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Inductive Coupling Estimation System Using Loop Current Model of Mounted Circuit Components

Research Project

Project/Area Number 20K04497
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionAkita University

Principal Investigator

Muroga Sho  秋田大学, 理工学研究科, 准教授 (60633378)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords磁気結合係数 / 磁界結合 / 近傍磁界計測 / 等価磁界源モデル / 機械学習 / EMC / 電磁環境工学 / クロストーク / 等価電磁界モデル / 波源推定 / 等価回路モデル / マイクロストリップ線路 / 誘導結合 / 等価回路
Outline of Research at the Start

プリント回路基板(PCB)の薄型・高密度化,高速・多周波数動作化に伴い,高周波素子や配線同士が電磁気的に結合しやすくなり,意図しない経路が各所で形成されている。その結果,誤動作や感度抑圧が発生している。本研究では,実装状態の素子や配線間の意図しない磁気結合を測定により把握するため,実装状態の高周波回路素子,配線のインピーダンスと近傍磁界を同時測定し,等価ループ電流モデルを構築し,それを用いて素子間の相互インダクタンスを推定する革新的なシステムを開発する。

Outline of Final Research Achievements

A novel estimation method of magnetic coupling coefficients between printed-circuit-board-level traces and components using a near field information was investigated and proposed. First, a simple one-turn loop current model with uniform current distribution was proposed as the equivalent magnetic source of the traces. The measured magnetic near-field distributions above the traces at 1 GHz were input to the trained classifier or regressor to estimate the geometry of the loop current models. Next, the magnetic coupling coefficient between two traces was estimated through calculating the coupled magnetic flux between the estimated loop current models. The magnetic coupling coefficients between the loop current models estimated by measured magnetic near-field distribution agreed with the coupling coefficients calculated by the full-wave simulation within 10%, which indicates the feasibility of estimating the magnetic field coupling by the proposed method.

Academic Significance and Societal Importance of the Research Achievements

本提案手法を利用すれば,高周波回路基板内の予期しない電磁結合を定量的に把握することが可能になる。さらに,配線や素子から漏洩する近傍磁界に関する情報を,等価磁界源モデル情報として保存し,情報を集めてデータベース化することが可能となる。今後の機器の小型化・高速化に伴い,配線・素子間の電磁結合を考慮した設計の必要性は大きくなると予想されている。本研究の成果は,次世代小型,高周波機器の試作のため活用することが可能であり,産業界に広く貢献できると思われる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Estimation of Noise Suppression in MSL With Co-Zr-Nb Film Considering Impedance Matching2022

    • Author(s)
      Mikami Takahiro、Muroga Sho、Tanaka Motoshi、Endo Yasushi、Hashi Shuichiro、Ishiyama Kazushi
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 58 Issue: 2 Pages: 1-5

    • DOI

      10.1109/tmag.2021.3087257

    • Related Report
      2021 Research-status Report
  • [Journal Article] Inductive Decoupling between Two Parallel MSLs using Co-Zr-Nb Film2021

    • Author(s)
      Muroga Sho、Tanaka Motoshi
    • Journal Title

      IEEJ Transactions on Fundamentals and Materials

      Volume: 141 Issue: 5 Pages: 301-305

    • DOI

      10.1541/ieejfms.141.301

    • NAID

      130008033203

    • ISSN
      0385-4205, 1347-5533
    • Year and Date
      2021-05-01
    • Related Report
      2021 Research-status Report
  • [Journal Article] Estimation of Circuit Parameters of Microstrip Lines Covered by Electromagnetic Noise Suppressors with Different Geometries2020

    • Author(s)
      Mikami Takahiro、Muroga Sho、Tanaka Motoshi
    • Journal Title

      IEEJ Transactions on Fundamentals and Materials

      Volume: 140 Issue: 12 Pages: 595-596

    • DOI

      10.1541/ieejfms.140.595

    • NAID

      130007948681

    • ISSN
      0385-4205, 1347-5533
    • Year and Date
      2020-12-01
    • Related Report
      2020 Research-status Report
  • [Journal Article] Effect of Complex Permeability on Circuit Parameters of CPW with Magnetic Noise Suppression Sheet2020

