EP0332898A1 - Fenêtre pour véhicule - Google Patents

Fenêtre pour véhicule Download PDF

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Publication number
EP0332898A1
EP0332898A1 EP89103269A EP89103269A EP0332898A1 EP 0332898 A1 EP0332898 A1 EP 0332898A1 EP 89103269 A EP89103269 A EP 89103269A EP 89103269 A EP89103269 A EP 89103269A EP 0332898 A1 EP0332898 A1 EP 0332898A1
Authority
EP
European Patent Office
Prior art keywords
slot
viewing window
busbars
coaxial cable
edge
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
EP89103269A
Other languages
German (de)
English (en)
Other versions
EP0332898B1 (fr
Inventor
Hubert Becker
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0332898A1 publication Critical patent/EP0332898A1/fr
Application granted granted Critical
Publication of EP0332898B1 publication Critical patent/EP0332898B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/16—Folded slot antennas

Definitions

  • the invention belongs to the field of heatable viewing windows for vehicles which also carry antennas for mobile radio reception.
  • the invention thus also belongs to the field of disc antennas.
  • Heated viewing panels with antennas are e.g. B. known from DEAS 23 60 672.
  • a conductor system is arranged on these known viewing windows for motor vehicles, which also performs heating functions and antenna functions.
  • electrical resistance elements are arranged between current-carrying busbars, one of which is located near the upper, the other near the lower edge of the pane, while the heating wires run vertically between the busbars.
  • One of the two busbars is divided into two parts and the two parts are capacitively coupled to a receiver at their adjacent ends via feed lines.
  • the two parts of the busbar and any extensions attached to them form an FM antenna.
  • the FM antenna is tuned by theoretical calculation of the length of the extensions and subsequent corrections based on measurements.
  • antennas which are sensitive in the FM range, as well as those for the AM radio range can be integrated into vaporized viewing panes if the covering is designed in accordance with the features of claim 1 and is connected to the receiver.
  • a lens 1 is shown for a vehicle, the outline of which is intended as a rear or front window.
  • This lens is vapor-coated in a known manner with a highly conductive metal coating, so that the metal coating can be regarded as low-resistance.
  • a slot 2 of sufficient length and small width is cut out at a distance a from the one edge of the steamed surface, essentially parallel to it.
  • the heating current is supplied via the edges 5, 6 of the vaporized surface, which lie opposite the slot ends 3, 4.
  • the edges of the metal covering can even form busbars 7, 8 for the power supply. These busbars can also be designed separately.
  • the slot ends 3, 4 also maintain a distance a from the busbar.
  • the slot ends 3, 4 can also be angled with respect to the central region 9 and guided parallel to the busbars 7, 8 in order to achieve a greater slot length.
  • the length of the slot should correspond approximately to the electrical value ⁇ / 2 in the FM range. The length therefore depends on the dielectric constant ⁇ r of the glass of the lens.
  • the width of the slot can be kept very small compared to half the wavelength ⁇ / 2, while the distance a is chosen to be small compared to half the wavelength ⁇ / 2.
  • the value of the constant ⁇ r should expediently be chosen such that the slot ends do not have to be angled in order to tune the slot antenna to the value on the order of ⁇ / 2 in the FM range. Because an angling of the slot ends may affect the flow of the heating current, so that an unheated zone can form between the angled ends.
  • the center of the upper edge at 10 of the slot 2 is connected to the inner conductor 12 of a coaxial cable, while the center of the lower edge at 11 is connected to the chassis via a capacitance 15, which is a short-circuit for FM Lens surrounds.
  • the outer conductor 13 of the coaxial cable is also connected to this chassis.
  • FIG. 2 shows a slot antenna whose electrical length ⁇ / 4 is in the FM range.
  • the base point 21 ends in a circumferential free space 22.
  • the slot 20 extends essentially in the flow direction of the heating current, which closes and closes from the left and right viewing window edges 23, 24. is dissipated.
  • the two slot edges are connected at the base point by means of a transformer 25 which connects to the inner conductor 26 of a coaxial cable, the outer conductor 27 of which is again connected to the chassis.
  • the transmitter 25 Since the vaporized area is surrounded here by a circumferential free space 22, the transmitter 25 also transmits the signals of the AM radio range via the coaxial cable.
  • a circumferential free space 32 the length of which has the electrical value ⁇ in the VHF range, is left between the circumferential edge 31 of the viewing window 30 and the vapor-coated surface. If the inner conductor 33 of a coaxial cable is connected to the vaporized surface, a sufficient signal can be obtained from it for both an FM and an AM receiver.
  • the free space 32 acts as a slot antenna, since the metallic chassis edge for the vehicle window, which is indicated at 34, surrounds the lens 30 on the outside.
  • the vaporized area serves as a conductor.
  • FIG. 4 shows the connection of the upper edge 41 of the slot 40 to a coaxial cable via an interposed strip line 42.
  • a T-shaped structure is left in the vapor-coated surface.
  • the strip line 42 is passed between the two edges 43, 44 of the vertical T-leg and, as FIG. 4a shows more clearly, is connected to the inner conductor 45 of the coaxial cable 46 at the lower end of the viewing window.
  • the vertical slot is covered with a metallized insulating layer 47 which, together with the edges 43, 44, forms a capacitive coupling for the ring alternating current around the slot antenna.
  • the outward-facing metallization on the insulating layer 47 is connected at 48 to the chassis, to which the outer conductor 49 of the coaxial cable 46 is also connected.
  • edges 43, 44 can also serve as a busbar for supplying the heating current.
  • chokes 52, 53 which are effective in the AM area must then be included, which are expediently wound on a common ring core 54.
  • FIG. 5 shows an improved embodiment of the slot antenna according to FIG. 1.
  • a distance h from the slot 55 known from FIG. 1 there is a second slot 56, which corresponds approximately in length and width to the first slot 55.
  • An antenna gain in the horizontal can thereby be achieved.
  • the length of the slot 56 and the distance h from the slot 55 go into the size of the antenna gain and the directivity of the antenna and must be chosen in accordance with the circumstances.

