WO1998048298A1 - Automobile radar equipment - Google Patents

Automobile radar equipment Download PDF

Info

Publication number
WO1998048298A1
WO1998048298A1 PCT/EP1998/001917 EP9801917W WO9848298A1 WO 1998048298 A1 WO1998048298 A1 WO 1998048298A1 EP 9801917 W EP9801917 W EP 9801917W WO 9848298 A1 WO9848298 A1 WO 9848298A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna elements
arrangement according
arrangement
focusing element
designed
Prior art date
Application number
PCT/EP1998/001917
Other languages
German (de)
French (fr)
Inventor
Robert Schneider
Gerd Wanielik
Josef Wenger
Original Assignee
Daimler-Benz Aktiengesellschaft
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 Daimler-Benz Aktiengesellschaft filed Critical Daimler-Benz Aktiengesellschaft
Publication of WO1998048298A1 publication Critical patent/WO1998048298A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/062—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/032—Constructional details for solid-state radar subsystems
    • 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
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • 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
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3283—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle side-mounted antennas, e.g. bumper-mounted, door-mounted

Definitions

  • the invention relates to a motor vehicle radar arrangement.
  • the present invention is based on the object specify a motor vehicle radar arrangement that meets these requirements.
  • the invention makes use of the fact that in a motor vehicle radar the useful information that can be obtained from the vertical angular resolution is of much less importance than the horizontally resolved information.
  • the arrangement according to the invention can advantageously meet the requirements.
  • FIG. 1 shows a first embodiment in plan view
  • FIG. 2 the arrangement according to FIG. 1 in side view
  • FIG. 3 shows an arrangement on a common carrier
  • FIG. 4 shows a further embodiment with a reflector
  • a plurality of antenna elements A are arranged on a carrier T in a linear horizontal line next to one another and spaced apart from one another as desired.
  • the antenna elements are at least approximately in the focus area of a focus device arranged in the main radiation direction B in front of the antenna elements.
  • element which is designed, for example, as a dielectric lens L.
  • the focussing element shows good bundling properties in the horizontal and forms narrow, horizontally adjacent angular sections on each of the antenna elements.
  • the dielectric lens L which is designed, for example, as a dielectric lens L.
  • the lens is plano-convex in the horizontal, for example, as sketched, the flat side also being able to face away from the antenna elements in order to achieve a flat front.
  • the main beam direction B of the arrangement usually shows for a motor vehicle radar in
  • the lens in the illustration according to FIG. 2 has no bundling properties, but is designed as a flat lens body, in particular as a cylindrical lens with preferably a small extension in the direction of the cylinder axis.
  • the antenna diagram achieved with such an antenna arrangement shows a fan structure with a plurality of horizontally adjacent fan lobes corresponding to the plurality of antenna elements A of the element row.
  • the vertical diagram form is essentially only determined by the diagram form of the antenna elements themselves, the horizontal diagram form is essentially determined by the focusing element.
  • the vertical half width is preferably between 5 degrees and 45 degrees, the horizontal half width between 1 degree and 4 degrees.
  • the plurality of antenna elements can be connected via a line network to circuit devices 5 for processing and frequency conversion of high-frequency signals, the small number of antenna elements advantageously being used in the arrangement according to the invention enabled by common circuit devices for several or all antenna elements in time division multiplexing.
  • the line network is preferably designed as a branched structure, in particular as a so-called tree structure with electronically switchable connecting lines.
  • a line network N is outlined, which according to a preferred embodiment is arranged together with the antenna elements A and the circuit devices S on a common carrier module T.
  • the circuit devices S can comprise, in a manner known per se, means for frequency generation and / or frequency conversion, amplifiers, control devices for the network N, transmit / receive switches, A / D and / or D / A converters, etc.
  • the extent to which circuit components of the rail arrangement are included in the circuit device S determines the type and number of the connecting lines E leading to and from the carrier module, which in extreme cases can be reduced to supply lines and one or a few digital signal lines.
  • Known components for example diodes or transistors, can be used to switch signal lines in the line network.
  • a further advantageous embodiment provides, instead of the dielectric lens L as a focusing element, a focusing reflector which, in an advantageous simple embodiment, is designed as a reflector strip R curved in one plane, for example as a bent metal strip or bent metallized plastic strip, as shown in FIG. 4 outlined.
  • the reflector R and the carrier module T are inclined relative to the vertical and offset in height.
  • FIG. 4 also shows an embodiment with antenna elements consisting of a group AG of several radiator elements, in particular several radiator elements in the vertical direction, by means of which a stronger bundling in the vertical direction can be achieved compared to the individual diagram of a radiator element.
  • the vertical diagram form DV of the antenna arrangement then corresponds to the diagram DG of the radiator group AG.
  • the radar arrangement is preferably operated at transmission frequencies greater than 50 GHz, as a result of which the dimensions of the antenna elements and the overall aperture are kept small.
  • the invention is not limited to the examples described, but can be varied within the scope of the expert's ability.

