EP1366540B1 - Systeme d'antenne de reception en diversite pour vehicules mobiles - Google Patents

Systeme d'antenne de reception en diversite pour vehicules mobiles Download PDF

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Publication number
EP1366540B1
EP1366540B1 EP03714782A EP03714782A EP1366540B1 EP 1366540 B1 EP1366540 B1 EP 1366540B1 EP 03714782 A EP03714782 A EP 03714782A EP 03714782 A EP03714782 A EP 03714782A EP 1366540 B1 EP1366540 B1 EP 1366540B1
Authority
EP
European Patent Office
Prior art keywords
heating
antenna
diversity
connection
antenna system
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.)
Expired - Lifetime
Application number
EP03714782A
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German (de)
English (en)
Other versions
EP1366540A1 (fr
Inventor
Florian Haidacher
Peter Karl Prassmayer
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.)
Kathrein SE
Original Assignee
Kathrein Werke KG
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 Kathrein Werke KG filed Critical Kathrein Werke KG
Publication of EP1366540A1 publication Critical patent/EP1366540A1/fr
Application granted granted Critical
Publication of EP1366540B1 publication Critical patent/EP1366540B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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

  • Diversity antenna systems are used to improve Reception quality used in vehicles.
  • a scanning antenna system for vehicles is for example become known from EP 1 021 000 A2.
  • an antenna system for vehicles with a multi-antenna system and with at least two Antennas known to be known from their received voltage at least two antenna signals are formed. These signals are fed to a logic switching device with that with different switch positions each have a different switching signal in terms of diversity can be switched through to the receiver. This controls with an IF signal derived from the received signal a diversity processor, which is available the logic switching device in the event of a reception fault another switching position moves on quickly.
  • This known antenna system also includes a controllable switching device and one connected via an antenna line Receiver. There is a fault detector in the receiver, when a reception disturbance occurs in the reception signal or in the IF signal this by a display signal displays.
  • the antenna system with the controllable Switching device comprises several individual antennas or Antenna parts. There is also a common antenna connection point to which the recipient has a Antenna line is connected. Via a switch can then in each case by a Antenna can be switched to another antenna.
  • a heating field is preferred used as an antenna device in a motor vehicle, and preferably a divided antenna field.
  • a heating field is preferred used as an antenna device in a motor vehicle, and preferably a divided antenna field.
  • a heating field integrated in a rear window on several Antenna connection points impedances preferably in Form of reactances switched on, with in series provided switches that have a switching device can be controlled.
  • This allows the Diversity processor when malfunctions occur Antenna signal via another connection point on the heating field be tapped.
  • controllable switches are also provided to different reactances on one assigned to them Connect antenna connection as required and thereby changing the directional characteristics of the antenna.
  • a diversity antenna for a diversity antenna system in a vehicle is also known from DE 100 33 336 A1 become.
  • Many different embodiments of one such diversity antenna system described wherein a heating field is always used as an antenna, which a or several electrically separately controllable sections may include.
  • the heating field is usually included two busbars, each with a heating cable are connected.
  • the heating fields also point out separate antenna connections on which, for example a radio can be connected.
  • At the second antenna connector is then, for example, in the impedance network and a switching device connected, which ensures should be that when a reception problem occurs a changeover of the impedance value in the antenna signal at least one electronically controllable impedance network a different antenna signal in terms of diversity is formed at the output of the connection network.
  • To two switching diodes are used in the impedance network, which generates four different reactances to let.
  • the invention is based on a single active antenna, which is preferred by the heating lines of a heating disc is formed in a vehicle.
  • an amplifier is connected to it at least indirectly.
  • the actual receiving box can be spatially separated be intended for the radio.
  • the amplifier can be integrated into the radio itself. known manner is also a diversity processor appropriate evaluation regarding the quality of the received Antenna signal made.
  • a heating field for example on a rear window Vehicle, usually has two busbars, to which a heating cable leads or a heating connection related to it. This is where the Power connection for heating the heating field.
  • the connection via the two heating connections or the two heating lines or the two busbars are done. In other words, it can So the system according to the invention can be retrofitted, because no additional tapping points on the heating field at which Busbars etc. are necessary, but if necessary the existing two from the busbars or from the Heating field leading heating lines or heating connections can be used.
  • voting and / or Switch box at a second antenna connection point connected.
  • This voting box will either analog or in discrete individual steps by switching a change in the reactance was made so that each receive an optimal antenna signal can be.
