WO2022269981A1 - レーダ装置 - Google Patents
レーダ装置 Download PDFInfo
- Publication number
- WO2022269981A1 WO2022269981A1 PCT/JP2022/004981 JP2022004981W WO2022269981A1 WO 2022269981 A1 WO2022269981 A1 WO 2022269981A1 JP 2022004981 W JP2022004981 W JP 2022004981W WO 2022269981 A1 WO2022269981 A1 WO 2022269981A1
- Authority
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- WIPO (PCT)
- Prior art keywords
- radio wave
- wave absorber
- radar device
- reflected
- radio
- Prior art date
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 124
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 102100034112 Alkyldihydroxyacetonephosphate synthase, peroxisomal Human genes 0.000 description 1
- 101000799143 Homo sapiens Alkyldihydroxyacetonephosphate synthase, peroxisomal Proteins 0.000 description 1
- 238000000848 angular dependent Auger electron spectroscopy Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- 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
-
- 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
- G01S2013/9315—Monitoring blind spots
-
- 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
- G01S2013/93274—Sensor installation details on the side of the vehicles
Definitions
- the present invention relates to radar equipment.
- ADAS driving assistance
- AD automated driving
- millimeter-wave radars installed in vehicles perform long-range environmental detection
- LRR Long Range Radar
- MRR Magnetic Range Radar
- a wide field of view (FOV) of ⁇ 75 degrees is required for MRR to cover the surroundings of the vehicle.
- FOV field of view
- Patent Document 1 As a background art of the present invention, in Patent Document 1 below, side lobes emitted from the radio wave radar are reflected by the body of the vehicle and reach the radiator fan between the radio wave radar and the radiator fan located behind the radio wave radar. A technique for attenuating extra radio waves (side lobes) by providing a radio wave absorber between an object that reflects radio waves and a radar is described.
- a radar device is a radar device to be mounted on a vehicle, comprising an antenna substrate on which a transmitting antenna and a receiving antenna are mounted, and a radio wave absorber, wherein radio waves transmitted from the transmitting antenna are The object is detected by the receiving antenna receiving reflected radio waves reflected by the object outside the vehicle, and a detection area, which is a detection target range of the object, is included within the viewing angle range of the radar device.
- the radio wave absorber has a first radio wave absorber and a second radio wave absorber, and the first radio wave absorber is installed so that at least a part of it falls within the non-detection area, and the second electromagnetic wave absorber is installed facing the first electromagnetic wave absorber.
- a radar device with improved reliability can be provided.
- FIG. 1 is an external view of a vehicle employing the radar device of the present invention
- the graph which shows the radio wave absorption amount of a radio wave absorber.
- a problem of a side radar device according to a conventional example different from that of FIG. A radar device according to a first embodiment of the present invention.
- the front view seen from the A direction of FIG. A radar device according to a second embodiment of the present invention.
- FIG. 1 is an external view of a vehicle that employs the radar device of the present invention.
- the vehicle 1 has side radar devices 2 on its left and right sides. It should be noted that the vehicle 1 is described assuming that the vehicle traveling direction 1a faces downward.
- the side radar device 2 is attached with a cover 3 and has a certain viewing angle 5 through the cover 3 .
- a detection area 6 is a certain range within the viewing angle 5 of the side radar device 2 for detecting obstacles near the sides of the vehicle 1 .
- a radio wave absorber 4 is arranged on the wall surface of the cover 3 to prevent the influence of radio waves in an area outside the detection area 6 (details will be described later).
- FIG. 2 is a diagram for explaining the features of the side radar 2.
- FIG. 3 is a graph illustrating the side radar characteristics with and without structures.
- a transmission radio wave 7 transmitted from the transmission antenna of the side radar 2 returns to the side radar 2 as a reflected radio wave 8 when it hits a target 10 to be detected.
- the side radar device 2 detects the target 10 by receiving the reflected radio wave 8 with the receiving antenna.
- the transmitted radio wave 7 also hits this structure and returns to the side radar 2 as a reflected radio wave 8. Affects the signal from 10.
- the side radar 2 may not be able to detect the target 10 because the detection accuracy of the position and angle of the target 10 is degraded.