Abstract

The invention discloses a cost-effective and simply designed automobile radar equipment system, containing the following key components: a focusing element and a support module with a row of antenna elements, a conductor network and common switching devices which can be connected in time multiplexing to individual antenna elements from the row of antenna elements. Preferably, the focusing element is designed to have a strong horizontal and a weak or even non-existent vertical focusing effect, e.g. as a cylindrical lens or as a bent strip reflector.

Description

Bes ehre ibunα-Honor ibunα-
Kraft fa rzeucr-RadaranordnunσForce radar arrangement
Die Erfindung betrifft eine Kraftfahrzeug-Radaranordnung .The invention relates to a motor vehicle radar arrangement.
Kraftfahrzeug-Radaranαrdnungen gewinnen an Bedeutung für die Erhöhung der Verkehrssicherheit durch Hindernisdetek- tion , Abstandswarnung , Straßenzustandserkennung sowohl zur Information und Unterstützung des Fahrers als auch für die automatisierte Verkehrs führung.Motor vehicle radar instructions are becoming increasingly important for increasing traffic safety through obstacle detection, distance warning, and road condition detection both for information and support for the driver and for automated traffic management.
Grundlegende Anforderungen an Kraftfahrzeug-Radaranordnungen sind einfacher robuster Aufbau, geringer Raumbedarf und niedrige Herstellungskosten .Basic requirements for motor vehicle radar arrangements are simple, robust construction, small space requirement and low manufacturing costs.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde , eine Kraftfahrzeug-Radaranordnung anzugeben, die diesen Anforderungen gerecht wird.The present invention is based on the object specify a motor vehicle radar arrangement that meets these requirements.
Die Erfindung ist im Patentanspruch 1 beschrieben. Die Uh- teranspruche enthalten vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung.The invention is described in claim 1. The claims contain advantageous refinements and developments of the invention.
Die Erfindung macht sich zunutze, daß in einem Kraftfahrzeug-Radar der aus der vertikalen Winkelauflösung entnehm- baren Nutzinformation wesentlich geringere Bedeutung zukommt als der horizontal winkelaufgelösten Information. Durch die Konzentration auf eine gute horizontale Winkelauflösung bei geringer vertikaler Auflösung oder Reduzierung der vertikalen Winkelauflösung kann die erfin- dungsgemäße Anordnung die gestellten Anforderungen auf vorteilhafte Weise erfüllen.The invention makes use of the fact that in a motor vehicle radar the useful information that can be obtained from the vertical angular resolution is of much less importance than the horizontally resolved information. By concentrating on a good horizontal angular resolution with low vertical resolution or reducing the vertical angular resolution, the arrangement according to the invention can advantageously meet the requirements.
Die Erfindung ist nachfolgend anhand von Beispielen unter Bezugnahme auf die Abbildungen noch eingehend veranschau- licht. Dabei zeigtThe invention is illustrated in more detail below by means of examples with reference to the figures. It shows
FIG. 1 eine erste Ausführungsform in DraufsichtFIG. 1 shows a first embodiment in plan view
FIG. 2 die Anordnung nach FIG. 1 in SeitenansichtFIG. 2 the arrangement according to FIG. 1 in side view
FIG. 3 eine Anordnung auf einem gemeinsamen Träger FIG. 4 eine weitere Ausführungsform mit ReflektorFIG. 3 shows an arrangement on a common carrier FIG. 4 shows a further embodiment with a reflector
