WO2005043672A1 - Fahrzeugscheibenantenne - Google Patents
Fahrzeugscheibenantenne Download PDFInfo
- Publication number
- WO2005043672A1 WO2005043672A1 PCT/EP2004/052188 EP2004052188W WO2005043672A1 WO 2005043672 A1 WO2005043672 A1 WO 2005043672A1 EP 2004052188 W EP2004052188 W EP 2004052188W WO 2005043672 A1 WO2005043672 A1 WO 2005043672A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- decoupling
- vehicle window
- matching circuit
- antenna according
- conductor arrangement
- Prior art date
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 is based on a vehicle window antenna according to the preamble of claim 1.
- a vehicle window antenna is known from EP 0382895 B1.
- EP 0382895 B1 provides separate antenna structures for FM and ⁇ M reception, which are heated separately. Each of the structures has a matching and decoupling circuit. With this implementation, the entire surface of the vehicle window can be heated and the reception is nevertheless optimal
- the FM structures can be used as a feed line to the AM
- the second decoupling and matching circuit is subordinate to the first decoupling and matching circuit, the voltage supply of the heating conductors of the ⁇ M rice does not directly access the voltage supply of the vehicle, but rather the voltage supply for the FM circuit, which is the first decoupling and Adjustment structure has already gone through. Since the first decoupling and
- Adaptation circuit already suppresses the majority of the disturbances present on the voltage supply, the circuit complexity, in particular the filter complexity, for the second decoupling and adaptation circuit can be kept to a minimum. Advantageous refinements are shown in the subclaims. By dividing the second decoupling and matching circuit in two, the filter effort per individual unit can be reduced even further. In addition, this realization corresponds to the assembly with a realization with a non-heated AM structure and is therefore very easy to handle in the manufacturing process of the vehicle.
- the second decoupling and matching circuit is arranged in a secondary circuit of the first decoupling and matching circuit, it is supplied with a smaller direct current than the first decoupling and matching circuit.
- the decoupling means (blocking circuits) of the second decoupling and matching circuit can be designed for a lower direct current.
- FIG. 1 shows a basic circuit diagram of a vehicle window antenna according to the invention and FIG. 2 shows an alternative embodiment with a divided second decoupling and matching circuit.
- FIG. 1 which shows a circuit diagram of the vehicle window antenna including its decoupling and adaptation means
- S denotes a vehicle window, which is preferably the rear window of a motor vehicle, which is inserted into the body K of the vehicle
- Vehicle is used.
- a first conductor arrangement Lp j i made of parallel heating conductors üp, which take up about 2/3 of the height of the vehicle window.
- the heating conductors are connected at their ends by connecting conductors VI and V2.
- Connections AI, A2 of a first decoupling and matching circuit EA1 connect to the connecting conductors VI and V2, the further connections A3 and A4 of which are connected to the poles of a direct current source B, which is preferably a motor vehicle battery.
- a switch SW is provided between the direct current source B and the connection A4.
- An output 01 of the first decoupling and matching circuit EA1 leads to a connection p ⁇ FM signals.
- the exemplary embodiment consists of two heating conductors H ⁇ M which are connected to one another at one end and form a heating loop.
- the two free ends F of the second conductor arrangement L ⁇ M on one side of the rear window S are with connections A5 and
- A6 connected to a second decoupling and matching circuit EA2.
- Two further connections A7 and A8 of the second decoupling and matching circuit EA2 are connected to the leads of the first decoupling and matching circuit EA1 to the connecting conductors VI and V2.
- An output 02 of the second decoupling and matching circuit leads to a connection A ⁇ JM for AM signals.
- the decoupling and matching circuits EA1 and EA2 assigned to the conductor arrangements p ] [ and L ⁇ j have a structure known to the person skilled in the art; see. for example, US-A 4439 771.
- the switch SW is closed, so get the first conductor arrangement LJ? M their heating IJ? M. their heating current I ⁇ M from the current source B via the first decoupling and matching circuit EA1 and the second conductor arrangement L ⁇ via the second decoupling and matching circuit EA2 downstream of the first decoupling and matching circuit EA1 and located in a secondary circuit thereof.
- the direct current IAM for the second conductor arrangement L ⁇ is considerably smaller than the heating current I j ⁇ for the first conductor arrangement LJJM simply because the second decoupling and matching circuit E1 lies in the secondary circuit of the first decoupling and matching circuit EA2. This allows the decoupling means of the second
- Decoupling and matching circuit EA2 can be designed for the lower heating current.
- the decoupling means have the known effect that the RF voltages induced in the conductor arrangements are not short-circuited via the direct current source B.
- the signals of the FM and AM ranges are available for forwarding, for example, to
- the heating conductors are fi-AM HM . of the two conductor arrangements Lpj ⁇ , L ⁇ M at one end, preferably on the side facing the connecting conductor V2, connected to the ground potential.
- FIG. 2 shows an alternative embodiment of the vehicle window antenna with a divided second decoupling and matching circuit.
- the two Teito networks / filter structures, particularly blocking circles, are labeled EA21 and EA22.
- the second conductor arrangement L ⁇ j here consists of one or more unfolded conductor tracks parallel to the conductor tracks L j ⁇ .
- connection ends FI, F2 on opposite sides of the rear window S each lead to a first connection 5 or 6 of one of the sub-networks / feed structures EA21 and EA22.
