一种新颖的垂直宽边耦合带状线设计方法

A novel design method of vertical broadside-coupled striplines

提出一种新颖的垂直宽边耦合带状线设计方法.运用合成渐近法推导出第一类完全椭圆积分的反演公式,所得表达式简单、精确,且物理内涵清晰.将所得k公式应用于垂直宽边耦合带状线(VBCSL)设计中,给出其结构参数的计算方法.经实际算例验证发现,文中所得公式的计算结果与已有文献结果相比,其平均误差小于2%.

A novel design method of vertical broadside-coupled striplines is presented. First, an inverse formula of first-category complete elliptic integral is derived with synthetic asymptote method. The obtained expression is simple, accurate, and gives clear physical insights. Then, the obtained k-formula is successfully employed for designing the vertical broadside-coupled striplines （VBCSL） so as to given the computation method of its structural parameters. Finally, it is found by a practical numerical example that the average error of the computation result with obtained formula in this article will be less than 2% when compared with analysis result of available literatures.