Bei der in FIG. 1 skizzierten Ausführungsform sind auf einem Träger T mehrere Antennenelemente A in einer linearen horizontalen Zeile nebeneinander und voneinander beliebig beabstandet angeordnet. Die Antennenelemente liegen zumindest ungefähr in der Fokusfläche eines in Haup strahlungs- richtung B vor den Antennenelementen angeordneten fokus- sierenden Elements, das beispielsweise als dielektrische Linse L ausgeführt ist. Das fokussierende Element zeigt in der Horizontalen gute Bündelungseigenschaften und bildet schmale, horizontal benachbarte Winkelabschnitte auf je- weils eines der Antennenelemente ab. Die dielektrischeIn the case of FIG. 1 outlined embodiment, a plurality of antenna elements A are arranged on a carrier T in a linear horizontal line next to one another and spaced apart from one another as desired. The antenna elements are at least approximately in the focus area of a focus device arranged in the main radiation direction B in front of the antenna elements. element, which is designed, for example, as a dielectric lens L. The focussing element shows good bundling properties in the horizontal and forms narrow, horizontally adjacent angular sections on each of the antenna elements. The dielectric
Linse ist in der Horizontalen beispielsweise wie skizziert plankonvex geformt, wobei zur Erzielung einer ebenen Vorderfront die plane Seite auch den Antennenelementen abgewandt sein kann. Die Hauptstrahlrichtung B der Anordnung zeigt für ein Kraftfahrzeug-Radar im Regelfall inThe lens is plano-convex in the horizontal, for example, as sketched, the flat side also being able to face away from the antenna elements in order to achieve a flat front. The main beam direction B of the arrangement usually shows for a motor vehicle radar in
Fahrtrichtung. In der Vertikalen zeigt die Linse in der Darstellung nach FIG. 2 keine Bündelungseigenschaften, sondern ist als flacher Linsenkörper, insbesondere als Zylinderlinse mit vorzugsweise geringer Ausdehnung in Rich- tung der Zylinderachse ausgeführt.Direction of travel. In the vertical, the lens in the illustration according to FIG. 2 has no bundling properties, but is designed as a flat lens body, in particular as a cylindrical lens with preferably a small extension in the direction of the cylinder axis.
Das mit einer solchen Antennenanordnung erzielte Antennendiagramm zeigt eine Fächerstruktur mit einer Mehrzahl von horizontal benachbarten Fächerkeulen entsprechend der Mehrzahl der Antennenelemente A der Elementzeile. Die vertikale Diagrammform ist im wesentlichen nur durch die Diagrammform der Antennenelemente selbst, die horizontale Diagrammform ist im wesentlichen durch das fokussierende Element bestimmt. Dabei liegt die vertikale Halbwerts- breite vorzugsweise zwischen 5 Grad und 45 Grad, die horizontale Halbwertsbreite zwischen 1 Grad und 4 Grad.The antenna diagram achieved with such an antenna arrangement shows a fan structure with a plurality of horizontally adjacent fan lobes corresponding to the plurality of antenna elements A of the element row. The vertical diagram form is essentially only determined by the diagram form of the antenna elements themselves, the horizontal diagram form is essentially determined by the focusing element. The vertical half width is preferably between 5 degrees and 45 degrees, the horizontal half width between 1 degree and 4 degrees.
Die mehreren Antennenelemente sind über ein Leitungsnetz- werk mit Schaltungseinrichtungen 5 zur Verarbeitung und Frequenzumsetzung von Hochfrequenzsignalen verbindbar, wobei die bei der erfindungsgemäßen Anordnung geringe Anzahl von Antennenelementen vorteilhafterweise die Verwendung von gemeinsamen Schaltungseinrichtungen für mehrere oder alle Antennenelemente im Zeitmultiplex ermöglicht. Das Leitungsnetz ist vorzugsweise als verzweigte Struktur, insbesondere als sogenannte Baumstruktur mit elektronisch schaltbaren Verbindungsleitungen ausgeführt. In FIG. 3 ist ein solches Leitungsnetzwerk N skizziert, das gemäß einer bevorzugten Ausführungsform zusammen mit den Antennenelementen A und den Schaltungseinrichtungen S auf einem gemeinsamen Trägermodul T angeordnet ist. Die Schaltungsein- richtungen S können in an sich bekannter Weise Mittel zur Frequenzerzeugung und/oder Frequenzumsetzung, Verstärker, Steuereinrichtungen für das Netzwerk N, Sende-E pfangs-Umschalter, A/D- und/oder D/A-Wandler usw. umfassen. Der Umfang der Einbeziehung von Schaltungskomponenten der Ra- daranordnung in die Schaltungseinrichtung S bestimmt Art und Anzahl der zu und von dem Trägermodul führenden Anschlußleitungen E, die im Extremfall