WO2013187309A1 - レドームを備えるレーダ装置 - Google Patents

レドームを備えるレーダ装置 Download PDF

Info

Publication number
WO2013187309A1
WO2013187309A1 PCT/JP2013/065710 JP2013065710W WO2013187309A1 WO 2013187309 A1 WO2013187309 A1 WO 2013187309A1 JP 2013065710 W JP2013065710 W JP 2013065710W WO 2013187309 A1 WO2013187309 A1 WO 2013187309A1
Authority
WO
WIPO (PCT)
Prior art keywords
attenuation
layer
radar
transmission
radome
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
Application number
PCT/JP2013/065710
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
晶久 藤田
浩一 星野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Priority to US14/407,809 priority Critical patent/US9502760B2/en
Publication of WO2013187309A1 publication Critical patent/WO2013187309A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
    • 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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems

Definitions

  • the present disclosure relates to a radar apparatus including an antenna and a radome that protects the antenna.
  • the radar device is a device that detects a distance, a direction, and the like with an obstacle existing around by transmitting a radio wave and receiving a reflected wave of the transmitted radio wave.
  • the antenna provided in the radar apparatus is protected by a radome.
  • Japanese Patent Application Laid-Open No. 2003-243920 discloses a radar device including an attenuation radome as such a radome.
  • the attenuation radome has a core layer made of a material that gives high loss to radio waves transmitted and received by the antenna.
  • the radio wave shielding rate increases in proportion to the thickness of the core layer at the site where the attenuation radome is provided. For this reason, in order to obtain a sufficient shielding effect, it is necessary to form a thick core layer, which may hinder miniaturization and weight reduction.
  • the present disclosure has been made in view of these problems, and provides a radar device that can efficiently shield radio waves.
  • the radar device of the present disclosure includes a radome and an antenna, and the radome has a transmission portion and an attenuation portion.
  • the attenuation unit includes at least a first attenuation layer formed of a material for attenuating a radar wave, and the first attenuation layer has a quarter (2n ⁇ ) of the wavelength of the radar wave in the first attenuation layer. 1) The thickness is doubled (where n is a natural number).
  • a transmission wave transmitted through the first attenuation layer as it is and transmitted to the outside at the attenuation unit has a path difference that is an integral multiple of one half of the wavelength of the radar wave in the first attenuation layer.
  • the phase is shifted by a half wavelength. For this reason, both transmission waves act so as to cancel each other, and the radar wave transmitted through the attenuation unit can be attenuated.
  • the received wave that has passed through the first attenuation layer and the received wave that has passed through the first attenuation layer after multiple reflection at the first attenuation layer cancel each other out. To do.
  • the radar apparatus not only the radar wave is attenuated by the material constituting the attenuation unit, but also the simple transmitted wave that simply passes through the attenuation unit and the attenuation unit after the multiple reflection at the attenuation unit. Since the configuration is such that multiple reflected waves cancel each other, radio waves can be efficiently shielded.
  • the radar apparatus 1 includes a housing 10 and a radome 20 that is paired with the housing 10 and is formed in a substantially rectangular parallelepiped shape.
  • the radome 20 is formed in a bottomed cylindrical shape, and includes a transmission part 32 formed on the bottom part and an attenuation part 31 formed so as to surround the transmission part 32. Become.
  • a radar unit 50 for recognizing a target existing around the vehicle is accommodated.
  • the radar unit 50 has at least an antenna unit 60.
  • the antenna unit 60 includes an antenna substrate 62, and the antenna substrate 62 is disposed so that one surface thereof faces a surface (hereinafter referred to as an upper bottom surface) that forms the accommodation space 18 of the transmission unit 32. .
  • a transmitting antenna 64 and a receiving antenna 66 are formed as an array antenna on the surface of the antenna substrate 62 facing the upper bottom surface.
  • the surface where both antennas are formed is referred to as an antenna forming surface, and the region where both antennas are formed is referred to as an antenna opening surface.
  • the antenna unit 60 has a performance (combined directivity) in which the directivity of the transmission antenna 64 and the directivity of the reception antenna 66 are combined.
  • This combined directivity extends in the normal direction (the direction of arrow a in FIG. 2) with respect to the antenna opening surface, and has a symmetrical shape with respect to the normal direction.
  • the normal direction a is referred to as the beam direction a of the antenna unit 60.
  • the transmission part 32 is a part located in the normal direction a, that is, the beam direction a
  • the attenuation part 31 is a part located in a direction outside the range of the combined directivity.
  • the beam direction a corresponds to the z coordinate direction shown in FIG.
  • the transmission part 32 is formed of a transmission material that is a material that transmits radar waves with low loss.
  • the thickness t0 of the transmission part 32 is set to a half value of the wavelength of the radar wave propagating through the transmission material as shown in the equation (1).
  • the attenuation unit 31 includes a transmission layer 42 formed of the same transmission material as the transmission unit 32, an attenuation layer 41 formed of an attenuation material on the accommodation space 18 side of the transmission layer 42, and the transmission layer 42.
  • An attenuation layer 43 formed of the same attenuation material as the attenuation layer 41 is provided on the outer side. That is, the attenuation unit 31 has a three-layer configuration in which the transmission layer 42 is sandwiched between the attenuation layers 41 and 43.
  • the attenuating material is a material that has a dielectric constant different from that of the transmitting material and transmits radar waves with high loss.
  • the dielectric loss tangent (tan ⁇ ) of the transmitting material is A1
  • the dielectric loss tangent of the attenuation material is A2, A1 ⁇ A2.
  • the thicknesses t1 and t3 of the attenuation layers 41 and 43 are 2n-1 times the quarter of the wavelength of the radar wave propagating through the attenuation material as shown in the equation (2) (where n is It is set to a value that is a natural number). Further, the thickness t2 of the transmission layer 42 is set to a value obtained by multiplying a quarter of the wavelength of the radar wave propagating through the transmission material by 2n-1 (where n is a natural number) as shown in the equation (3). Has been.
  • ⁇ 2 represents the dielectric constant of the damping material.
  • n is a natural number.
  • n 1 and the thicknesses of the attenuation layers 41 and 43 and the transmission layer 42 are set. That is, t1 and t3 are set to a quarter value of the wavelength of the radar wave propagating in the attenuation material, and t2 is set to a quarter value of the wavelength of the radar wave propagating in the transmission material. Yes.
  • the antenna substrate 62 has an accommodation space so that the upper surface (antenna formation surface (position P)) is located above the lower end (position Q) of the attenuation layer 41 of the attenuation section 31 with the beam direction a being the vertical direction. 18 is arranged.
  • the radar wave transmitted to the outside is attenuated when passing through the attenuation layer 41 and the attenuation layer 43. Further, although the rate of attenuation is considerably smaller than when passing through the attenuation layers 41 and 43, the radar wave is attenuated when passing through the transmission layer 42.
  • the phase of the radar wave transmitted to the outside differs.
  • Several paths of radar waves transmitted to the outside are conceivable.
  • the first path that is transmitted without being reflected by any layer in the order of the attenuation layer 41, the transmission layer 42, and the attenuation layer 43 is the first.
  • the route 71 is assumed.
  • the second path 72 is a path that is reflected, that is, a path that is reflected at the boundary on both sides of the attenuation layer 41.
  • the light passes through the attenuation layer 41 and the transmission layer 42, is reflected at the boundary between the attenuation layer 43 and the outside, is reflected at the boundary between the attenuation layer 43 and the transmission layer 42, and then is transmitted through the attenuation layer 43 and transmitted.
  • the fourth path 74 is a path that is reflected on both sides of the attenuation layer 43.
  • a radar wave transmitted to the outside via the first path 71 (hereinafter referred to as a simple transmitted wave) and a radar wave transmitted to the outside via the second path 72, the third path 73, and the fourth path 74.
  • a radar wave transmitted to the outside via the first path 71 (hereinafter referred to as a simple transmitted wave) and a radar wave transmitted to the outside via the second path 72, the third path 73, and the fourth path 74.
  • multiple reflection waves has a half-wavelength path difference of the radar wave in the attenuation layer 41, the transmission layer 42, and the attenuation layer 43, respectively, and the phase is shifted by a half wavelength. . Therefore, the simple transmitted wave and the multiple reflected wave act so as to cancel each other.