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
EP89103269A 1988-03-12 1989-02-24 Fenêtre pour véhicule Expired - Lifetime EP0332898B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3808401A DE3808401A1 (de) 1988-03-12 1988-03-12 Sichtscheibe fuer fahrzeuge
DE3808401 1988-03-12

Publications (2)

Publication Number Publication Date
EP0332898A1 true EP0332898A1 (fr) 1989-09-20
EP0332898B1 EP0332898B1 (fr) 1993-06-02

Family

ID=6349654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103269A Expired - Lifetime EP0332898B1 (fr) 1988-03-12 1989-02-24 Fenêtre pour véhicule

Country Status (4)

Country Link
US (1) US5012255A (fr)
EP (1) EP0332898B1 (fr)
DE (2) DE3808401A1 (fr)
ES (1) ES2043914T3 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561272A1 (fr) * 1992-03-16 1993-09-22 Ppg Industries, Inc. Antenne transparente de vitre
EP0643437A1 (fr) * 1993-09-10 1995-03-15 Ford Motor Company Limited Antenne à fente avec un plan de masse réduite
EP0717459A1 (fr) 1994-12-08 1996-06-19 Robert Bosch Gmbh Vitrage métalisé
EP0726232A3 (fr) * 1995-02-07 1996-10-09 Saint Gobain Vitrage Vitrage automobile comportant une couche électroconductrice
EP0760537A3 (fr) * 1995-09-02 1997-12-17 FLACHGLAS Automotive GmbH Antenne de vitrage pour véhicule automobile
DE10146439C1 (de) * 2001-09-20 2002-11-28 Pilkington Automotive D Gmbh Fahrzeugantennenscheibe
WO2012054330A1 (fr) * 2010-10-22 2012-04-26 Pittsburgh Glass Works, Llc Antenne de fenêtre
WO2012054327A1 (fr) * 2010-10-22 2012-04-26 Pittsburgh Glass Works, Llc Antenne à large bande
DE102006002681B4 (de) * 2005-01-20 2020-01-02 Pilkington Group Limited Heizbare Fahrzeugverglasung