auf Versorgungsleitungen und eine oder wenige digitale Ξignalleitungen reduziert sein können.The plurality of antenna elements can be connected via a line network to circuit devices 5 for processing and frequency conversion of high-frequency signals, the small number of antenna elements advantageously being used in the arrangement according to the invention enabled by common circuit devices for several or all antenna elements in time division multiplexing. The line network is preferably designed as a branched structure, in particular as a so-called tree structure with electronically switchable connecting lines. In FIG. 3, such a line network N is outlined, which according to a preferred embodiment is arranged together with the antenna elements A and the circuit devices S on a common carrier module T. The circuit devices S can comprise, in a manner known per se, means for frequency generation and / or frequency conversion, amplifiers, control devices for the network N, transmit / receive switches, A / D and / or D / A converters, etc. The extent to which circuit components of the rail arrangement are included in the circuit device S determines the type and number of the connecting lines E leading to and from the carrier module, which in extreme cases can be reduced to supply lines and one or a few digital signal lines.
Zur Schaltung von Signalleitungen in dem Leitungsnetzwerk können bekannte Bauteile, beispielsweise Dioden oder Transistoren eingesetzt werden.Known components, for example diodes or transistors, can be used to switch signal lines in the line network.
Eine weitere vorteilhafte Ausführungsform sieht anstelle der dielektrischen Linse L als fokussierendes Element einen bündelnden Reflektor vor, der in einer vorteilhaften einfachen Ausführung als in einer Ebene gewölbter Reflek- torstreifen R, beispielsweise als gebogener Metallstreifen oder gebogener metallisierter Kunststoffstreifen, ausgebildet ist, wie in FIG. 4 skizziert. Zur Vermeidung von Abschattungseffekten in Hauptstrahl- richtung B durch das Trägermodul sind Reflektor R und Trägermodul T gegen die Vertikale geneigt und höhenversetzt angeordnet.A further advantageous embodiment provides, instead of the dielectric lens L as a focusing element, a focusing reflector which, in an advantageous simple embodiment, is designed as a reflector strip R curved in one plane, for example as a bent metal strip or bent metallized plastic strip, as shown in FIG. 4 outlined. To avoid shadowing effects in the main beam direction B by the carrier module, the reflector R and the carrier module T are inclined relative to the vertical and offset in height.
In FIG. 4 ist auch eine Ausführungsform mit aus jeweils einer Gruppe AG von mehreren Strahlerelementen, insbesondere mehrerer Strahlerelemente in vertikaler Richtung bestehenden Antennenelementen skizziert, mittels der eine gegenüber dem Einzeldiagramm eines Strahlerelements stärkere Bündelung in vertikale Richtung erreicht werden kann. Die vertikale Diagrammform DV der Antennenanordnung entspricht dann dem Diagramm DG der Strahlergruppe AG.In FIG. 4 also shows an embodiment with antenna elements consisting of a group AG of several radiator elements, in particular several radiator elements in the vertical direction, by means of which a stronger bundling in the vertical direction can be achieved compared to the individual diagram of a radiator element. The vertical diagram form DV of the antenna arrangement then corresponds to the diagram DG of the radiator group AG.
Die Radaranordnung wird vorzugsweise bei Sendefrequenzen größer 50GHz betrieben, wodurch die Abmessungen der Antennenelemente und die Gesamtapertur klein gehalten werden.The radar arrangement is preferably operated at transmission frequencies greater than 50 GHz, as a result of which the dimensions of the antenna elements and the overall aperture are kept small.
Die Erfindung ist nicht auf die beschriebenen Beispiele beschränkt, sondern im Rahmen fachmännischen Könnens variierbar. The invention is not limited to the examples described, but can be varied within the scope of the expert's ability.