  • the first route 71 to the fourth route 74 have been described by way of example. However, also in various other routes, when the route difference is a half value of the wavelength, or to a half of the wavelength. When the value is obtained by adding an integral multiple of the wavelength, these radar waves cancel each other.
  • the radar apparatus 1 attenuates the radar wave transmitted to the outside through the attenuation unit 31 by the attenuation layers 41 and 43 and the transmission layer 42 and cancels using the path difference.
  • the attenuation unit 31 provided in a direction outside the range of the combined directivity of the antenna unit 60 not only attenuates the radar wave by the material, but also simply Since the transmitted wave and the multiple reflected wave are canceled, the radio wave can be efficiently shielded. Therefore, a transmission wave or a reception wave in a direction outside the range of the combined directivity of the antenna can be used as an unnecessary wave to attenuate the unnecessary wave and improve the characteristics of the radar apparatus.
  • the attenuating portion 31 has a three-layer configuration, the strength of the radome 20 can be improved as compared to a case where the attenuating portion has a single-layer configuration including one attenuating layer. Furthermore, since the transmissive layer 42 is formed of the same material as that for forming the transmissive portion 32, the radome 20 can be easily formed by two-color molding. In addition, the attenuation layers 41 and 43, that is, the attenuation portion 31 can be formed thin due to the wavelength shortening effect in the dielectric, and as a result, the radar device 1 can be downsized.
  • the antenna unit 60 in this embodiment corresponds to an “antenna” in the claims
  • the attenuation unit 31 corresponds to an “attenuation unit” in the claims
  • the attenuation layers 41 and 43 serve as “first attenuation layers”.
  • the transmission layer 42 corresponds to the “second attenuation layer” in the claims.
  • An area where the transmission antenna 64 and the reception antenna 66 are formed corresponds to an “opening surface” in the claims.
  • the radar device 2 according to the second embodiment is different from the above embodiment in that the attenuation unit 33 of the radome 22 has a two-layer configuration.
  • the same components as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
  • the radome 22 has a shape obtained by removing the attenuation layer 43 from the attenuation portion 31 of the radome 20 of the above embodiment, and includes the attenuation layer 41 and the transmission layer 42. Accordingly, the attenuation part 33 becomes thinner than the attenuation part 31 of the above embodiment, and the housing 12 is formed to have a thickness matching the attenuation part 33.
  • the radar apparatus 2 configured in this way has a simple structure, it can be easily manufactured.
  • the radar device 3 according to the third embodiment is different in that the radome 23 includes a conductive layer 47 in the attenuation unit 35.
  • the conductive layer 47 is provided between the attenuation layer 41 and the transmission layer 42 and is made of a metal thin film.
  • the conductive layer 47 does not transmit radio waves, reception and transmission of unnecessary waves at the attenuation unit 35 can be suppressed. Furthermore, at the time of transmission, since the reflected wave from the boundary between the attenuation layer 41 and the accommodation space 18 and the reflected wave from the boundary between the attenuation layer 41 and the conductive layer 47 cancel each other, the inside of the radar device 3 (accommodation space 18 ) Can be reduced.
  • the conductive layer 47 in the present embodiment corresponds to a “third attenuation layer” in the claims.
  • ⁇ Fourth embodiment> In the radar apparatus 4 of the fourth embodiment, as shown in FIG. 6, the configuration of the attenuation unit 37 is different from that of the above embodiment.
  • the attenuating portion 37 has a single layer configuration including the attenuating layer 43, and accordingly, the housing 14 is formed with a thickness corresponding to the attenuating layer 43.
  • the attenuation layer 43 includes a wall portion 45 corresponding to the side wall of the radome 24 formed in a bottomed cylindrical shape, and an upper surface portion formed so as to extend from the wall portion 45 to the center of the radome 24 along the transmission portion 32. 46. That is, in the present embodiment, the attenuation portion 37 is formed along the periphery of the transmission portion 32.
  • the transmitting portion 32 corresponds to a portion of the radome 24 where the antenna opening surface is projected in the normal direction (beam direction) a.
