EP1588190A1 - Winkelauflösendes antennensystem - Google Patents
Winkelauflösendes antennensystemInfo
- Publication number
- EP1588190A1 EP1588190A1 EP03773562A EP03773562A EP1588190A1 EP 1588190 A1 EP1588190 A1 EP 1588190A1 EP 03773562 A EP03773562 A EP 03773562A EP 03773562 A EP03773562 A EP 03773562A EP 1588190 A1 EP1588190 A1 EP 1588190A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- radar sensors
- antenna system
- opening width
- receiving
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
- G01S13/878—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/247—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching by switching different parts of a primary active element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2682—Time delay steered arrays
- H01Q3/2694—Time delay steered arrays using also variable phase-shifters
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/426—Scanning radar, e.g. 3D radar
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4445—Monopulse radar, i.e. simultaneous lobing amplitude comparisons monopulse, i.e. comparing the echo signals received by an antenna arrangement with overlapping squinted beams
-
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S2013/0236—Special technical features
- G01S2013/0245—Radar with phased array antenna
- G01S2013/0254—Active array antenna
-
- 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
- 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
- G01S2013/9327—Sensor installation details
- G01S2013/93271—Sensor installation details in the front of the vehicles
Definitions
- FIG. 1 shows a radar sensor, each with a transmitting and a receiving antenna column
- Figure 2 shows an antenna characteristic in the azimuth direction for transmission
- Figure 4 shows a target situation with antenna characteristics of three radar sensors without
- FIG. 5 shows the target situation corresponding to FIG. 4 with two radar sensors with switching of the antenna characteristics
- FIG. 7 shows a radar sensor with alignment of the antenna characteristics with a narrower one
- Figure 8 shows the antenna characteristics of two arrays of patch antennas
- Figure 9 shows the formation of a patch antenna array and the signal evaluation.
- FIG. 1 shows a known antenna arrangement, each with a column 1 of four patch exciters for transmitting and a column 2 of four patch exciters for receiving, which is separate therefrom.
- a single patch exciter has an opening angle of approx. 90 °.
- the vertical antenna opening angle (elevation) decreases with the number of antenna elements.
- a vertical opening angle of 30 ° is achieved with the four patch exciters according to FIG. In the horizontal direction (azimuth) nothing changes compared to a single exciter, ie the opening angle is 90 °.
- Antenna characteristics are shown in Figure 2.
- the antenna characteristics for sending and receiving in azimuth are practically the same.
- beamforming can also be carried out in azimuth.
- the antenna diagram can be swiveled if the individual columns are also controlled separately with signals that can be shifted in phase.
- phase shifters 3 with different delay times can be provided per column (FIG. 9, the output signals of which are processed together in the evaluation unit 4 in order to differentiate the angular offset from the received signals of the two radar sensors
- Switching off or switching on antenna columns can also be varied in the antenna diagram or the antenna characteristic.
- FIG. 9 shows two switchable columns, each with four patch exciters.
- FIG. 4 shows the ACC stop-and-go situation with three radar sensors without antenna switching. At least three radar sensors 5, 6 and 7 are required in order to be able to react clearly to two targets with triangulation.
- Lobes ie the antenna characteristics with a narrow beam opening width, are off the sensor axis, ie the central plumb of the two radar sensors, is pivoted towards the center of the vehicle. This increases the range directly in front of the vehicle.
- the antenna columns are switched on or off depending on the application.
- the radar sensors can continue to be the same when additional columns are switched off
- FIG. 6 shows the case with the lobes turned outwards with respect to the narrow beam opening widths.
- This arrangement enables precise detection at the boundaries of the travel tube in the forward as well as in the reverse direction. It is of course also possible to align the narrow antenna lobes in the direction of the sensor axis (FIG. 7).
- the same advantage as described above is achieved by clever selection processes.
- two targets can be clearly assigned (Figure 8).
- the increased antenna gain of the antenna increases the range of the radar sensor.
- switching the antenna characteristics (lobes) enables the radar sensor to be used optimally at close range and in the distance. The antenna characteristics remain constant so that the transmission power does not have to be switched. This might be necessary for approval reasons.
- the receiving antenna consists of an array of individual patches.
- the control of the antenna columns provides information about the mode of operation. Either the signal phases are switched and there is a swiveling antenna lobe, or the columns are switched on and there is a significant change in
- the antenna system according to the invention is advantageously suitable for angular resolution in pulse radar applications in motor vehicle technology, but can also be used advantageously for other applications.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10261027A DE10261027A1 (de) | 2002-12-24 | 2002-12-24 | Winkelauflösendes Antennensystem |
DE10261027 | 2002-12-24 | ||
PCT/DE2003/003514 WO2004061475A1 (de) | 2002-12-24 | 2003-10-22 | Winkelauflösendes antennensystem |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1588190A1 true EP1588190A1 (de) | 2005-10-26 |
Family
ID=32477996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03773562A Withdrawn EP1588190A1 (de) | 2002-12-24 | 2003-10-22 | Winkelauflösendes antennensystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US7268722B2 (de) |
EP (1) | EP1588190A1 (de) |
JP (1) | JP2006512578A (de) |
DE (1) | DE10261027A1 (de) |
WO (1) | WO2004061475A1 (de) |
Families Citing this family (73)
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DE10352281A1 (de) * | 2003-11-08 | 2005-06-09 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Antennenanordnung |
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DE102004004492A1 (de) * | 2004-01-29 | 2005-08-18 | Robert Bosch Gmbh | Radarsystem für Kraftfahrzeuge |
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DE102004054466A1 (de) * | 2004-11-11 | 2006-06-08 | Robert Bosch Gmbh | Radarsystem insbesondere zur Entfernungs- und/oder Geschwindigkeitsmessung |
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US7068211B2 (en) * | 2000-02-08 | 2006-06-27 | Cambridge Consultants Limited | Methods and apparatus for obtaining positional information |
AU2001286513A1 (en) | 2000-08-16 | 2002-02-25 | Raytheon Company | Switched beam antenna architecture |
JP2002111359A (ja) * | 2000-09-27 | 2002-04-12 | Murata Mfg Co Ltd | アンテナ装置、通信装置およびレーダ装置 |
DE10056002A1 (de) * | 2000-11-11 | 2002-05-23 | Bosch Gmbh Robert | Radareinrichtung und Verfahren zum Betreiben einer Radareinrichtung |
US6750810B2 (en) * | 2001-12-18 | 2004-06-15 | Hitachi, Ltd. | Monopulse radar system |
JP2004077399A (ja) * | 2002-08-22 | 2004-03-11 | Hitachi Ltd | ミリ波レーダ |
DE10261027A1 (de) * | 2002-12-24 | 2004-07-08 | Robert Bosch Gmbh | Winkelauflösendes Antennensystem |
-
2002
- 2002-12-24 DE DE10261027A patent/DE10261027A1/de not_active Withdrawn
-
2003
- 2003-10-22 JP JP2004564146A patent/JP2006512578A/ja active Pending
- 2003-10-22 US US10/527,150 patent/US7268722B2/en not_active Expired - Fee Related
- 2003-10-22 EP EP03773562A patent/EP1588190A1/de not_active Withdrawn
- 2003-10-22 WO PCT/DE2003/003514 patent/WO2004061475A1/de active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2004061475A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10261027A1 (de) | 2004-07-08 |
WO2004061475A1 (de) | 2004-07-22 |
US7268722B2 (en) | 2007-09-11 |
JP2006512578A (ja) | 2006-04-13 |
US20060164294A1 (en) | 2006-07-27 |
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