Claims

Patentansprüche claims
1. Kraftfahrzeug-Radaranordnung mit einer Antennenanordnung mit einem in Fahrtrichtung weisenden Antennendiagramm, die ein strahlungsfokussierendes Element und in dessen Fokusflache mehrere Antennenelemente enthält, und mit integrierten Schaltungseinrichtungen zur Verarbeitung und Frequenzumsetzung von hochfrequenten Signalen, gekennzeichnet durch eine Anordnung der Antennenelemente in der Fokusfläche mit in vertikaler Richtung geringer Ausdehnung gegenüber der Ausdehnung in horizontaler Rich- tung, durch allen Antennenelementen gemeinsame Schaltungseinrichtungen, durch ein Leitungsnetzwerk mit schaltbaren Verbindungslei- tungen zum Anschluß der Antennenelemente im Zeitmultiplex an die gemeinsamen Schaltungseinrichtungen, durch ein fokussierendes Element mit starker Bündelung in der Horizontalen und geringer oder fehlender Bündelung in der Vertikalen.1.Motor vehicle radar arrangement with an antenna arrangement with an antenna diagram pointing in the direction of travel, which contains a radiation-focusing element and in the focus area of which a plurality of antenna elements, and with integrated circuit devices for processing and frequency conversion of high-frequency signals, characterized by an arrangement of the antenna elements in the focus area with in vertical direction of slight extent compared to the extent in the horizontal direction, circuit devices common to all antenna elements, through a line network with switchable connecting lines for connecting the antenna elements to the common circuit devices in time division multiplex, due to a focusing element with strong bundling in the horizontal and little or no bundling in the vertical.
2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Antennenelemente eine horizontale Elementzeile bilden.2. Arrangement according to claim 1, characterized in that the antenna elements form a horizontal line of elements.
3. Anordnung nach Anspruch 1 oder Anspruch 2 , dadurch gekennzeichnet, daß die Antennenelemente aus einer Gruppe von Strahlerelementen bestehen.3. Arrangement according to claim 1 or claim 2, characterized in that the antenna elements consist of a group of radiating elements.
4. Anordnung nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, daß das fokussierende Element als flache dielektrische Linse ausgeführt ist.4. Arrangement according to one of claims 1 to 3, characterized in that the focusing element is designed as a flat dielectric lens.
5. Anordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das fokussierende Element als gebogener Reflektorstreifen ausgeführt ist.5. Arrangement according to one of claims 1 to 3, characterized in that the focusing element is designed as a curved reflector strip.
6. Anordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Leitungsnetzwerk in Baumstruktur ausgeführt ist.6. Arrangement according to one of claims 1 to 5, characterized in that the line network is designed in a tree structure.
7. Anordnung nach einem der Ansprüche 1 bis 6 , dadurch gekennzeichnet, daß die Antennenelemente, das Leitungs- netzwerk und die Schaltungseinrichtungen auf einem gemeinsamen Träger angeordnet sind. 7. Arrangement according to one of claims 1 to 6, characterized in that the antenna elements, the line network and the circuit devices are arranged on a common carrier.
PCT/EP1998/001917 1997-04-17 1998-04-02 Automobile radar equipment WO1998048298A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19715998.2 1997-04-17
DE19715998A DE19715998A1 (en) 1997-04-17 1997-04-17 Motor vehicle radar arrangement

Publications (1)

Publication Number Publication Date
WO1998048298A1 true WO1998048298A1 (en) 1998-10-29

Family

ID=7826752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/001917 WO1998048298A1 (en) 1997-04-17 1998-04-02 Automobile radar equipment

Country Status (2)

