der zweiten Leiterstruktur (3) AM-Signale abgegriffen werden.10. A method for operating an antenna arrangement, in particular for a motor vehicle window pane antenna according to one of claims 1 to 9, characterized in that at the first conductor structure (1) FM signals and at the second conductor structure (3) AM signals are tapped.
11. Verfahren zum Betreiben einer Leiterstruktur, insbesondere für eine Kraftfahrzeugscheibenantenne nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass an der zweiten Leiterstruktur (3) sowohl FM- als auch AM-Signale abgegriffen werden.11. A method for operating a conductor structure, in particular for a motor vehicle window pane antenna according to one of claims 1 to 9, characterized in that at the second conductor structure (3) both FM and AM signals are tapped.
12. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die erste Leiterstruktur (1) für einen Diversity- Betrieb verwendet wird, wobei die zweite Leiterstruktur (3) zur hochfrequenzmäßigen Anschaltung eines Impedanznetz- Werkes (10) bei gestörtem FM- Empfang verwendet wird. 12. The method according to claim 9, characterized in that the first conductor structure (1) is used for a diversity operation, wherein the second conductor structure (3) for high-frequency connection of an impedance network plant (10) is used in disturbed FM reception.
EP08804940.8A 2007-11-30 2008-10-01 Antenna arrangement and method Active EP2215685B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007057714A DE102007057714A1 (en) 2007-11-30 2007-11-30 Antenna arrangement and method
PCT/EP2008/063115 WO2009068350A1 (en) 2007-11-30 2008-10-01 Antenna arrangement and method

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EP2215685A1 true EP2215685A1 (en) 2010-08-11
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WO2009068350A1 (en) 2009-06-04
EP2215685B1 (en) 2013-08-28
DE102007057714A1 (en) 2009-06-04
CN101878560B (en) 2014-04-09
US20100328170A1 (en) 2010-12-30
CN101878560A (en) 2010-11-03
TW200924282A (en) 2009-06-01

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