EP1810371B1 - Antenna array - Google Patents
Antenna array Download PDFInfo
- Publication number
- EP1810371B1 EP1810371B1 EP05784691A EP05784691A EP1810371B1 EP 1810371 B1 EP1810371 B1 EP 1810371B1 EP 05784691 A EP05784691 A EP 05784691A EP 05784691 A EP05784691 A EP 05784691A EP 1810371 B1 EP1810371 B1 EP 1810371B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- elements
- radome
- lens
- antenna elements
- 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 - Fee Related
Links
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/40—Radiating elements coated with or embedded in protective material
- H01Q1/405—Radome integrated radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
Abstract
Description
Die Erfindung geht aus von einer Antennenanordnung mit Antennenelementen auf einem Träger und einem Radom in einem definierten Abstand zum Träger.The invention is based on an antenna arrangement with antenna elements on a carrier and a radome at a defined distance from the carrier.
Aus der
Aus der
Aus der
Aus der
Aus der
Mit den Maßnahmen des Anspruchs 1, d.h. es ist mindestens ein Linsenelement zur Strahlformung und/oder Beeinflussung des Gewinns der Antennenanordnung vorgesehen, welches in das Radom integriert ist oder am Radom befestigt ist, ist es möglich zusätzlich zur Strahlformung durch das eigentliche Antennenarray gezielt eine Strahlformung bezüglich einzelner Antennenelemente oder Gruppen von Antennenelementen zu erreichen. Damit können Nebenkeulen gezielt unterdrückt werden, ohne am eigentlichen Antennenarray etwas zu verändern.With the measures of claim 1, ie at least one lens element for beam shaping and / or influencing the gain of the antenna arrangement is provided, which is integrated into the radome or attached to the radome, it is possible in addition to the beam shaping by the actual antenna array targeted beam forming with respect to individual antenna elements or groups of antenna elements. Thus side lobes can be selectively suppressed, without changing anything on the actual antenna array.
Dies ist wichtig um unerwünschte Störstrahlung in einem vorgegebenen Frequenzbereich wirksam zu unterdrücken. Mit den erfindungsgemäßen Maßnahmen ist es möglich eine geringe Baugröße für einen Radarsensor zu erzielen mit Einhaltung vorgegebener Frequenz- und/oder Störstrahlungstoleranzen.This is important to effectively suppress unwanted spurious radiation in a given frequency range. With the measures according to the invention it is possible to achieve a small size for a radar sensor with compliance with predetermined frequency and / or Störstrahlungstoleranzen.
Die Erfindung bietet die Möglichkeit, den Gewinn einer Empfangsantenne und damit die Empfindlichkeit eines Radarsensor zu erhöhen, sodass die Sendeleistung nicht erhöht werden muss, um eine höhere Reichweite zu erzielen. Eine Erhöhung der Sendeleistung kommt meist sowieso nicht in Frage, da durch die Breitbandigkeit eines Radarsystems, z.B: 4GHz andere Funkdienste gestört werden würden und damit eine Zulassung des Radarsystems scheitern würde.The invention offers the possibility to increase the gain of a receiving antenna and thus the sensitivity of a radar sensor, so that the transmission power does not have to be increased in order to achieve a higher range. An increase in the transmission power is usually out of the question anyway, as would be disturbed by the broadband of a radar system, for example: 4GHz other radio services and thus a license of the radar system would fail.
Mit den Linsenelementen kann sowohl auf der Sendeseite als auch auf der Empfangsseite die durch das Antennenarray vorgegebene Strahlformung gezielt verändert werden, z.B. Einengung oder Erweiterung des Detektionsfeldes.With the lens elements, both on the transmitting side and on the receiving side, the beam shaping predetermined by the antenna array can be selectively changed, e.g. Narrowing or expanding the detection field.
Für die Anordnung der Linsenelemente wird erfindungsgemäß ein meist sowieso insbesondere bei Kraftfahrzeuganwendungen vorgesehenes Radom verwendet, an dem die Linsenelemente befestigt werden oder in das sie direkt integriert werden.For the arrangement of the lens elements, a radome usually provided anyway in particular in motor vehicle applications is used according to the invention, to which the lens elements are fastened or into which they are directly integrated.
