时域有限差分法中金属薄板边缘场差分方程的修正  

The Modified Difference Equation Near the Sharp Metal Edge in FDTD Grid

作　　者：陈彬[1] 陆峰[1] 易韵[1] 陈海林[1] 周璧华[1] 裴玉玲 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《电子学报》2004年第6期1036-1038,共3页Acta Electronica Sinica

基　　金：国家自然科学基金 (No .60 1 72 0 0 2 ) ;教育部高校骨干教师资助项目

摘　　要：本文提出了一种时域有限差分法中金属薄板边缘场修正的差分方程 .以带状线和V形天线为例检验了修正的差分方程的有效性 ,数值结果表明 ,和金属板边缘阶梯近似相比 ,计算精度大大提高 .The modified difference equation near the sharp metal edge in FDTD grid is presented in this paper.In order to test the efficiency of new FDTD equations,we use a stripline and V-shape antenna,which have two sharp edges diagonal to the cell cube in FDTD grid.Compared with staircase approximation, a dramatic improvement in computed accuracy is observed.

关 键 词：金属边缘 时域有限差分法 带状线 

分 类 号：TN811[电子电信—信息与通信工程]