  • the diversity processor via a digital-analog converter, first an analog one Signal (i.e. a tuning voltage), which then the voting box is fed. Above that is the reactance changed accordingly, about what the directional characteristic the antenna device formed by the heating field can be changed accordingly.
  • the diversity processor can be used switching between different Reactive resistances are made.
  • the heating field is therefore only on two connection points made a connection, namely at a junction, at least indirectly Radio connected, whereas at the second connection point a voting or switch box is switched on, which at least indirectly via the diversity processor Change in the directional characteristics of the antenna driven becomes.
  • the main advantage of this circuit arrangement is in that the entire arrangement is extremely inexpensive, and that only one amplifier is needed for that in addition, no special heating conductor radiators with additional ones Junctions are necessary, and that because an existing heating field with its two Connection points for the plus or minus pole as connection point for the retrofittable diversity antenna system can be used.
  • a heating field 1 is shown schematically in FIG from two opposite busbars 3 and one Plenty of usually parallel between them Heating wires 5 is formed.
  • Heating fields 1 are in usually housed in the rear windows of vehicles.
  • the wires are inserted into the glass or printed on the glass.
  • Such a heating field 1 is also used as Window antenna 7, hereinafter also antenna 7 called, used and used.
  • the heating field 1 is in a known manner on a motor vehicle battery 11 connected, for example the Positive pole 13 of the battery via a choke 15 with a first Connection 17 of the heating field 1 is connected, which one Connection to which forms a busbar 3.
  • the minus pole 19 is usually ultimately via mass 21 with the second connector 23 electrically connected to the connector to the second busbar 3.
  • An IF signal is generated via the radio a downstream diversity processor 29 evaluated can be.
  • a voting box 31 used, which is controlled analog becomes. This is the output of the diversity processor 29 with the input of a digital-to-analog converter 33 connected, the output of which is connected to an input 35 of the voting box 31 is connected.
  • Suitable voting circles can now be found in the voting box be provided to the connection-side reactance to change and thus the base point of the antenna different to charge. This creates the directional characteristic of the heating field 1 serving as antenna 7 changed.
  • the voting box points to this in the exemplary embodiment shown three branches 37a to 37c connected in parallel, which ultimately between the second port 23 and at least indirectly the second pole 19 or the mass 21 are switched.
  • There is a resistance to this in the first branch 37a R1 and a capacitor C1 one in the second branch 37b Coil L, a capacitor C2 and a capacitance diode D1 and in the third branch 37c a capacitor C3 with a Capacitance diode D2 connected in series.
  • the control line connected to the digital-to-analog converter 33 41 leads to a connection point via a resistor R2 43 between the capacitor C3 and the Capacitance diode D2 in the third branch 37c, the Control line 41 through a resistor R3 to a second Connection point 43 'continued or extended can that between the capacitor C2 and the capacitance diode D1 is connected in the second branch 37b.
  • the diversity processor deteriorates of the transmitter signal is determined, a corresponding The reactive resistances have been changed for so long until an improved input signal at the Antenna is received. You can even have a list of priorities in a storage device (e.g. on the radio or in the Diversity processor) can be stored, which determines is in which direction and / or towards which values First, the reactivities by appropriate Control of the voting box can be changed.
  • a storage device e.g. on the radio or in the Diversity processor
  • the frequency range can thus be in a specific in the voting box Set the frequency range to any termination impedances (variable blind line).
  • the exemplary embodiment according to FIG. 2 largely corresponds that of Figure 1 and differs essentially in that no continuous, i.e. analogous controllable voting box 31, but a switch box 31 ' is used. Therefore, is also in the embodiment according to FIG. 2, a digital-to-analog converter 33 does not necessary, since one directly from the diversity processor 29 a corresponding control of the switch box 31 'is carried out can be.
  • the switch box is again between the ground connection 23 or the negative pole 19 and the second antenna connection 23 switched on and has a control input 43 on what the corresponding from the diversity processor 29 Switching signals are received.
  • the switch box 31 has three branches 37a to 37c, namely a first branch 37a with one Inductance 11, a second branch 37b parallel thereto with a capacity C4 and one connected in series Resistor R4, and a third branch 37c with one Capacity C5. While all three branches are connected together on the ground side is a switch on the antenna field side 47 provided correspondingly via the diversity processor is controlled. This can result in malfunctions when receiving in discrete steps switch to the switch box to be made over it again Reactive resistances and again the directional characteristic to change the antenna.
  • the tuning or tuning box 31 according to FIG. 1 or the switch box 31 'according to FIG. 2 are only examples.
  • the This tuning or switch box 31, 31 ' can also be constructed be done differently, if necessary with multiple branches.