  • the part of the transmission part 32 that does not overlap the attenuation part 37 is located closer to the center than the part of the antenna opening surface projected in the normal direction. Further, the area R of the portion that does not overlap the attenuation portion 37 in the transmission portion 32 is formed to be smaller than the antenna opening area S (R ⁇ S).
  • the radar apparatus 4 configured as described above can further improve the shielding effect against unnecessary waves in a region outside the range of the combined directivity of the antenna unit 60.
  • this indication is not limited to the above-mentioned embodiment, and can be carried out in various modes in the range which does not deviate from the gist of this indication.
  • the radome attenuation unit includes a single-layer configuration including the first attenuation layer, a two-layer configuration including the first attenuation layer and the second attenuation layer, and a plurality of first attenuation layers and a single attenuation layer.
  • it has a three-layer structure composed of a transmissive layer, it is not limited to this.
  • a three-layer configuration including a single first attenuation layer, a plurality of second attenuation layers, and a dielectric layer may be employed, or a configuration in which a plurality of first attenuation layers and second attenuation layers are alternately stacked may be employed. .
  • the conductive layer is made of a metal film, but is not limited thereto.
  • the beam direction a of the antenna unit 60 is the normal direction of the antenna formation surface of the antenna substrate 62.
  • the beam direction of the antenna unit is not limited to this, and is arbitrarily set. It's okay.
  • the range of the combined directivity of the antenna unit 60 is the target for the beam direction a in the above embodiment, but is not limited to this, and may be set arbitrarily.
  • a part where the radar wave is to be transmitted (a part located in the range of the combined directivity) is configured as a transmission part, and a part where the radar wave is not desired to be transmitted (in a direction outside the range of the combined directivity). It suffices if the part to be positioned is configured as an attenuation part.
  • the thickness of the attenuation layer and the transmission layer may be set to a value (natural number) in which n is arbitrarily determined. Further, as long as at least one attenuation layer is set to a value satisfying the formula (2), the other layers constituting the attenuation unit may be set to an arbitrary thickness.
  • the radome is formed by the two-color molding method, but the present invention is not limited to this.
  • the radome may be formed by individually forming the attenuation layer and the transmission layer by injection molding or the like and then bonding them with an adhesive.
  • the attenuation layer and the transmission layer may be integrated by thermocompression bonding.
  • the radar device is mounted on a vehicle and may be attached to any part of the vehicle. Then, a part of the vehicle body located in the beam direction of the radar apparatus is formed of a transmission material, and a part of the vehicle body located in a direction deviating from the beam direction is formed of an attenuation material, which are the radomes of the above embodiment. You may comprise so that it may serve as.
  • the emblem positioned in the beam direction is formed of a transmission material
  • the A wall portion extending from the back side of the emblem to the vehicle side may be formed by a damping material along the outer edge of the emblem.
  • the thickness of the wall portion is a value obtained by multiplying a quarter of the wavelength of the radar wave at the attenuation material by 2n-1 times (where n is a natural number). That is, the emblem formed of the transmission material and the attenuation material in this way may also be configured to serve as the radome of the radar apparatus.
  • the radar device is attached to the interior of a room mirror (back side of the mirror) provided in the vehicle interior, it is positioned in the beam direction on the back of the room mirror (housing to which the mirror is attached).
  • the part may be formed of a transmission material, and the part located in a direction away from the beam direction may be formed of an attenuation material.
  • the thickness of the part located in the direction deviating from the beam direction is a value obtained by multiplying a quarter of the wavelength of the radar wave at the attenuation material by 2n-1 (where n is a natural number). That is, the rear surface of the room mirror formed by the transmission material and the attenuation material in this way may be configured to also serve as the radome of the radar apparatus.
  • the location where the radar device is mounted and the size of the radar device are not limited to these, and there are various types of vehicle bodies that also serve as part of the radome of the radar device.
  • vehicle bodies that also serve as part of the radome of the radar device. The following embodiments are possible.

