車載用プリント配線基板上の平行2配線とそのグラウンドパターンの幾何学的配置関係がFM帯クロストーク特性に及ぼす影響の評価手法

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2015/01/01

タイトル(英語): An Evaluation Method on Effect of Geometrical Configuration to FM-Band Cross-Talk Characteristics between Two Parallel Signal Traces including their Divided Ground Patterns on Printed Circuit Boards for Vehicles

著者名: 飯田　導平（（株）デンソー），前野　剛（（株）クオルテック），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 (Qualtec Co., Ltd.), 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PCB，分割グラウンド，平行2配線間クロストーク，相互インダクタンス，幾何学的平均距離　　vehicle-mounted PCB，divided ground，cross-talks between two parallel signal traces，mutual inductance，geometrical mean distance

要約(英語): Electromagnetic disturbances in vehicle-mounted FM radios are mainly caused by conducted noise currents flowing through wiring-harnesses from printed circuit boards (PCBs) with the slits of ground patterns. To suppress these kinds of noise currents from PCBs, we previously performed the FDTD simulation and measurement using plural simple two-layer PCB models in which the ground patterns were divided into two parts with different widths, and revealed that the both results agreed well with the fact that the cross-talk cannot always be reduced by widening the width of divided ground patters but had the smallest values (dipping point) at specific space between the divided ground patterns. In order to clarify the above result, we calculated cross-talks using a formula developed from a simplified equivalent circuit model consisting of inductances, which were derived from their geometrical mean distance for the traces and ground patterns, and found that the calculation results also had the dipping point however the specific space and cross-talk values were different from the simulations and measurements. In the present study, to improve the calculation accuracy, we considered the non-uniformity of current distribution on the ground patterns instead the uniform current distribution, and obtained the evaluated cross-talk results which agreed better with simulations and measurements.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.135 No.1 （2015）

本誌掲載ページ: 2023/09/16 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/ieejfms/135/1/135_9/_article/-char/ja/