- the peak indicating the target position is hidden by the received power 12 of the reflected wave from the target 10 due to the received power 11 of the reflected wave from the structure 9 other than the target 10. , there is a problem that the target position cannot be determined.
- FIG. 4 is a graph showing the amount of radio waves absorbed by radio wave absorbers.
- FIG. 5 is a diagram showing an example of installation positions of conventional radio wave absorbers.
- a millimeter-wave radar 15 equipped with an antenna substrate 14 shows the details of the side radar device 2 shown in FIGS.
- a detection area 6 which is the detection target range of the target 10
- a non-detection area 17 which is not the detection target range of the target 10 (FIG. 5).
- the transmitted radio wave 7 passing through the non-detection area 17 is absorbed by the radio wave absorber 4 provided inside the cover 3 and at least partly entering the non-detection area 17 in order to eliminate the influence on the target. be done.
- the radio wave absorber 4 is required to be impermeable to radio waves and to have attenuation (absorption amount) of 30 dB or more.
- the ⁇ /4-type radio wave absorber 4 coated on the back side has large frequency dependence and angle dependence, and the attenuation rate of the radio wave is greatly reduced when the incident angle of the transmission radio wave 7 is 15 degrees or more (Fig. 4). . Therefore, the transmitted radio wave 7 passing through the non-detection area 17 cannot be sufficiently absorbed, and the transmitted radio wave 7 that has not been absorbed becomes the reflected radio wave 8, which hits another structure 13 (such as a chassis) multiple times and is reflected. Then, it may return to the antenna substrate 14 side like the reflected radio wave 8a. Mounted on the antenna substrate 14 are a transmitting antenna for transmitting the transmitted radio wave 7 and a receiving antenna for receiving the reflected radio wave 8 from the target 10.
- the detection accuracy of the position and angle of the target deteriorates.
- FIG. 6 is a diagram explaining a problem of the side radar device according to the conventional example, which is different from that of FIG.
- the radio wave absorber 4 has an attenuation capability of nearly 30 dB near the incident angle of 0 degrees, but it is difficult to absorb all the power of the transmitted radio wave 7 at once. As a result, part of the transmitted radio wave 7 that could not be completely absorbed by the radio wave absorber 4 returns to the antenna substrate 14 side as a reflected radio wave 8, affecting the performance of the radar. Also, if the arrangement of the radio wave absorber 4 as shown in FIG. , the cover height 16 is increased because the cover 3 extends laterally outward (upper side of the drawing) of the vehicle 1 . As a result, a problem also arises in the area of the radio wave absorber 4 to be installed.
- FIG. 7 is a diagram for explaining the radar device according to the first embodiment of the present invention.
- the radar device includes a side radar device (millimeter wave radar 15) similar to that described with reference to FIGS. 5 and 6, and a cover 3 having a shape different from that of FIGS.
- a first radio wave absorber 4a is provided inside the cover 3 of this embodiment so as to block radio waves passing through the non-detection area 17 .
- the first radio wave absorber 4a is installed with respect to the antenna substrate 14 in the millimeter wave radar 15 so that the transmission radio wave 7 passing through the non-detection area 17 is reflected in the direction opposite to the detection area 6. be done.
- the second radio wave absorber 4b is arranged facing the first radio wave absorber 4a in such a direction that the reflected radio wave 8 from the first radio wave absorber 4a is similarly reflected in the direction opposite to the detection area 6.
- the first radio wave absorber 4a and the second radio wave absorber 4a reflect the reflected radio waves 8 that cannot be completely absorbed toward each other in a direction parallel to the viewing angle center line 5a of the antenna substrate 14. Or it is installed so as to reflect each in the direction of going away.
- the first radio wave absorber 4a and the second radio wave absorber 4b are non-parallel to each other, and are installed such that the distance on the side closer to the antenna substrate 14 is greater than the distance on the side farther from the antenna substrate 14. .