Die erfindungsgemäße Lösung eignet sich vorteilhaft für Antennenarrays mit suberregten Elementen, d.h. es ist mindestens ein Antennenelement entfernt vom Träger der Antennenelemente vorgesehen, welches durch mindestens eines der Antennenelemente auf dem Träger erregt wird. Diesem suberregten Antennenelement kann gezielt ein Linsenelement zugeordnet werden, das auch Toleranzen und ungewollte Störungen dieses Elements beeinflussen bzw. kompensieren kann.The solution according to the invention is advantageously suitable for antenna arrays with parasitic elements, i. at least one antenna element is provided remote from the carrier of the antenna elements, which is excited by at least one of the antenna elements on the carrier. This subergereten antenna element can be specifically assigned a lens element, which can also influence tolerances and unwanted disturbances of this element or compensate.
Sowohl das oder die suberregte/n Element/e kann/können am Radom befestigt werden oder in dieses integriert werden.Both the filtered element (s) may be attached to or integrated with the radome.
Anhand der Zeichnungen werden Ausführungsbeispiele der Erfindung erläutert. Es zeigen
- Figur 1
- eine Antennenanordnung mit einem suberregten Antennenelement mit zugehö- rigem Linsenelement in/am Radom,
Figur 2- eine Anordnung gemäß
Figur 1 mit einer Gruppe suberregter Antennenelemente mit einem gemeinsamen Linsenelement in/am Radom, Figur 3- eine Antennenanordnung mit mehreren suberregten Antennenelementen mit Linsenelementen über jedem suberregten Antennenelement.
- FIG. 1
- an antenna arrangement with a superimposed antenna element with associated lens element in / at the radome,
- FIG. 2
- an arrangement according to
FIG. 1 with a group of swept-up antenna elements with a common lens element in / at the radome, - FIG. 3
- an antenna arrangement with a plurality of superposed antenna elements with lens elements over each swept antenna element.
Die Linsenelemente können in das Radom mit integriert werden, z.B.: Einspritzen in ein PBT-Radom, und sind deshalb kostengünstig und toleranzarm.The lens elements can be integrated into the radome, for example, injection into a PBT radome, and are therefore inexpensive and low in tolerance.
Ein weiterer Vorteil der Linsenelemente besteht darin, dass die Nebenkeulen der Empfangs- oder Sendeantennen verringert werden können und so unter anderem die Detektionssicherheit verbessert werden kann.Another advantage of the lens elements is that the side lobes of the receiving or transmitting antennas can be reduced and so among other things the detection security can be improved.
Gegenüber der Verwendung von großflächigen Arrays hat die Ausführung mit Linsenelementen den Vorteil, dass weniger Platz auf dem HF-Bord für die Antenne benötigt wird und auch die elektrischen Verluste durch die vom Array benötigten Speisenetzwerke entfallen. Dies stellt ebenfalls einen Kostenvorteil dar.Compared to the use of large-area arrays, the lens-type design has the advantage of requiring less space on the RF board for the antenna and eliminating the electrical losses associated with the feed networks required by the array. This also represents a cost advantage.
Mit der erfindungsgemäßen Antennenanordnung ist eine Bündelung in Elevation und/oder Azimutrichtung möglich. Das Material von Radom und Linsenelement/en müssen nicht identisch sein.With the antenna arrangement according to the invention, bundling in elevation and / or azimuth direction is possible. The material of radome and lens element (s) need not be identical.
Bei der Ausführungsvariante gemäß
Bei der Ausführungsvariante nach
Die Linsenelementformen können beliebig gewählt werden, wie z.B. plankonvex oder bikonvex.The lens element shapes can be chosen arbitrarily, such as plano-convex or biconvex.
Linsenform, Anordnung und Aufbau für zugeordnete Antennenelemente können insbesondere für Empfangs- und Sendepfad unterschiedlich sein. Das Radom 3 ist in den Ausführungsbeispielen als Planfläche dargestellt. Es kann selbstverständlich beliebig gewählte Formen aufweisen, je nach Ausgestaltung des Radarsensors oder den Einbaugegebenheiten am Kraftfahrzeug (Anpassung an Fahrzeugaußenkonturen).Lens shape, arrangement and structure for associated antenna elements may be different in particular for receiving and transmitting path. The
Die erfindungsgemäße Antennenanordnung eignet sich vorteilhaft zur Erhöhung der Reichweite eines Kraftfahrzeugradarsystems ohne Erhöhung der Sendeleistung bei gegebener Zahl von Antennenelementen und Arraydesign, wie z.B. vorgegebene Arrayfläche.The antenna arrangement according to the invention is advantageously suitable for increasing the range of a motor vehicle radar system without increasing the transmission power for a given number of antenna elements and array design, such as e.g. given array area.
Claims (7)
- Antenna arrangement having antenna elements on a mount (2) and having a radome (3) at a defined distance from the mount (2), wherein at least one lens element (4, 41) is provided for beamforming and/or for influencing the gain of the antenna arrangement, and is integrated in the radome (3) or is attached to the radome (3), wherein at least one antenna element (11) is provided at a distance from the mount (2) and is excited by at least one antenna element (1) on the mount (2)
characterized in that at least one of the antenna elements (11) which are arranged remotely from the mount (2) is attached to the radome (3), or is integrated in the radome (3). - Antenna arrangement according to Claim 1, characterized in that the lens elements (4, 41) are arranged on or in the radome (3) above individual antenna elements (1, 11) or groups of antenna elements in an antenna array.
- Antenna arrangement according to Claim 1, characterized in that at least one of the antenna elements (11) which are arranged remotely from the mount (2) is embedded in a medium, for example foam with a low dielectric constant.
- Antenna arrangement according to one of Claims 1 to 3, characterized in that the antenna elements (1, 11) are in the form of patch and/or slot antenna elements.
- Antenna arrangement according to one of Claims 1 to 4, characterized in that the lens elements (4, 41) are convex, in particular planar-convex or bi-convex.
- Antenna arrangement according to one of Claims 1 to 5, characterized in that a common lens element (41) is provided for a group of antenna elements (1, 11), for example a column or a row of an antenna array.
- Antenna arrangement according to one of Claims 1 to 6, characterized in that the lens shapes, arrangement and configuration for associated antenna elements (1, 11) are different, in particular for antenna elements in the reception path and transmission path.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004053419A DE102004053419A1 (en) | 2004-11-05 | 2004-11-05 | antenna array |
PCT/EP2005/054463 WO2006048352A2 (en) | 2004-11-05 | 2005-09-08 | Antenna array including lens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1810371A2 EP1810371A2 (en) | 2007-07-25 |
EP1810371B1 true EP1810371B1 (en) | 2011-03-02 |
Family
ID=36217142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05784691A Expired - Fee Related EP1810371B1 (en) | 2004-11-05 | 2005-09-08 | Antenna array |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080278393A1 (en) |
EP (1) | EP1810371B1 (en) |
DE (2) | DE102004053419A1 (en) |
WO (1) | WO2006048352A2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005035814A1 (en) * | 2005-07-30 | 2007-02-01 | Hella Kgaa Hueck & Co. | Manufacture of radome for radar system of vehicle using dielectric lens |
DE102007036262A1 (en) | 2007-08-02 | 2009-02-05 | Robert Bosch Gmbh | Radar sensor for motor vehicles |
PL218547B1 (en) * | 2007-11-14 | 2014-12-31 | Fert Przemysław Elboxrf | Micro-band sector antenna and the manner of increasing the width of a beam of such antenna |
DE102007055185A1 (en) * | 2007-11-19 | 2009-05-20 | Robert Bosch Gmbh | Method for exchanging radar signals |
DE102007058236A1 (en) | 2007-12-04 | 2009-06-10 | Robert Bosch Gmbh | Bistatic array antenna and method |
DE102009055344A1 (en) | 2009-12-29 | 2011-06-30 | Robert Bosch GmbH, 70469 | antenna |
AU2011214118B2 (en) * | 2010-02-15 | 2014-12-11 | Bae Systems Plc | Antenna system |
DE102010034073A1 (en) | 2010-08-12 | 2012-02-16 | Conti Temic Microelectronic Gmbh | Device for mounting a sensor assembly, in particular a radar sensor |
US9413079B2 (en) * | 2013-03-13 | 2016-08-09 | Intel Corporation | Single-package phased array module with interleaved sub-arrays |
DE102015202801A1 (en) * | 2015-02-17 | 2016-08-18 | Robert Bosch Gmbh | Antenna arrangement and method for producing an antenna arrangement |
JP6683539B2 (en) * | 2016-05-25 | 2020-04-22 | 日立オートモティブシステムズ株式会社 | Antenna, sensor and in-vehicle system |
US20190207303A1 (en) * | 2016-07-01 | 2019-07-04 | Cambridge Communication Systems Limited | An antenna for a communications system |
DE102021124011A1 (en) | 2021-09-16 | 2023-03-16 | Neura Robotics GmbH | Radar system and method for determining an object in space |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936835A (en) * | 1974-03-26 | 1976-02-03 | Harris-Intertype Corporation | Directive disk feed system |
GB2184605A (en) * | 1985-12-24 | 1987-06-24 | Plessey Co Plc | Microwave antenna structure |
JP3786497B2 (en) * | 1997-06-13 | 2006-06-14 | 富士通株式会社 | Semiconductor module with built-in antenna element |
DE19859002A1 (en) * | 1998-12-21 | 2000-06-29 | Bosch Gmbh Robert | Arrangement for positioning elements for transmitting or receiving electromagnetic emissions for radar system of motor vehicle |
US6496146B1 (en) * | 1999-08-18 | 2002-12-17 | Hughes Electronics Corporation | Modular mobile terminal for satellite communication |
DE10205379A1 (en) * | 2002-02-09 | 2003-08-21 | Bosch Gmbh Robert | Device for transmitting and receiving electromagnetic radiation |
DE10237790A1 (en) * | 2002-08-17 | 2004-02-26 | Robert Bosch Gmbh | System for detecting and displaying objects around vehicle, comprises transmitter and receiver for radiation in Giga region consisting of antenna enclosed in radome forming lens which concentrates and directs beam |
AU2003265569A1 (en) * | 2002-08-20 | 2004-03-11 | Aerosat Corporation | Communication system with broadband antenna |
JP3858873B2 (en) * | 2002-12-02 | 2006-12-20 | 株式会社村田製作所 | Antenna device, radio device and radar |
US6897819B2 (en) * | 2003-09-23 | 2005-05-24 | Delphi Technologies, Inc. | Apparatus for shaping the radiation pattern of a planar antenna near-field radar system |
US7193573B2 (en) * | 2004-07-02 | 2007-03-20 | Pacific Microwave Research, Inc. | Wearable conformal antenna assembly |
-
2004
- 2004-11-05 DE DE102004053419A patent/DE102004053419A1/en not_active Withdrawn
-
2005
- 2005-09-08 US US11/666,845 patent/US20080278393A1/en not_active Abandoned
- 2005-09-08 DE DE502005011050T patent/DE502005011050D1/en active Active
- 2005-09-08 EP EP05784691A patent/EP1810371B1/en not_active Expired - Fee Related
- 2005-09-08 WO PCT/EP2005/054463 patent/WO2006048352A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP1810371A2 (en) | 2007-07-25 |
WO2006048352A3 (en) | 2006-11-09 |
WO2006048352A2 (en) | 2006-05-11 |
DE502005011050D1 (en) | 2011-04-14 |
US20080278393A1 (en) | 2008-11-13 |
DE102004053419A1 (en) | 2006-05-11 |
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