Landscapes

  • 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)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aerials With Secondary Devices (AREA)
PCT/JP2013/065710 2012-06-14 2013-06-06 レドームを備えるレーダ装置 Ceased WO2013187309A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/407,809 US9502760B2 (en) 2012-06-14 2013-06-06 Radar apparatus provided with radome

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012134679A JP5953969B2 (ja) 2012-06-14 2012-06-14 レーダ装置
JP2012-134679 2012-06-14

Publications (1)

Publication Number Publication Date
WO2013187309A1 true WO2013187309A1 (ja) 2013-12-19

Family

ID=49758134

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/065710 Ceased WO2013187309A1 (ja) 2012-06-14 2013-06-06 レドームを備えるレーダ装置

Country Status (3)

Country Link
US (1) US9502760B2 (enExample)
JP (1) JP5953969B2 (enExample)
WO (1) WO2013187309A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641017A (zh) * 2020-05-28 2020-09-08 深圳市晓控通信科技有限公司 一种安全性高的天线
CN113138368A (zh) * 2020-01-20 2021-07-20 华为技术有限公司 一种雷达装置和移动平台
US20220146622A1 (en) * 2019-02-06 2022-05-12 Metawave Corporation Method and apparatus for electromagnetic transmission attenuation control

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013220259A1 (de) * 2013-10-08 2015-04-09 Robert Bosch Gmbh Radarsensor mit Radom
JP2016006411A (ja) * 2014-05-27 2016-01-14 パナソニックＩｐマネジメント株式会社 ミリ波用アンテナ及び車載用レーダ装置
US11362431B1 (en) * 2015-06-16 2022-06-14 Oceanit Laboratories, Inc. Optically transparent radar absorbing material (RAM)
EP3107151B1 (en) * 2015-06-17 2022-04-27 Volvo Car Corporation Low reflection radar bracket
DE102016217057A1 (de) * 2016-09-08 2018-03-08 Robert Bosch Gmbh Radarmodul für ein Fahrzeug
USD873249S1 (en) 2016-12-06 2020-01-21 Commscope Technologies Llc Antenna radome enclosure and a radome
CN109997279B (zh) * 2016-12-06 2021-09-03 康普技术有限责任公司 天线的天线罩-外壳和相关的天线结构
JP2018112528A (ja) * 2017-01-13 2018-07-19 本田技研工業株式会社 カバー部材およびセンサーアセンブリ
US11121447B2 (en) * 2017-09-27 2021-09-14 Apple Inc. Dielectric covers for antennas
JP2018028551A (ja) * 2017-10-23 2018-02-22 古河電気工業株式会社 レーダ装置の配置構造
US10761204B2 (en) * 2017-12-15 2020-09-01 Google Llc Radar attenuation mitigation
KR20190085266A (ko) * 2018-01-10 2019-07-18 주식회사 만도 차량용 레이더 장치
CN111344590B (zh) * 2018-01-30 2024-05-24 古野电气株式会社 雷达天线装置以及方位测定方法
DE112020001377T5 (de) * 2019-03-22 2021-12-09 Murata Manufacturing Co., Ltd. Radarvorrichtung und mit derselben ausgerüstetes fahrzeug
WO2020192888A1 (en) * 2019-03-25 2020-10-01 Telefonaktiebolaget Lm Ericsson (Publ) Means and method for antenna alignment
US11226397B2 (en) * 2019-08-06 2022-01-18 Waymo Llc Slanted radomes
US11385325B2 (en) * 2019-08-07 2022-07-12 Waymo Llc Corrugated radomes
DE102019213170A1 (de) * 2019-08-30 2021-03-04 Robert Bosch Gmbh Vorrichtung für ein Fahrzeug
EP3798676B1 (en) * 2019-09-24 2025-08-27 Qualcomm Auto Ltd. A radar side-shield and a radar transceiver assembly
JP7417491B2 (ja) * 2020-07-31 2024-01-18 株式会社Soken レーダ装置
JP7599879B2 (ja) * 2020-09-24 2024-12-16 スタンレー電気株式会社 ランプ装置
JP7567506B2 (ja) * 2021-01-28 2024-10-16 株式会社デンソー 電波吸収体および電波吸収体の形成方法
KR102666163B1 (ko) * 2021-03-04 2024-05-14 (주)스마트레이더시스템 타겟 검출용 레이더 장치
JP2023055091A (ja) * 2021-10-05 2023-04-17 豊田合成株式会社 車両用部品
EP4287401A1 (en) * 2022-06-01 2023-12-06 Aptiv Technologies Limited Radar with scattering optimized absorber
EP4415170A1 (en) * 2023-02-09 2024-08-14 Aptiv Technologies AG Radar with optimized absorber
EP4648222A1 (en) * 2024-05-07 2025-11-12 Aptiv Technologies AG Performance optimized radome absorber attachement for radar rcs reduction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001127523A (ja) * 1999-10-29 2001-05-11 Mitsubishi Electric Corp レドーム付きマイクロストリップアレーアンテナ
JP2004077399A (ja) * 2002-08-22 2004-03-11 Hitachi Ltd ミリ波レーダ
JP2007057483A (ja) * 2005-08-26 2007-03-08 Hitachi Ltd ミリ波レーダ装置
JP2007240358A (ja) * 2006-03-09 2007-09-20 Honda Motor Co Ltd 車両用外装部品