- the second connections A9 and AlO lead to the connecting conductors VI and V2. Only one of the two filter structures, here EA22, is used to connect the AM signal
Landscapes
- Details Of Aerials (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502004006072T DE502004006072D1 (de) | 2003-10-30 | 2004-09-15 | Fahrzeugscheibenantenne |
EP04766800A EP1683230B1 (de) | 2003-10-30 | 2004-09-15 | Fahrzeugscheibenantenne |
JP2005518220A JP4146470B2 (ja) | 2003-10-30 | 2004-09-15 | 車両ウィンドウアンテナ |
BRPI0408368-7A BRPI0408368B1 (pt) | 2003-10-30 | 2004-09-15 | “antena para o vidro de veículos" |
US10/577,905 US7616162B2 (en) | 2003-10-30 | 2004-09-15 | Window-integrated antenna in a vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10350780A DE10350780A1 (de) | 2003-10-30 | 2003-10-30 | Fahrzeugscheibenantenne |
DE10350780.9 | 2003-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005043672A1 true WO2005043672A1 (de) | 2005-05-12 |
Family
ID=34529944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/052188 WO2005043672A1 (de) | 2003-10-30 | 2004-09-15 | Fahrzeugscheibenantenne |
Country Status (6)
Country | Link |
---|---|
US (1) | US7616162B2 (de) |
EP (1) | EP1683230B1 (de) |
JP (1) | JP4146470B2 (de) |
BR (1) | BRPI0408368B1 (de) |
DE (2) | DE10350780A1 (de) |
WO (1) | WO2005043672A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008011131A1 (de) * | 2008-02-26 | 2009-09-10 | Bayerische Motoren Werke Aktiengesellschaft | Antennenanordnung für ein Kraftfahrzeug |
KR101962499B1 (ko) | 2011-10-28 | 2019-03-26 | 코닝 인코포레이티드 | 적외선 반사도를 갖는 유리 제품 및 이의 제조방법 |
CN105531110B (zh) | 2013-08-26 | 2018-09-07 | 费德罗-莫格尔动力系统有限公司 | 可缠绕的多层隔热罩 |
CN107531562B (zh) | 2015-04-30 | 2021-05-28 | 康宁股份有限公司 | 具有离散的金属银层的导电制品及其制造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0382895A1 (de) * | 1989-02-15 | 1990-08-22 | Robert Bosch Gmbh | Fahrzeug-Scheibenantenne |
EP0751580A2 (de) * | 1995-06-28 | 1997-01-02 | Nippon Sheet Glass Co. Ltd. | Scheibenantenne |
US6307516B1 (en) * | 2000-05-01 | 2001-10-23 | Delphi Technologies, Inc. | Antenna for automobile radio |
EP1315232A1 (de) * | 2001-11-26 | 2003-05-28 | ZENDAR S.p.A. | Fensterantenne für den Empfang von AM- und VHF-Übertragungen, die die Heckscheibenheizung eines Kraftfahrzeugs als strahlende Struktur benutzt |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756495Y2 (ja) * | 1990-01-16 | 1995-12-25 | 日本板硝子株式会社 | 自動車窓用アンテナ装置 |
DE69427506T2 (de) * | 1993-08-20 | 2001-10-04 | Asahi Glass Co Ltd | Scheibenantenne für ein Automobil |
TW431022B (en) * | 1998-09-03 | 2001-04-21 | Asahi Glass Co Ltd | Glass antenna device for an automobile |
JP2000151248A (ja) * | 1998-11-16 | 2000-05-30 | Nippon Sheet Glass Co Ltd | 車両用ガラスアンテナ装置 |
JP2000261228A (ja) * | 1999-03-08 | 2000-09-22 | Harada Ind Co Ltd | 車両用窓ガラスアンテナ装置 |
-
2003
- 2003-10-30 DE DE10350780A patent/DE10350780A1/de not_active Withdrawn
-
2004
- 2004-09-15 JP JP2005518220A patent/JP4146470B2/ja not_active Expired - Fee Related
- 2004-09-15 US US10/577,905 patent/US7616162B2/en active Active
- 2004-09-15 WO PCT/EP2004/052188 patent/WO2005043672A1/de active Application Filing
- 2004-09-15 EP EP04766800A patent/EP1683230B1/de active Active
- 2004-09-15 DE DE502004006072T patent/DE502004006072D1/de active Active
- 2004-09-15 BR BRPI0408368-7A patent/BRPI0408368B1/pt active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0382895A1 (de) * | 1989-02-15 | 1990-08-22 | Robert Bosch Gmbh | Fahrzeug-Scheibenantenne |
EP0751580A2 (de) * | 1995-06-28 | 1997-01-02 | Nippon Sheet Glass Co. Ltd. | Scheibenantenne |
US6307516B1 (en) * | 2000-05-01 | 2001-10-23 | Delphi Technologies, Inc. | Antenna for automobile radio |
EP1315232A1 (de) * | 2001-11-26 | 2003-05-28 | ZENDAR S.p.A. | Fensterantenne für den Empfang von AM- und VHF-Übertragungen, die die Heckscheibenheizung eines Kraftfahrzeugs als strahlende Struktur benutzt |
Also Published As
Publication number | Publication date |
---|---|
DE10350780A1 (de) | 2005-06-02 |
EP1683230B1 (de) | 2008-01-23 |
JP4146470B2 (ja) | 2008-09-10 |
US7616162B2 (en) | 2009-11-10 |
JP2006514509A (ja) | 2006-04-27 |
EP1683230A1 (de) | 2006-07-26 |
BRPI0408368B1 (pt) | 2018-07-03 |
DE502004006072D1 (de) | 2008-03-13 |
BRPI0408368A (pt) | 2006-03-21 |
US20090015493A1 (en) | 2009-01-15 |
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