Country Link
DE (1) DE19715998A1 (en)
WO (1) WO1998048298A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007058236A1 (en) * 2007-12-04 2009-06-10 Robert Bosch Gmbh Bistatic array antenna and method
DE102012104090A1 (en) * 2012-05-10 2013-11-14 Endress + Hauser Gmbh + Co. Kg Horn antenna element for antenna array for radar measuring device, has upper cover that is formed by base plate of another horn antenna element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575814A1 (en) * 1992-06-09 1993-12-29 CENTRO RICERCHE FIAT Società Consortile per Azioni Microwave distance sensor for parking vehicles
DE4412770A1 (en) * 1994-04-13 1995-10-19 Siemens Ag Microwave lens aerial for car distance warning radar
EP0733913A2 (en) * 1995-03-23 1996-09-25 Honda Giken Kogyo Kabushiki Kaisha Radar module and antenna device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512901A (en) * 1991-09-30 1996-04-30 Trw Inc. Built-in radiation structure for a millimeter wave radar sensor
US5264859A (en) * 1991-11-05 1993-11-23 Hughes Aircraft Company Electronically scanned antenna for collision avoidance radar
JPH05251928A (en) * 1992-03-05 1993-09-28 Honda Motor Co Ltd Antenna system
DE4412769A1 (en) * 1994-04-13 1995-10-19 Siemens Ag Microwave reflector aerial for car distance warning radar
US5486832A (en) * 1994-07-01 1996-01-23 Hughes Missile Systems Company RF sensor and radar for automotive speed and collision avoidance applications
US5579021A (en) * 1995-03-17 1996-11-26 Hughes Aircraft Company Scanned antenna system
DE19530065A1 (en) * 1995-07-01 1997-01-09 Bosch Gmbh Robert Monostatic FMCW radar sensor
JPH09191213A (en) * 1995-11-07 1997-07-22 Denso Corp Opening surface antenna

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575814A1 (en) * 1992-06-09 1993-12-29 CENTRO RICERCHE FIAT Società Consortile per Azioni Microwave distance sensor for parking vehicles
DE4412770A1 (en) * 1994-04-13 1995-10-19 Siemens Ag Microwave lens aerial for car distance warning radar
EP0733913A2 (en) * 1995-03-23 1996-09-25 Honda Giken Kogyo Kabushiki Kaisha Radar module and antenna device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZELUBOWSKI S A: "LOW COST ANTENNA ALTERNATIVES FOR AUTOMOTIVE RADARS", MICROWAVE JOURNAL, vol. 37, no. 7, July 1994 (1994-07-01), pages 54, 56/57, 59 - 61, 63, XP000468714 *

Also Published As

Publication number Publication date
DE19715998A1 (en) 1998-10-22

Similar Documents

Publication Publication Date Title
DE112005000436B4 (en) Variable misalignment antenna with at least one phase shift element
EP0514380B1 (en) Antenna combination
DE102008037836A1 (en) Antenna and the same mobile device used
DE102007061738A1 (en) Antenna, in particular for radar signals, and method and use
DE102009035594A1 (en) Cable connector adapter with variable direction
DE2659638B1 (en) Radio system for connecting stationary subscriber stations to a communications network
EP1366540B1 (en) Diversity-antenna system for moving vehicles
WO2003098735A1 (en) Roof for motor vehicles
WO1998048298A1 (en) Automobile radar equipment
EP0935825B1 (en) Radar sensor for a vehicle
EP1327284B1 (en) Bumper-aerial assembly
EP0325946A1 (en) Antenna system for radio reception in motor vehicles
DE3904676A1 (en) VEHICLE ANTENNA IN THE FORM OF A SLOT ANTENNA
DE4125898A1 (en) VEHICLE ANTENNA
DE2813916A1 (en) DIRECTIONAL ANTENNA ARRANGEMENT WITH ELECTRONICALLY CONTROLLED BEAM SWIVEL
EP2225582B1 (en) Monostatic multibeam radar sensor, and method therefor
DE10331213A1 (en) Glass antenna for the LMK and diversified FM reception of mobile vehicles
DE4338836A1 (en) Arrangement for accommodating several transmitting and / or receiving modules
BE1015398A6 (en) Connection system FOR UNDERGROUND cabling.
WO1998048299A1 (en) Motor vehicle radar system
EP0654877A2 (en) Switchgear cabinet with ventilation slots
EP0780969B1 (en) Frequency mixer for a Doppler radar module
DE102018207451A1 (en) Manufacturing system for assembling radar sensors for a motor vehicle, radar sensor, motor vehicle and method for producing a radar sensor for a motor vehicle
DE3219365C1 (en) End-fire array directional antenna
DE2042588A1 (en) Electrically scanned trailing antenna feed device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998544914

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA