EP2617100A1 - Planare gruppenantenne mit in mehreren ebenen angeordneten antennenelementen - Google Patents
Planare gruppenantenne mit in mehreren ebenen angeordneten antennenelementenInfo
- Publication number
- EP2617100A1 EP2617100A1 EP11743222.9A EP11743222A EP2617100A1 EP 2617100 A1 EP2617100 A1 EP 2617100A1 EP 11743222 A EP11743222 A EP 11743222A EP 2617100 A1 EP2617100 A1 EP 2617100A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna elements
- antenna
- base
- circuit board
- additional
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
-
- 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
- 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
- H01Q19/005—Patch antenna using one or more coplanar parasitic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
-
- 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
- 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
- G01S2013/9321—Velocity regulation, e.g. cruise control
-
- 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
- G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
- G01S7/028—Miniaturisation, e.g. surface mounted device [SMD] packaging or housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
- H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
Definitions
- Planar array antenna with multi-level antenna elements Planar array antenna with multi-level antenna elements
- the invention relates to a planar array antenna for radar sensors, with a plurality of arranged in a common plane on a printed circuit board base antenna elements and with additional antenna elements, which are arranged in an offset plane respectively above one of the base antenna elements.
- the invention relates to an array antenna for radar sensors used in motor vehicles in conjunction with driver assistance systems, for example for locating vehicles ahead in an automatic adaptive cruise control (ACC) system.
- ACC automatic adaptive cruise control
- These radar sensors typically operate at a frequency of 24 GHz or 77 GHz.
- Planar antennas in microstrip technology have the advantage in these applications that they are relatively inexpensive to produce and allow a flat design and that no transitions between different line systems or types of lines are required.
- the base antenna elements like the other circuit components, can be easily formed by corresponding microstrip conductors on a printed circuit board.
- the desired directional characteristic of the antenna is achieved in that the microwave power, which is supplied via a feed line to the individual base antenna elements, is divided by means of power transformers on the antenna elements so that one receives a main lobe by interference and side lobes are largely suppressed.
- the base antenna elements should be designed so that within a certain bandwidth, a good impedance matching is achieved and reflections of the supplied microwave power can be avoided. The bandwidth depends on the thickness of the PCB.
- each base antenna element is assigned an additional antenna element which is arranged parallel to the associated base antenna element. In this case, the additional antenna elements must be correctly aligned relative to the base antenna elements.
- the base antenna elements on the one hand and the additional antenna elements on the other hand arranged on two congruent circuit boards, which are then layered congruently one above the other.
- the production of such a group antenna is relatively expensive.
- Another disadvantage is that no additional RF circuit components of the radar sensor can be accommodated on the circuit board carrying the base antenna elements.
- the object of the invention is to provide a group antenna of the type mentioned, which can be produced more easily.
- each additional antenna element is arranged individually on an associated carrier and the circuit board is equipped with the individual carriers.
- the carriers each receiving a single additional antenna element, can be inexpensively manufactured in large quantities.
- common production technologies such as SMD technology (surface mounting) can then be used, which are common in the assembly of printed circuit boards with electronic components.
- SMD technology surface mounting
- the carrier occupy only a small proportion of the surface of the circuit board with the additional antenna elements, there is also the advantageous possibility to equip the circuit board with other circuit components, so that a compact constructed radar sensor can be formed.
- the invention makes it possible to flexibly vary the scheme of the assembly of the printed circuit board with additional antenna elements.
- the base antenna elements may be microstrip antennas or, optionally, other planar antenna structures such as slot radiators.
- FIG. 1 is a plan view of a group antenna according to an embodiment of the invention.
- Figure 2 is a section along the line II-II in Fig. 1.
- FIG. 3 is a plan view of a group antenna according to an embodiment of the invention.
- Fig. 4 is a section along the line IV-IV in Fig. 3rd
- the group antenna shown in Figure 1 is formed for example in microstrip technology on a printed circuit board 10 and has four arranged in a row (or column) square base antenna elements 12, 14 which are each connected via a supply line 16 to a common feed line 18, about which they are supplied with microwave power.