Landscapes

  • Details Of Aerials (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)

Claims (6)

  1. Système d'antenne de réception en diversité pour véhicules, qui comprennent un champ chauffant (1) servant d'antenne, le champ chauffant (1) comprenant deux bornes de chauffage (17, 23) et/ou deux lignes de connexion de chauffage (17a, 23a) ainsi que deux bornes d'antenne (17', 23'), présentant les éléments suivants :
    un amplificateur (25) est branché ou susceptible d'être branché à la première borne d'antenne (17'), lequel est relié ou susceptible d'être relié électriquement du côté sortie à un élément récepteur ou à un poste radio (27),
    il est prévu un processeur de diversité (29) qui évalue de préférence un signal FI de l'élément récepteur ou du poste radio (27),
    la première borne d'antenne (17') et/ou l'amplificateur (25) et/ou l'élément récepteur ou le poste radio (27) sont connectés au processeur de diversité (29),
    à la deuxième borne d'antenne (23') est branché un dispositif pour générer des impédances terminales différentes ou des réactances de tailles différentes, qui est actionné en particulier au moins indirectement via le processeur de diversité (29),
    caractérisé par les autres éléments suivants :
    le système d'antenne de réception en diversité peut être installé a posteriori,
    la première borne d'antenne (17') est formée par la première borne de chauffage (17), par la première ligne de chauffage (17a) et/ou par la première barre collectrice (3) du champ chauffant (1),
    la deuxième borne d'antenne (23') est formée par la deuxième borne de chauffage (23), par la deuxième ligne de chauffage (23a) et/ou par la deuxième barre collectrice (3') du champ chauffant (1),
    le dispositif pour générer des impédances terminales différentes ou des réactances de tailles différentes est constitué par une boíte de mise en accord (3 1 ),
    la boíte de mise en accord (31) comprend un ou plusieurs circuits de commutation au moyen duquel/desquels est réglable de façon analogique la taille des impédances terminales ou des réactances formées dans la boíte de mise en accord.
  2. Système d'antenne de réception en diversité selon la revendication 1, caractérisé en ce que le dispositif pour générer des impédances terminales de tailles différentes ou des réactances de tailles différentes comprend également le processeur de diversité (29).
  3. Système d'antenne de réception en diversité selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que le processeur de diversité (29) est connecté au moins indirectement à un convertisseur numérique/analogique (33) dont la sortie est connectée via une ligne de mise en accord (43) à une entrée de commande de la boíte de mise en accord (31) pour la modification analogique des impédances terminales ou des réactances.
  4. Système d'antenne de réception en diversité selon l'une des revendications 1 à 3, caractérisé en ce que les circuits de commutation ou les branches (37a à 37c) prévu(e)s dans la boíte de mise en accord (31) sont constitué(e)s par au moins une résistance R1 branchée en série et par une capacité (C1) ou par une bobine (L), par une capacité (C2) et par une diode à capacité variable (D1) ou par une capacité (C3) et par une diode à capacité variable (D2).
  5. Système d'antenne de réception en diversité selon la revendication 4, caractérisé en ce que la ligne de mise en accord (41) provenant du convertisseur numérique/analogique (33) est connectée à l'une des bornes de la diode soit directement soit avec interposition d'une ligne intermédiaire (41') pour la mise en accord des diodes à capacité variable (D1, D2) prévues dans les branches ou dans les circuits de commutation (37a à 37c).
  6. Système d'antenne de réception en diversité selon l'une des revendications 1 à 5, caractérisé en ce que la boíte de mise en accord (31) comprend des diodes à capacité variable (D1, D2) pour la modification analogique des impédances terminales ou des réactances.
EP03714782A 2002-03-14 2003-03-06 Systeme d'antenne de reception en diversite pour vehicules mobiles Expired - Lifetime EP1366540B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10211341A DE10211341A1 (de) 2002-03-14 2002-03-14 Diversity-Antennensystem für bewegte Fahrzeuge
DE10211341 2002-03-14
PCT/EP2003/002310 WO2003077362A1 (fr) 2002-03-14 2003-03-06 Systeme d'antenne de reception en diversite pour vehicules mobiles

