偏心特种截面传输线特性阻抗的分析计算
ON THE CHARACTERISTIC IMPEDANCE OF TRANSMISSION LINES OF SPECIFIC CROSS-SECTION WITH OFFSET INNER CONDUCTORS
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摘要: 本文提出了计算偏心特种截面传输线特性阻抗的部分模拟电荷法。由于外导体边界1上的边界条件准确满足,所以这种方法精度较高、且计算量小。文中提出用高斯列主元消去法与最优化方法相结合的技术求解模拟电荷方程组,是提高精度和保证收敛的一种有效算法。文中给出了外导体边界1为圆形、椭圆形、矩形、槽形和平板形五类传输线的Green函数,且对特性阻抗值进行了计算。Abstract: The partial charge-simulation method is presented to solve the characteristic impedance of transmission line of specific cross-section with offset inner conductors. This method has a higher accuracy due to the accurate satisfaction of the boundary condition on the outer conductor. The combined method of gnass elimination and optimization is used to solve the equation of charge-simulation, and it is an effective method for increasing the accuracy and assuring the convergence. The Green's functions of five transmission lines (i.e.with circular, elliptic, rectangular, trough and slab outer conductor) are given.
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