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938739A1 (de) * 1989-11-10 1991-08-08 Bosch Gmbh Robert Fahrzeugantenne
JPH082926Y2 (ja) * 1991-03-29 1996-01-29 日本板硝子株式会社 アンテナコネクタ
US5644321A (en) * 1993-01-12 1997-07-01 Benham; Glynda O. Multi-element antenna with tapered resistive loading in each element
KR0145052B1 (ko) * 1993-12-29 1998-08-01 와다 요시히로 차량용 안테나 및 그 설정방법
DE4415675C1 (de) * 1994-05-04 1995-08-31 Flachglas Ag Fahrzeug-Antennenscheibe für breitbandigen Empfang bis in den UHF-Bereich
CA2212015A1 (fr) * 1995-02-06 1996-08-15 John R. Benham Antennes de television
JPH10513329A (ja) * 1995-02-06 1998-12-15 メガウエイブ コーポレーション 窓ガラスアンテナ
US5739794A (en) * 1995-05-22 1998-04-14 General Motors Corporation Vehicle window antenna with parasitic slot transmission line
US5528314A (en) * 1995-05-22 1996-06-18 General Motors Corporation Transparent vehicle window antenna
US5648785A (en) * 1995-05-22 1997-07-15 General Motors Corporation Vehicle window with antenna connection apparatus
US5905468A (en) * 1995-08-23 1999-05-18 Asahi Glass Company Ltd. Glass antenna device for vehicles
US5812095A (en) * 1995-10-06 1998-09-22 Ford Motor Company Mounting structure for combined automotive trim accessory and antenna
US5629712A (en) * 1995-10-06 1997-05-13 Ford Motor Company Vehicular slot antenna concealed in exterior trim accessory
DE19730173A1 (de) * 1997-07-15 1999-01-21 Fuba Automotive Gmbh Kraftfahrzeug-Karosserie aus Kunststoff mit Antennen
DE19817573A1 (de) * 1998-04-20 1999-10-21 Heinz Lindenmeier Antenne für mehrere Funkdienste
DE19832228C2 (de) * 1998-07-17 2002-05-08 Saint Gobain Sekurit D Gmbh Antennenscheibe für Kraftfahrzeuge
ATE287196T1 (de) 1999-05-20 2005-01-15 Glaverbel Elektrisch beheizbare sonnenschutzbeschichtete autoverglasungsscheibe
US7019260B1 (en) * 1999-05-20 2006-03-28 Glavarbel Automotive glazing panel with solar control coating comprising a data transmission window
US6359593B1 (en) 2000-08-15 2002-03-19 Receptec Llc Non-radiating single slotline coupler
JP2002151939A (ja) * 2000-10-03 2002-05-24 Internatl Business Mach Corp <Ibm> アンテナ装置、情報処理装置および携帯電話
CN1308560C (zh) * 2001-04-03 2007-04-04 詹姆斯哈迪国际财金公司 板壁板条及其制造方法
TW535329B (en) * 2001-05-17 2003-06-01 Acer Neweb Corp Dual-band slot antenna
DE10127847A1 (de) * 2001-06-08 2002-12-19 Webasto Vehicle Sys Int Gmbh Transparente Scheibe für ein Fahrzeugdach mit wenigstens einem Dachelement oder für ein Dachmodul für ein Fahrzeugdach
US7295154B2 (en) * 2002-01-17 2007-11-13 The Ohio State University Vehicle obstacle warning radar
DE10314094A1 (de) * 2002-09-17 2004-03-25 Pilkington Automotive Deutschland Gmbh Antennenscheibe
EP1543581B1 (fr) 2002-09-17 2011-07-20 PILKINGTON Automotive Deutschland GmbH Vitre antenne
DE10245250A1 (de) * 2002-09-27 2004-04-15 Daimlerchrysler Ag Beheizbare Fensterscheibe