Publications (2)

Publication Number Publication Date
EP1366540A1 EP1366540A1 (fr) 2003-12-03
EP1366540B1 true EP1366540B1 (fr) 2004-12-08

Family

ID=27797777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03714782A Expired - Lifetime EP1366540B1 (fr) 2002-03-14 2003-03-06 Systeme d'antenne de reception en diversite pour vehicules mobiles

Country Status (16)

Country Link
US (1) US6867739B2 (fr)
EP (1) EP1366540B1 (fr)
JP (1) JP3978428B2 (fr)
KR (1) KR100799084B1 (fr)
CN (1) CN1323463C (fr)
AT (1) ATE284572T1 (fr)
AU (1) AU2003219021A1 (fr)
BR (1) BR0303376A (fr)
CA (1) CA2444249C (fr)
DE (2) DE10211341A1 (fr)
ES (1) ES2233916T3 (fr)
HK (1) HK1065170A1 (fr)
MX (1) MXPA03010096A (fr)
PL (1) PL206363B1 (fr)
RU (1) RU2305878C2 (fr)
WO (1) WO2003077362A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017052A1 (de) 2008-04-03 2009-10-08 Kathrein-Werke Kg Antennenfeld für eine Kraftfahrzeug-Scheibe

Families Citing this family (10)

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DE10352290A1 (de) * 2003-11-08 2005-06-02 Robert Bosch Gmbh Antennenverstärker
DE102007011636A1 (de) * 2007-03-09 2008-09-11 Lindenmeier, Heinz, Prof. Dr. Ing. Antenne für den Rundfunk-Empfang mit Diversity-Funktion in einem Fahrzeug
DE102007056911A1 (de) * 2007-11-26 2009-05-28 Robert Bosch Gmbh Anordnung und Verfahren , insbesondere für eine Kraftfahrzeug-Scheibenantenne zur Beeinflussung der Richtwirkung
US8948702B2 (en) 2009-06-15 2015-02-03 Agc Automotive Americas R&D, Inc. Antenna system and method for optimizing an RF signal
JP5655514B2 (ja) * 2010-11-11 2015-01-21 パナソニックＩｐマネジメント株式会社 車両用アンテナ装置
WO2014149201A1 (fr) 2013-03-15 2014-09-25 Agc Automotive Americas R& D, Inc. Ensemble fenêtre à régions transparentes ayant une fente d'amélioration de performance formée en son sein
DE102017206632B3 (de) * 2017-04-20 2018-03-01 Audi Ag Wandlervorrichtung zur Anpassung einer Antennenimpedanz mit Gehäuse für ein Kraftfahrzeug und Kraftfahrzeug mit eingebauter Wandlervorrichtung
US11554752B2 (en) * 2019-09-03 2023-01-17 Te Connectivity Solutions Gmbh Wavetrap for a vehicle defroster system
US20220384938A1 (en) * 2021-05-19 2022-12-01 Fuba Automotive Electronics Gmbh Radiation coupled antennas with network
US11876300B2 (en) * 2022-04-21 2024-01-16 GM Global Technology Operations LLC Antenna system for a vehicle

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DE2036809C2 (de) 1970-07-24 1983-01-13 Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker Aktive Empfangsantenne mit veränderbaren elektronischen Blindwiderständen
DE3719692A1 (de) 1987-06-12 1988-12-22 Flachenecker Gerhard Mehrantennenanordnung fuer antennendiversity in einer fensterscheibe
JPH04298102A (ja) * 1991-03-26 1992-10-21 Nippon Sheet Glass Co Ltd 自動車用ガラスアンテナ
JPH0621711A (ja) * 1992-06-30 1994-01-28 Sumitomo Chem Co Ltd 自動車用アンテナ装置
JP3458975B2 (ja) * 1993-12-28 2003-10-20 マツダ株式会社 車両用ガラスアンテナ及びその設定方法
DE19607045A1 (de) * 1996-02-24 1997-08-28 Lindenmeier Heinz Empfangsantennen-Scanningdiversitysystem für den Meterwellenbereich für Fahrzeuge
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TW423180B (en) * 1997-01-31 2001-02-21 Terajima Fumitaka Glass antenna device for an automobile
JPH1141020A (ja) * 1997-07-23 1999-02-12 Asahi Glass Co Ltd 自動車用ダイバーシティ受信ガラスアンテナ
DE19858465A1 (de) * 1998-12-17 2000-06-21 Heinz Lindenmeier Scanning-Diversity-Antennensystem für Fahrzeuge
DE10033336A1 (de) * 1999-08-11 2001-04-12 Heinz Lindenmeier Diversityantenne für eine Diversityantennenanlage in einem Fahrzeug
DE10114769B4 (de) * 2001-03-26 2015-07-09 Heinz Lindenmeier Aktive Breitbandempfangsantenne

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017052A1 (de) 2008-04-03 2009-10-08 Kathrein-Werke Kg Antennenfeld für eine Kraftfahrzeug-Scheibe
DE102008017052B4 (de) * 2008-04-03 2010-07-08 Kathrein-Werke Kg Antennenfeld für eine Kraftfahrzeug-Scheibe

Also Published As

Publication number Publication date
MXPA03010096A (es) 2004-03-16
CA2444249C (fr) 2009-10-20
CN1509506A (zh) 2004-06-30
ATE284572T1 (de) 2004-12-15
RU2003129666A (ru) 2005-04-10
KR100799084B1 (ko) 2008-01-29
US20040070544A1 (en) 2004-04-15
JP3978428B2 (ja) 2007-09-19
PL206363B1 (pl) 2010-07-30
CN1323463C (zh) 2007-06-27
HK1065170A1 (en) 2005-02-08
AU2003219021A1 (en) 2003-09-22
BR0303376A (pt) 2004-03-23
RU2305878C2 (ru) 2007-09-10
WO2003077362A1 (fr) 2003-09-18
DE50300187D1 (de) 2005-01-13
JP2005520384A (ja) 2005-07-07
US6867739B2 (en) 2005-03-15
KR20040087857A (ko) 2004-10-15
CA2444249A1 (fr) 2003-09-18
ES2233916T3 (es) 2005-06-16
DE10211341A1 (de) 2003-10-02
EP1366540A1 (fr) 2003-12-03
PL363069A1 (en) 2004-11-15

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