    • Author(s)
      Muroga Sho、Tanaka Motoshi、Yoshikawa Takefumi、Endo Yasushi
    • Journal Title

      IEICE Transactions on Communications

      Volume: ADVANCE ONLINE PUBLICATION Issue: 9 Pages: 899-902

    • DOI

      10.1587/transcom.2019mcp0002

    • NAID

      130007894665

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] An Estimation Method of Magnetic Coupling Coefficient between Two Microstrip Lines Using Machine Learning of Near Field Information2023

    • Author(s)
      Y. Sato, S. Muroga, H. Kamozawa, M. Tanaka
    • Organizer
      IEEE International Magnetics Conference (Intermag2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of Material Characteristics of Film-Type Noise Suppressor Using Equivalent Circuit Modeling and Genetic Algorithm2023

    • Author(s)
      T. Mikami, S. Muroga, M. Tanaka
    • Organizer
      IEEE International Magnetics Conference (Intermag2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 近傍磁界情報の機械学習による平行配線のループ電流モデル化に関する一検討2022

    • Author(s)
      佐々木太地,室賀翔,鴨澤秀郁,田中元志
    • Organizer
      2022年度 電気関係学会東北支部連合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 近傍磁界情報の機械学習を利用した平行配線間の磁気結合係数の推定2022

    • Author(s)
      室賀翔
    • Organizer
      エレクトロニクス実装学会 インテリジェント実装技術研究会 2022年度第2回公開研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Size Parameters Classification of Loop Current Model of PCB Traces by CNN of Magnetic Near-Field Distribution2022

    • Author(s)
      S. Muroga, T. Sasaki, H. Kamozawa, Y. Sato, T. Mikami, M. Tanaka
    • Organizer
      2022 Asia-Pacific Microwave Conference (APMC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MSLの近傍磁界マップの機械学習によるループ電流モデルの寸法パラメータ抽出に関する一検討2022

    • Author(s)
      佐々木太地,室賀 翔,鴨澤秀郁,田中元志
    • Organizer
      第36回 エレクトロニクス実装学会春季講演大会
    • Related Report
      2021 Research-status Report
  • [Presentation] A Study on Crosstalk Suppression and Insertion Loss in MSLs with Co-Zr-Nb Film2021

    • Author(s)
      Takuma Kobayashi, Takahiro Mikami, Sho Muroga, Motoshi Tanaka
    • Organizer
      The 9th International Conference on Materials Engineering for Resources 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Co-Zr-Nb膜を用いたクロストーク抑制素子の挿入損失の低減に関する検討2021

    • Author(s)
      小林拓真,室賀 翔,田中元志,遠藤 恭,枦修一郎,石山和志,直江正幸
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Co-Zr-Nb膜の複素透磁率によるマイクロストリップ線路間のクロストークへの影響2021

    • Author(s)
      小林拓真,室賀 翔,田中元志,遠藤 恭,枦修一郎,石山和志,直江正幸
    • Organizer
      電子情報通信学会 環境電磁工学研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] 平面型の電磁ノイズ抑制体を配置した平行2導体マイクロストリップ線路の伝送特性の測定2021

    • Author(s)
      武井佑允, 室賀 翔, 田中元志
    • Organizer
      電子情報通信学会電磁環境研究会EMCJ
    • Related Report
      2020 Research-status Report
  • [Presentation] 平面型の電磁ノイズ抑制体を配置した平行2導体マイクロストリップ線路の伝送特性の測定2020

    • Author(s)
      正木 信駿, 室賀 翔, 田中 元志
    • Organizer
      電子情報通信学会電磁環境研究会EMCJ
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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