US6922175B2 (en) * 2002-12-04 2005-07-26 The Ohio State University Radio transmission region in metallic panel
US6860081B2 (en) * 2002-12-04 2005-03-01 The Ohio State University Sidelobe controlled radio transmission region in metallic panel
US7196657B2 (en) * 2003-01-31 2007-03-27 The Ohio State University Radar system using RF noise
JP2005012588A (ja) * 2003-06-20 2005-01-13 Nippon Sheet Glass Co Ltd 車両用ガラスアンテナ装置
JP4405954B2 (ja) * 2005-10-27 2010-01-27 株式会社デンソー 放射ノイズの回り込み抑制方法
EP2453521B1 (fr) 2009-07-09 2017-02-08 Asahi Glass Company, Limited Glace pour véhicule et antenne
US20110006050A1 (en) * 2009-07-13 2011-01-13 Joseph Patrick Nee Thermally Heated Collapsible Sun shade
GB0922191D0 (en) 2009-12-21 2010-02-03 Pilkington Group Ltd Vehicle glazing
JP2014033243A (ja) 2010-11-30 2014-02-20 Asahi Glass Co Ltd 車両用窓ガラス及びアンテナ
EP2649674B1 (fr) * 2010-12-09 2016-04-06 AGC Automotive Americas R & D, Inc. Ensemble vitre équipé d'un élément d'antenne qui recouvre une couche transparente et ouverture définie dans cette couche
JP2014045230A (ja) * 2010-12-28 2014-03-13 Asahi Glass Co Ltd アンテナ装置
WO2014008508A1 (fr) 2012-07-06 2014-01-09 The Ohio State University Conception d'antenne gnss à double bande compacte
JP6160687B2 (ja) 2013-02-21 2017-07-12 旭硝子株式会社 車両用窓ガラス及びアンテナ
JP2016105527A (ja) * 2013-03-14 2016-06-09 旭硝子株式会社 車両用窓ガラス
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
EP2980919B1 (fr) * 2013-03-27 2017-11-29 Asahi Glass Company, Limited Pare-brise et antenne
US9337525B2 (en) 2014-02-03 2016-05-10 Pittsburgh Glass Works, Llc Hidden window antenna
US10804592B2 (en) * 2017-03-29 2020-10-13 Central Glass Company, Limited Antenna and window glass
US20250372887A1 (en) * 2024-05-28 2025-12-04 GM Global Technology Operations LLC Vertically polarized low profile slot antenna on glass beside a conductor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228030A (en) * 1965-06-11 1966-01-04 Gen Dynamics Corp Shielded antenna
US3491438A (en) * 1967-01-16 1970-01-27 Triplex Safety Glass Co Method of making electrically heated window glazings
FR2024911A1 (en) * 1968-11-22 1970-09-04 Ppg Industries Inc Motor car window of tempered glass
US3577196A (en) * 1968-11-25 1971-05-04 Eugene F Pereda Rollable slot antenna
FR2073314A1 (fr) * 2013-01-22 1971-10-01 Ericsson Telefon Ab L M
DE2166231A1 (de) * 1971-02-10 1973-06-14 Arend Wolf Antenne zum nachtraeglichen befestigen an nichtleitenden flaechen
FR2332626A1 (fr) * 1975-11-20 1977-06-17 Kolbe & Co Hans Dispositif pour diminuer les parasites dans une antenne de reception
GB1540464A (en) * 1976-06-03 1979-02-14 Toyota Motor Co Ltd Demisting window for use in motor vehicles
FR2400805A1 (fr) * 1977-08-17 1979-03-16 Bsh Electronics Manchester Ltd Dispositif de separation de signaux pour fenetre chauffante utilisee comme antenne emettrice
GB1546571A (en) * 1976-07-30 1979-05-23 Antenna Specialists Uk Ltd Antenna