- the first radio wave absorber 4a is provided so that at least a part of it falls within the non-detection area 17, and is located on the opposite side of the detection area 6 so that all the reflected waves from the second radio wave absorber 4b hit it. It is stretched and installed. As a result, the transmitted radio wave 7 and its reflected radio wave 8 hit the radio wave absorbers 4a and 4b a plurality of times to increase the amount of radio wave absorption. This prevents the influence on the reflected radio waves of the
- the second electromagnetic wave absorber 4b can reduce the height and size of the cover 3 while maintaining the electromagnetic wave absorbing power. Even if the cover 3 receives an impact or is deformed due to deterioration over time, the same effect can be maintained as long as the positional relationship between the first radio wave absorber 4a and the second radio wave absorber 4b can be maintained. can.
- FIG. 8 is a front view seen from direction A in FIG.
- the width of the second radio wave absorber 4b is wider than that of the first radio wave absorber 4a. By doing so, the reflected radio waves 8 of the first radio wave absorber 4a can be absorbed without omission by the second radio wave absorber 4b.
- FIG. 9 is a diagram explaining a radar device according to the second embodiment of the present invention.
- the radar device 2 of this embodiment is provided with a third radio wave absorber 4c in addition to the first radio wave absorber 4a and the second radio wave absorber 4b.
- the third radio wave absorber 4c connects the first radio wave absorber 4a and the second radio wave absorber 4b. By doing so, the width of each cover can be reduced, and the reflected radio wave 8 can be reliably absorbed while contributing to miniaturization of the radar device 2 as a whole.
- illustration of the cover 3 is omitted in FIG. 9, in the radar device 2 of the present embodiment, the first radio wave absorber 4a, the second radio wave absorber 4b, and the third radio wave absorber 4c are shown in FIG. They are installed on the cover 3 in a positional relationship as shown.
- FIG. 10 is a radar device according to the third embodiment of the present invention.
- the first radio wave absorber 4a provided in the radar device 2 of the present embodiment is curved so as to be connected to the second radio wave absorber 4b, so that the two radio wave absorbers can reliably absorb the reflected radio waves 8. can be done.
- illustration of the cover 3 is omitted in FIG. 10 as well as in FIG. 9, in the radar device 2 of the present embodiment, the first radio wave absorber 4a and the second radio wave absorber 4b are arranged as shown in FIG. are installed on the cover 3 in such a positional relationship.
- FIG. 11 is a radar device according to the fourth embodiment of the present invention.
- the first radio wave absorber 4a provided in the radar device 2 of the present embodiment is curved and extended to the position where the second radio wave absorber 4b was arranged in FIGS.
- the reflected radio wave 8 can be reliably absorbed by one member.
- 11 also omits illustration of the cover 3 as in FIGS. 9 and 10, but in the radar device 2 of this embodiment, the first radio wave absorber 4a and the second radio wave absorber 4b are shown are installed on the cover 3 in a positional relationship as shown in FIG.
- FIG. 12 is a radar device according to the fifth embodiment of the present invention.
- the direction of the reflected radio wave 8 is directed toward the antenna substrate 14 (not shown) installed in the millimeter wave radar 15. placed parallel to the
- the second radio wave absorber 4b is installed parallel to the viewing angle center line 5a.
- the reflected radio wave 8 can be reliably applied to the second radio wave absorber 4b at a vertical or near-perpendicular angle to increase the amount of radio wave absorption. It can also contribute to vehicle miniaturization.
- the second wave absorber 4b may be installed in a direction that maximizes the amount of wave absorption by the second wave absorber 4b, although it is not parallel to the viewing angle center line 5a.
- FIG. 12 Although illustration of the cover 3 is omitted in FIG. 12 as well as in FIGS. are installed on the cover 3 in a positional relationship as shown in FIG.
- the radar device 2 transmits from the transmitting antenna
- the received radio wave 7 is reflected by an object 10 outside the vehicle 1 and the reflected radio wave 8 is received by the receiving antenna, whereby the object 10 is detected.
- a detection area 6, which is a target range, and a non-detection area 17, which is not a detection target range of the object 10, are set.
- the first radio wave absorber 4a is installed so that at least part of it falls within the non-detection area 17, and the second radio wave absorber 4b is installed facing the first radio wave absorber 4a be done. By doing so, it is possible to provide a radar device with improved reliability.
