JP2025501215A - レーダ再帰反射デバイスへの電磁吸収体の適用 - Google Patents

レーダ再帰反射デバイスへの電磁吸収体の適用 Download PDF

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Publication number
JP2025501215A
JP2025501215A JP2024539429A JP2024539429A JP2025501215A JP 2025501215 A JP2025501215 A JP 2025501215A JP 2024539429 A JP2024539429 A JP 2024539429A JP 2024539429 A JP2024539429 A JP 2024539429A JP 2025501215 A JP2025501215 A JP 2025501215A
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JP
Japan
Prior art keywords
incident
electromagnetic
major surface
antenna array
electromagnetic absorber
Prior art date
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Pending
Application number
JP2024539429A
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English (en)
Japanese (ja)
Other versions
JP2025501215A5 (enExample
Inventor
キム，ジェウォン
ピー． ジョンストン，レイモンド
ジェイ． サリバン，ジョン
ティー． ブロヴォルド，シャウン
シー． メッシーナ，マシュー
ディー． ホイル，チャールズ
エル． スミス，ケネス
ゴーシュ，ディパンカー
ル，ツォンファ
エー． サイナティ，ロバート
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.)
3M Innovative Properties Co
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3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of JP2025501215A publication Critical patent/JP2025501215A/ja
Publication of JP2025501215A5 publication Critical patent/JP2025501215A5/ja
Pending legal-status Critical Current

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    • 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
    • H01Q1/27—Adaptation for use in or on movable bodies
    • 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
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/528—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the re-radiation of a support structure
    • 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
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • 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
    • H01Q17/004—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using non-directional dissipative particles, e.g. ferrite powders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0037—Particular feeding systems linear waveguide fed arrays
    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2647—Retrodirective arrays
    • 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

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)
  • Aerials With Secondary Devices (AREA)
JP2024539429A 2021-12-30 2022-12-29 レーダ再帰反射デバイスへの電磁吸収体の適用 Pending JP2025501215A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202163266185P 2021-12-30 2021-12-30
US63/266,185 2021-12-30
PCT/IB2022/062884 WO2023126876A1 (en) 2021-12-30 2022-12-29 Electromagnetic absorber application to radar retroreflective devices

Publications (2)

Publication Number Publication Date
JP2025501215A true JP2025501215A (ja) 2025-01-17
JP2025501215A5 JP2025501215A5 (enExample) 2026-01-08

Family

ID=86998328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024539429A Pending JP2025501215A (ja) 2021-12-30 2022-12-29 レーダ再帰反射デバイスへの電磁吸収体の適用

Country Status (5)

Country Link
US (1) US20240421477A1 (enExample)
EP (1) EP4457902A4 (enExample)
JP (1) JP2025501215A (enExample)
KR (1) KR20240130709A (enExample)
WO (1) WO2023126876A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12531338B2 (en) * 2024-06-28 2026-01-20 T-Mobile Innovations Llc Reflector array for non-line-of-sight coverage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5583507A (en) * 1995-04-19 1996-12-10 Martin Marietta Corporation Passive identification of friend vs. foe apparatus and method
CN103001005B (zh) * 2012-10-25 2014-12-17 中兴通讯股份有限公司 降低电磁辐射比吸收率的装置及移动终端
US10074907B2 (en) * 2015-03-12 2018-09-11 Veoneer Us, Inc. Apparatus and method for mitigating multipath effects and improving absorption of an automotive radar module
US10270508B2 (en) * 2017-09-21 2019-04-23 Verizon Patent And Licensing Inc. Retro-directive metamaterial array antenna system
US11121463B2 (en) * 2018-12-14 2021-09-14 Southwest Research Institute Van Atta antenna array with patch elements and substrate integrated waveguide
CN115335487B (zh) * 2020-03-31 2024-03-08 3M创新有限公司 导热电磁吸收材料

Also Published As

Publication number Publication date
KR20240130709A (ko) 2024-08-29
US20240421477A1 (en) 2024-12-19
EP4457902A4 (en) 2025-12-24
EP4457902A1 (en) 2024-11-06
WO2023126876A1 (en) 2023-07-06

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