摘要
本文利用拱形作为差分网格基本单元提出了一种适合于研究圆柱形导波结构色散特性的全波分析方法——柱面坐标中的二维时域有限差分法(CC—FD—TD方法)。文中较为详细的讨论了基本原理,并以分析同轴线为例证实了这一方法的可靠性。最后利用这一数值方法研究了不同导带宽度的微带线的色散特性。
In this paper,a full—mode method for the analysis of dispersion characteristics of the cylindrical guiding wave structure,which is called the two dimensional FD—TD method in cylindrical coordinate system,is developed by using the arc as the difference cell.The basic theory and treatment of this method are discussed in detail and it is proved reliable and convegent by calculating the dispersion of a co—axial line.In the last the dispersion of cylindrical microstrip lines with different width of metal stuip are study.
出处
《微波学报》
CSCD
北大核心
1993年第2期12-17,共6页
Journal of Microwaves
关键词
微带线
圆柱形
导波结构
时域分析
Numerical Method
FD—TD Method
Cylindrical guiding wave structure
Microstrip
Disperion