- Each feed line 16 is associated with a transformer 20 which is arranged in the feed line 18 and determines the distribution of the microwave power to the various base antenna elements 12, 14.
- a further component 22 of a high-frequency circuit is also arranged.
- Each of the two central base antenna elements 14 is associated with an additional antenna element 24, which provides by resonance coupling with the associated base antenna element for an increase in the bandwidth within which the antenna elements 12, 14 are adjusted reflection.
- Each additional antenna element 24 has a plan view which is similar to the relevant base antenna element 14 but is slightly smaller and is arranged on the surface of a carrier 26 (indicated only by dash-dot lines in FIG. 1).
- the shape and arrangement of the base antenna elements 12, 14 relative to the respective leads 16 may vary depending on the embodiment and determines the polarization direction of the emitted radiation.
- the shapes and orientations of the additional antenna elements 24 are then respectively adapted accordingly.
- the printed circuit board 10 is formed by a dielectric plate which carries on one surface the base antenna elements 12, 14 and on the opposite surface has an electrically conductive (ground) layer 28.
- the dielectric plate has, for example, a thickness of 100 to 130 ⁇ .
- the carriers 26 are each formed by a block-shaped block made of a high-frequency (dielectric) material whose dimensions are similar to those of a conventional SMD device. Each carrier 26 together with the additional antenna element 24 arranged thereon thus forms a "chip" which, with the aid of an SMD placement machine, in a known manner on the surface of the printed circuit board 10 it can be mounted that the additional antenna element 24 is in the correct position over the associated base antenna element 14.
- Each of the inner base antenna elements 14 is covered with a bonding film 30 with which the carrier 26 is fixed on the circuit board 10.
- FIG. 3 and 4 show a modified embodiment in which the base antenna elements 12 ', 14' are formed by slot radiators.
- the printed circuit board 10 is provided at the top with a continuous metallic coating 32 in which slots 34 are formed to form the slot radiators.
- microstrip lines 36 are arranged, which intersect the slots 34 at right angles and serve to supply the microwave power to the slot radiators.
- the base antenna element 14 ' is associated with an additional antenna element 24 that sits on the surface of a carrier 26.
- the carrier 26 has the dimensions of an SMD chip and is fixed to the conductive layer 32 with a bonding film 30 or adhesive.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010040809A DE102010040809A1 (de) | 2010-09-15 | 2010-09-15 | Planare Gruppenantenne mit in mehreren Ebenen angeordneten Antennenelementen |
PCT/EP2011/062859 WO2012034762A1 (de) | 2010-09-15 | 2011-07-27 | Planare gruppenantenne mit in mehreren ebenen angeordneten antennenelementen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2617100A1 true EP2617100A1 (de) | 2013-07-24 |
Family
ID=44503808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11743222.9A Ceased EP2617100A1 (de) | 2010-09-15 | 2011-07-27 | Planare gruppenantenne mit in mehreren ebenen angeordneten antennenelementen |
Country Status (5)
Country | Link |
---|---|
US (1) | US9653807B2 (de) |
EP (1) | EP2617100A1 (de) |
CN (1) | CN103098301B (de) |
DE (1) | DE102010040809A1 (de) |
WO (1) | WO2012034762A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013221055A1 (de) * | 2013-10-17 | 2015-04-23 | Robert Bosch Gmbh | Kombination aus Radarsensor und Verkleidungsteil für ein Kraftfahrzeug |