- the first radio wave absorber 4a and the second radio wave absorber 4b are non-parallel to each other. are set so that the distance between them is greater than the distance on the far side from the antenna substrate 14 . By doing so, the transmitted radio wave 7 and its reflected radio wave 8 are caused to hit the radio wave absorbers 4a and 4b a plurality of times, thereby increasing the amount of radio wave absorption, thereby exhibiting a sufficient absorption effect.
- the width of the second radio wave absorber 4b is larger than the width of the first radio wave absorber 4a.
- the first radio wave absorber 4a is installed so that the direction in which radio waves transmitted from the transmitting antenna are reflected is parallel to or away from the center line 5a of the viewing angle. By doing so, it is possible to prevent the reflected radio wave 8 from obstructing the detection of the target 10 toward the antenna substrate 14 side.
- the radio wave absorber 4 further has a third radio wave absorber 4c between the first radio wave absorber 4a and the second radio wave absorber 4b, and the third radio wave absorber 4c is , the first electromagnetic wave absorber 4a and the second electromagnetic wave absorber 4b are connected.
- the first radio wave absorber 4a is installed so that the direction in which the radio waves 7 transmitted from the transmitting antenna are reflected is parallel to the antenna substrate 14, and the second radio wave absorber 4b has a viewing angle of is installed parallel to the center line 5a of the By doing so, the amount of radio wave absorption can be increased, and the height of the vehicle 1 in the vehicle width direction can be suppressed, thereby contributing to miniaturization of the vehicle.
- the second radio wave absorber 4b is installed in a direction that maximizes the amount of absorption of radio waves reflected by the first radio wave absorber 4a. By doing so, the amount of radio wave absorption can be increased.
- the present invention is not limited to the above embodiments, and various modifications and other configurations can be combined without departing from the scope of the invention. Moreover, the present invention is not limited to those having all the configurations described in the above embodiments, and includes those having some of the configurations omitted.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
図1は、本発明のレーダ装置を採用した車両の外観図である。
1a 車両進行方向
2 サイドレーダ装置
3 カバー
4 電波吸収体
4a 第1の電波吸収体
4b 第2の電波吸収体
4c 第3の電波吸収体
5 視野角
5a 視野角中心線
6 検知エリア
7 送信電波
8 反射電波
8a ミリ波レーダに戻る反射電波
9 構造物(ポール)
10 ターゲット
11 構造物(ポール)ありの受信電力
12 構造物(ポール)なしの受信電力
13 構造物(シャーシ等)
14 アンテナ基板
15 ミリ波レーダ
16 カバー高さ
17 非検知エリア
Claims (7)
- 車両に搭載されるレーダ装置であって、
送信アンテナと受信アンテナとが実装されているアンテナ基板と、
電波吸収体と、を備え、
前記レーダ装置は、前記送信アンテナから送信された電波が前記車両外の物体で反射された反射電波を前記受信アンテナが受信することで、前記物体を検知し、
前記レーダ装置の視野角の範囲内には、前記物体の検知対象範囲である検知エリアと、前記物体の検知対象範囲ではない非検知エリアとが設定されており、
前記電波吸収体は、第1の電波吸収体と第2の電波吸収体とを有し、
前記第1の電波吸収体は、前記非検知エリア内に少なくとも一部が入るように設置され、
前記第2の電波吸収体は、前記第1の電波吸収体と対向して設置される
レーダ装置。 - 請求項1に記載のレーダ装置であって、
前記第1の電波吸収体と前記第2の電波吸収体とは、互いに非平行であり、前記アンテナ基板に近い側における前記第1の電波吸収体と前記第2の電波吸収体との間の距離が前記アンテナ基板から遠い側における前記距離よりも大きくなる、ように設置される
