结构波导的WKB方法
WKB approach for structured waveguides
摘要：
的近似方法，它可以被认为是一个模拟的WKB方法的发展的结果，提出。这种方法可以将结构波导中的电磁场分解为前向和后向分量，从而简化了场特性，特别是相位分布的分析。通过比较近似方程组的解与一般方程组的解，估计了该方法的精度。为此，编写了一个特殊的代码，将所提出的方法与早期开发的更准确的方法相结合。这种比较的结果表明，建议的近似方法的准确性与群速度梯度的部分，类似于SLAC部分，是约1%。
英文摘要：
The results of the development of an approximate approach, which can be considered as an analogue of the WKB method, are presented. This approach gives possibility to divide the electromagnetic field in structured waveguides into forward and backward components and simplify the analysis of the field characteristics, especially the phase distribution. The accuracy of this method was estimated by comparing the solution of the approximate system of equations with the solution of the general system of equations. For this, a special code was written that combines the proposed approach with the more accurate one developed earlier. The results of this comparison showed that the accuracy of the proposed approximate approach for sections with group velocity gradients, similar to the SLAC section, is about 1%.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
