基于FDTD的非线性混合电路特性分析  

Analysis of the property of nonlinear hybrid circuit by FDTD

作　　者：梅诣偲[1] 吴先良[2] 黄志祥[1] 鲁思龙[1] 任信钢[1] 杜红梅[1] 

机构地区：[1]安徽大学电子信息工程学院,安徽合肥230601 [2]合肥师范学院物理电子系,安徽合肥230601

出　　处：《合肥工业大学学报（自然科学版）》2012年第10期1355-1358,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金重点资助项目(60931002;61101064);安徽省高校自然科学基金资助项目(KJ2011A002);安徽省杰出青年基金资助项目(1108085J01);安徽大学211工程学术创新团队基金资助项目(KJTD007A)

摘　　要：文章采用三维时域有限差分(FDTD)方法,对非线性混合电路进行了全波分析,不仅获得不同时刻微带电路平面的电磁场分布图,并且所获得的电压分布图与软件仿真结果高度吻合。由于FDTD是电磁场的全波模拟,所得结果比传统电路模拟精度高且可以得到高频信号激励下微带电路所在平面各个时刻时域内的场解,直接观测到场分布情况,为高频非线性混合电路的特性分析提供了有效依据,同时对研究电磁兼容等问题有重要意义。The full-wave analysis of nonlinear hybrid circuit is made by finite-difference time-domain （FDTD） algorithm, and the electromagnetic field distribution graph of microstrip circuits at different moments is obtained. The simulation result of FDTD method and that of commercial software are highly consistent. With full-wave simulation of electromagnetic field, its calculation results are more accurate than those of traditional circuit simulations, and the field value and distribution of electro- magnetic field of microstrip circuits at different moments responding to high-frequency signals can be obtained directly, which has important significance for researching the properties of high-frequency nonlinear hybrid circuits and the problems about electromagnetic compatibility and so on.

关 键 词：时域有限差分 电磁分布 非线性 集总元件 混合电路 

分 类 号：TN455[电子电信—微电子学与固体电子学]