レーダ装置。 - 請求項1に記載のレーダ装置であって、
前記車両の正面から見たとき、前記第2の電波吸収体の幅は、前記第1の電波吸収体の幅よりも大きい
レーダ装置。 - 請求項1に記載のレーダ装置であって、
前記第1の電波吸収体は、前記送信アンテナから送信される電波を反射する方向が前記視野角の中心線に対して平行方向または遠ざかる方向となる向きに設置されている
レーダ装置。 - 請求項2に記載のレーダ装置であって、
前記電波吸収体は、前記第1の電波吸収体と前記第2の電波吸収体との間には、第3の電波吸収体をさらに有し、
前記第3の電波吸収体は、前記第1の電波吸収体と前記第2の電波吸収体とを接続している
レーダ装置。 - 請求項1に記載のレーダ装置であって、
前記第1の電波吸収体は、前記送信アンテナから送信される電波を反射する方向が前記アンテナ基板に対して平行となるように設置され、前記第2の電波吸収体は、前記視野角の中心線に対して平行に設置される
レーダ装置。 - 請求項1に記載のレーダ装置であって、
前記第2の電波吸収体は、前記第1の電波吸収体により反射された電波の吸収量が最大となる向きに設置される
レーダ装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280034056.1A CN117280241A (zh) | 2021-06-23 | 2022-02-08 | 雷达装置 |
US18/563,493 US20240272274A1 (en) | 2021-06-23 | 2022-02-08 | Radar device |
DE112022001660.4T DE112022001660T5 (de) | 2021-06-23 | 2022-02-08 | Radarvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021104438A JP2023003332A (ja) | 2021-06-23 | 2021-06-23 | レーダ装置 |
JP2021-104438 | 2021-06-23 |
Publications (1)
Publication Number | Publication Date |
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WO2022269981A1 true WO2022269981A1 (ja) | 2022-12-29 |
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PCT/JP2022/004981 WO2022269981A1 (ja) | 2021-06-23 | 2022-02-08 | レーダ装置 |
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US (1) | US20240272274A1 (ja) |
JP (1) | JP2023003332A (ja) |
CN (1) | CN117280241A (ja) |
DE (1) | DE112022001660T5 (ja) |
WO (1) | WO2022269981A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014148597A1 (ja) * | 2013-03-22 | 2014-09-25 | 株式会社デンソー | アンテナ装置 |
US20160268693A1 (en) * | 2015-03-12 | 2016-09-15 | Autoliv Asp, Inc. | Apparatus and method for mitigating multipath effects and improving absorption of an automotive radar module |
WO2020195989A1 (ja) * | 2019-03-22 | 2020-10-01 | 株式会社村田製作所 | レーダ装置およびそれを備える車両 |
JP2021038984A (ja) * | 2019-09-02 | 2021-03-11 | 古河電気工業株式会社 | レーダ装置を取り付けた構造体、および、ブラケット |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004101450A (ja) | 2002-09-12 | 2004-04-02 | Hitachi Ltd | 電波レーダの取付け構造 |
-
2021
- 2021-06-23 JP JP2021104438A patent/JP2023003332A/ja active Pending
-
2022
- 2022-02-08 US US18/563,493 patent/US20240272274A1/en active Pending
- 2022-02-08 CN CN202280034056.1A patent/CN117280241A/zh active Pending
- 2022-02-08 WO PCT/JP2022/004981 patent/WO2022269981A1/ja active Application Filing
- 2022-02-08 DE DE112022001660.4T patent/DE112022001660T5/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014148597A1 (ja) * | 2013-03-22 | 2014-09-25 | 株式会社デンソー | アンテナ装置 |
US20160268693A1 (en) * | 2015-03-12 | 2016-09-15 | Autoliv Asp, Inc. | Apparatus and method for mitigating multipath effects and improving absorption of an automotive radar module |
WO2020195989A1 (ja) * | 2019-03-22 | 2020-10-01 | 株式会社村田製作所 | レーダ装置およびそれを備える車両 |
JP2021038984A (ja) * | 2019-09-02 | 2021-03-11 | 古河電気工業株式会社 | レーダ装置を取り付けた構造体、および、ブラケット |
Also Published As
Publication number | Publication date |
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JP2023003332A (ja) | 2023-01-11 |
CN117280241A (zh) | 2023-12-22 |
US20240272274A1 (en) | 2024-08-15 |
DE112022001660T5 (de) | 2024-01-25 |
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