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車載用プリント配線基板におけるグラウンドパターンサイズがFM帯平行2配線間クロストークにおよぼす影響

車載用プリント配線基板におけるグラウンドパターンサイズがFM帯平行2配線間クロストークにおよぼす影響

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カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2011/12/01

タイトル(英語): Size Effect of Ground Patterns on FM-Band Cross-Talks between Two Parallel Signal Traces of Printed Circuit Boards for Vehicles

著者名: 飯田 導平((株) デンソー),前野 剛((株) デンソー),王 建青(名古屋工業大学大学院),藤原 修(名古屋工業大学大学院)

著者名(英語): Michihira Iida (DENSO CORPORATION), Tsuyoshi Maeno (DENSO CORPORATION), Jianqing Wang (Graduate School of Engineering, Nagoya Institute of Technology), Osamu Fujiwara (Graduate School of Engineering, Nagoya Institute of Technology)

キーワード: 車載ラジオ妨害,スリット,平行2配線,クロストーク雑音  Electromagnetic disturbances in vehicle-mounted radios,slits,two parallel signal traces,cross-talk noise

要約(英語): Electromagnetic disturbances in vehicle-mounted radios are mainly caused by conducted noise currents flowing through wiring-harnesses from vehicle-mounted printed circuit boards (PCBs) with common slitting ground patterns. To suppress these kinds of noise currents, we previously measured them for simple two-layer PCBs with two parallel signal traces and slitting or non-slitting ground patterns, and then investigated by the FDTD simulation the reduction characteristics of the FM-band cross-talk noise levels between two parallel signal traces on six simple PCB models having different slitting ground or different divided ground patterns parallel to the traces. As a result, we found that the contributory factor for the FM-band cross-talk reduction is the reduction of mutual inductance between the two parallel traces, and also the noise currents from PCBs can rather be suppressed even if the size of the return ground becomes small. In this study, to investigate this finding, we further simulated the frequency characteristics of cross-talk reduction for additional six simple PCB models with different dividing dimensions ground patterns parallel to the traces, which revealed an interesting phenomenon that cross-talk reduction characteristics do not always decrease with increasing the width between the divided ground patterns.

本誌: 電気学会論文誌C(電子・情報・システム部門誌) Vol.131 No.12 (2011) 特集:電気関係学会東海支部連合大会

本誌掲載ページ: 2034-2039 p

原稿種別: 論文/日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/131/12/131_12_2034/_article/-char/ja/

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