US9488719B2 (en) * | 2014-05-30 | 2016-11-08 | Toyota Motor Engineering & Manufacturing North America, Inc. | Automotive radar sub-system packaging for robustness |
JP6486734B2 (ja) * | 2015-03-17 | 2019-03-20 | 株式会社豊田中央研究所 | アレーアンテナ装置 |
CN105578820A (zh) * | 2015-07-25 | 2016-05-11 | 宇龙计算机通信科技(深圳)有限公司 | 移动终端后盖及移动终端 |
JP6411593B1 (ja) * | 2017-08-04 | 2018-10-24 | 株式会社ヨコオ | 車載用アンテナ装置 |
US10910692B2 (en) | 2017-11-28 | 2021-02-02 | Taoglas Group Holdings Limited | In-glass high performance antenna |
US11108141B2 (en) | 2018-09-12 | 2021-08-31 | Taoglas Group Holdings Limited | Embedded patch antennas, systems and methods |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004059333A1 (de) * | 2004-12-09 | 2006-06-14 | Robert Bosch Gmbh | Antennenanordnung für einen Radar-Transceiver |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5006859A (en) * | 1990-03-28 | 1991-04-09 | Hughes Aircraft Company | Patch antenna with polarization uniformity control |
FR2668305B1 (fr) * | 1990-10-18 | 1992-12-04 | Alcatel Espace | Dispositif d'alimentation d'un element rayonnant fonctionnant en double polarisation. |
FR2757315B1 (fr) | 1996-12-17 | 1999-03-05 | Thomson Csf | Antenne reseau imprimee large bande |
DE10318815A1 (de) | 2003-04-17 | 2004-11-04 | Valeo Schalter Und Sensoren Gmbh | Schlitzgekoppelte Radarantenne mit Strahlungsflächen |
DE202004008770U1 (de) | 2004-06-03 | 2004-08-12 | Kathrein-Werke Kg | Dualpolarisierte Antenne |
FI118748B (fi) | 2004-06-28 | 2008-02-29 | Pulse Finland Oy | Pala-antenni |
US6999030B1 (en) * | 2004-10-27 | 2006-02-14 | Delphi Technologies, Inc. | Linear polarization planar microstrip antenna array with circular patch elements and co-planar annular sector parasitic strips |
DE102004063541A1 (de) | 2004-12-30 | 2006-07-13 | Robert Bosch Gmbh | Antennenanordnung für einen Radar-Transceiver |
US8378893B2 (en) * | 2007-10-11 | 2013-02-19 | Raytheon Company | Patch antenna |
TWI389390B (zh) * | 2008-01-04 | 2013-03-11 | Asustek Comp Inc | 陣列天線以及使用其之電子裝置 |
WO2009132042A1 (en) * | 2008-04-21 | 2009-10-29 | Spx Corporation | Phased-array antenna radiator parasitic element for a super economical broadcast system |
NL1035878C (en) * | 2008-08-28 | 2010-03-11 | Thales Nederland Bv | An array antenna comprising means to establish galvanic contacts between its radiator elements while allowing for their thermal expansion. |
-
2010
- 2010-09-15 DE DE102010040809A patent/DE102010040809A1/de not_active Withdrawn
-
2011
- 2011-07-27 US US13/820,986 patent/US9653807B2/en not_active Expired - Fee Related
- 2011-07-27 CN CN201180044134.8A patent/CN103098301B/zh not_active Expired - Fee Related
- 2011-07-27 EP EP11743222.9A patent/EP2617100A1/de not_active Ceased
- 2011-07-27 WO PCT/EP2011/062859 patent/WO2012034762A1/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004059333A1 (de) * | 2004-12-09 | 2006-06-14 | Robert Bosch Gmbh | Antennenanordnung für einen Radar-Transceiver |
Also Published As
Publication number | Publication date |
---|---|
CN103098301B (zh) | 2015-11-25 |
US9653807B2 (en) | 2017-05-16 |
WO2012034762A1 (de) | 2012-03-22 |
CN103098301A (zh) | 2013-05-08 |
US20130222197A1 (en) | 2013-08-29 |
DE102010040809A1 (de) | 2012-03-15 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20130415 |
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17Q | First examination report despatched |
Effective date: 20160502 |
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REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18R | Application refused |
Effective date: 20171214 |