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Direct computation of multiconductor transmission line capacitance and charge distribution

The Journal of China Universities of Posts and Telecommunications 2009年第5期16卷 119-124页

作者： XU Jun LU Ying-hua ZHANG Li-kun School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing 100876 China The Translation Department of the Second Artillery Troops of PLA Beijing 100820 China

The per-unit-length capacitance parameter of multiconductor transmission line （MTL） is commonly extracted with indirect matrix transform method, which is complex and time-consuming. To solve the problem, an improved method to directly compute the MTL capacitance is proposed, which can be applied in the transmission line structure with arbitrary shaped cross-section and arbitrary separate distance. This method imports voltage conversions and matrix operations to simplify the complexity, improves computational efficiency by about 600% with results as accurate as previous method. The novel method presents a clear charge distribution map of MTL, whereas precious method will experience a tortuous process to get charge distribution.

关键词： multiconductor transmission line capacitance matrix charge distribution

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One modified method of characteristics used to analyze the multiconductor transmission lines

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Journal of Systems Engineering and Electronics 2006年第1期17卷 65-70页

作者： Fu Jiwei Hou Chaozhen Dou Lihua Dept. of Automatic Control School of Information Science and Technology Beijing Inst. of Technology Beijing 100081 P.R. China

To solve the coupling effect of multiconductor transmission lines excited by external electromagnetic wave, the modified method of characteristics is proposed. The modified method of characteristics which can compute the terminal induced voltages excited by the external electromagnetic wave when the terminal networks or intereonnection networks contain the dynamic elements is introduced. The simulation results indicate that the modified method can analyze the terminal induced voltages when the terminal networks or the interconnection networks contain the dynamic elements excited by the external electromagnetic wave. And the results are compared with the results acquired by FDTD method, the two results are completely same. So one effective modified method is implemented to compute the transmission lines.

关键词： multiconductor transmission line the method of characteristics dynamic elements.

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