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007164A (en) * 1955-04-22 1961-10-31 Ross A Davis Slot antenna which is fed at two points
US2971191A (en) * 1955-07-18 1961-02-07 Ross A Davis Slot type antenna having an autotransformer coupling circuit
US3210766A (en) * 1962-02-15 1965-10-05 Ralph O Parker Slot type antenna with tuning circuit
FR2250329A5 (fr) * 1973-10-31 1975-05-30 Saint Gobain
JPS60127803A (ja) * 1983-12-15 1985-07-08 Shigeo Matsumura 極超短波帯用自動車アンテナ結合器
DE3410415A1 (de) * 1984-03-21 1985-09-26 Gerhard Prof. Dr.-Ing. 8012 Ottobrunn Flachenecker Aktive antenne in der heckscheibe eines kraftfahrzeugs

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228030A (en) * 1965-06-11 1966-01-04 Gen Dynamics Corp Shielded antenna
US3491438A (en) * 1967-01-16 1970-01-27 Triplex Safety Glass Co Method of making electrically heated window glazings
FR2024911A1 (en) * 1968-11-22 1970-09-04 Ppg Industries Inc Motor car window of tempered glass
US3577196A (en) * 1968-11-25 1971-05-04 Eugene F Pereda Rollable slot antenna
DE2166231A1 (de) * 1971-02-10 1973-06-14 Arend Wolf Antenne zum nachtraeglichen befestigen an nichtleitenden flaechen
FR2332626A1 (fr) * 1975-11-20 1977-06-17 Kolbe & Co Hans Dispositif pour diminuer les parasites dans une antenne de reception
GB1540464A (en) * 1976-06-03 1979-02-14 Toyota Motor Co Ltd Demisting window for use in motor vehicles
GB1546571A (en) * 1976-07-30 1979-05-23 Antenna Specialists Uk Ltd Antenna
FR2400805A1 (fr) * 1977-08-17 1979-03-16 Bsh Electronics Manchester Ltd Dispositif de separation de signaux pour fenetre chauffante utilisee comme antenne emettrice
FR2073314A1 (fr) * 2013-01-22 1971-10-01 Ericsson Telefon Ab L M

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561272A1 (fr) * 1992-03-16 1993-09-22 Ppg Industries, Inc. Antenne transparente de vitre
EP0643437A1 (fr) * 1993-09-10 1995-03-15 Ford Motor Company Limited Antenne à fente avec un plan de masse réduite
US5646637A (en) * 1993-09-10 1997-07-08 Ford Motor Company Slot antenna with reduced ground plane
EP0717459A1 (fr) 1994-12-08 1996-06-19 Robert Bosch Gmbh Vitrage métalisé
EP0726232A3 (fr) * 1995-02-07 1996-10-09 Saint Gobain Vitrage Vitrage automobile comportant une couche électroconductrice
EP0760537A3 (fr) * 1995-09-02 1997-12-17 FLACHGLAS Automotive GmbH Antenne de vitrage pour véhicule automobile
US5898407A (en) * 1995-09-02 1999-04-27 Flachglas Automotive Gmbh Motor vehicle with antenna window with improved radiation and reception characteristics
DE10146439C1 (de) * 2001-09-20 2002-11-28 Pilkington Automotive D Gmbh Fahrzeugantennenscheibe
US7106262B2 (en) 2001-09-20 2006-09-12 Pilkington Automotive Deutschland Gmbh Double on-glass slot antenna
DE102006002681B4 (de) * 2005-01-20 2020-01-02 Pilkington Group Limited Heizbare Fahrzeugverglasung
WO2012054330A1 (fr) * 2010-10-22 2012-04-26 Pittsburgh Glass Works, Llc Antenne de fenêtre
WO2012054327A1 (fr) * 2010-10-22 2012-04-26 Pittsburgh Glass Works, Llc Antenne à large bande

Also Published As

Publication number Publication date
EP0332898B1 (fr) 1993-06-02
DE3808401A1 (de) 1989-09-21
US5012255A (en) 1991-04-30
ES2043914T3 (es) 1994-01-01
DE58904538D1 (de) 1993-07-08

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