首页> 外文会议>Asia-Pacific conference on environmental electromagnetics >COMMON-MODE INDUCTANCE AND RADIATION OF EDGE PLACED DIFFERENTIAL TRACES ON PRINTED CIRCUITED BOARD
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COMMON-MODE INDUCTANCE AND RADIATION OF EDGE PLACED DIFFERENTIAL TRACES ON PRINTED CIRCUITED BOARD

机译:边缘的共模电感和辐射放置在印刷电路板上的差分迹线

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With respect to the single-ended trace, differential signaling is much advantageous to the signal integrity and common-mode radiation level reduction. However, to guarantee the required signal transmission, the two traces in the differential pair should be perfectly balanced. Edged placement of a differential pair on the PCB causes balance disruption and creates common-mode (CM) currents resulting in an increased electromagnetic interference level. In this work, the CM inductance and radiation from differential traces with edge placement are quantified. The common-mode inductance of edged-placed differential pair on PCB is derived. Then the characteristics of the common-mode inductance of differential pair are studied for different geometries. Finally, the total radiation powers for several geometries due to the edge placement of the differential-pair are measured.
机译:关于单端迹线,差分信令对信号完整性和共模辐射水平降低有利。但是,为了保证所需的信号传输,差分对中的两个迹线应完全平衡。在PCB上的差分对放置在PCB上导致平衡中断并产生共模(CM)电流,导致增加的电磁干扰水平。在这项工作中,量化具有边缘放置的差分迹线的CM电感和辐射。推导了PCB上的边缘放置差分对的共模电感。然后研究了不同几何形状的差分对的共模电感的特征。最后,测量由于差分对的边缘放置引起的几几何图中的总辐射功率。

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