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003243920A (ja) 2002-02-18 2003-08-29 Mitsubishi Electric Corp レドーム
JP2004312696A (ja) * 2003-03-24 2004-11-04 Hitachi Ltd ミリ波レーダおよびその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001127523A (ja) * 1999-10-29 2001-05-11 Mitsubishi Electric Corp レドーム付きマイクロストリップアレーアンテナ
JP2004077399A (ja) * 2002-08-22 2004-03-11 Hitachi Ltd ミリ波レーダ
JP2007057483A (ja) * 2005-08-26 2007-03-08 Hitachi Ltd ミリ波レーダ装置
JP2007240358A (ja) * 2006-03-09 2007-09-20 Honda Motor Co Ltd 車両用外装部品

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220146622A1 (en) * 2019-02-06 2022-05-12 Metawave Corporation Method and apparatus for electromagnetic transmission attenuation control
CN113138368A (zh) * 2020-01-20 2021-07-20 华为技术有限公司 一种雷达装置和移动平台
CN111641017A (zh) * 2020-05-28 2020-09-08 深圳市晓控通信科技有限公司 一种安全性高的天线

Also Published As

Publication number Publication date
US9502760B2 (en) 2016-11-22
US20150123872A1 (en) 2015-05-07
JP5953969B2 (ja) 2016-07-20
JP2013257275A (ja) 2013-12-26

Similar Documents

Publication Publication Date Title
JP5953969B2 (ja) レーダ装置
CN104487862B (zh) 雷达装置
US10644408B2 (en) Antenna apparatus
JP6363528B2 (ja) レーダ装置搭載構造
JP5661423B2 (ja) レーダ装置
JP6643203B2 (ja) レーダ装置
JP2019158592A (ja) アンテナ装置
JP2016006411A (ja) ミリ波用アンテナ及び車載用レーダ装置
WO2017204059A1 (ja) レーダ装置
US20240243465A1 (en) Antenna device for automotive radar applications
JP2017129418A (ja) 車両
US20170274832A1 (en) Windshield including vehicle-mounted radar
JP2005249659A (ja) レーダ装置用送受信アンテナ
JP2017181480A (ja) 車載レーダを備えたウィンドシールド
WO2014069658A1 (ja) 高周波モジュール
JP2007235287A (ja) 車載用電波レーダ装置
WO2016002832A1 (ja) レドームを備えるアンテナ装置
US12300881B2 (en) Radar device
US20240069155A1 (en) Radar apparatus
EP3920329B1 (en) Antenna device
KR101556903B1 (ko) 안테나 어셈블리 및 이를 구비한 탑재체
JP2007104199A (ja) 電磁波透過性部品及び、物体検知システム
JP7567506B2 (ja) 電波吸収体および電波吸収体の形成方法
JP2022027059A (ja) レーダ装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13803551

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 14407809

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13803551

Country of ref document: EP

Kind code of ref document: A1