基于FDTD的宽带微带天线的研究  

A Study on Broadband Microstrip Antenna Based on FDTD Method

作　　者：车仁信[1] 程鑫[1] 纪颖[1] 

机构地区：[1]大连交通大学电气信息学院,大连116028

出　　处：《现代雷达》2006年第5期68-70,74,共4页Modern Radar

基　　金：铁道部专项资助项目(J2000Z052);辽宁省教育厅科学研究计划资助项目(2004D024)

摘　　要：用时域有限差分法(FDTD)对微带天线建模,用仿真软件emp ire获取数据,可以在宽频范围内观察微带天线的辐射过程,方便的获得天线的输入阻抗、带宽和方向图等特性,利用M atlab对仿真数据进行后处理可以得到方向性系数等参数。文中用该方法设计了一个中心频率为10.37 GHz,相对带宽21.7%的宽带微带天线,得到了较好的参数。为工程实际中微带天线的设计与分析提供了参考。The model is constructed by using finite-different time-domain（ FDTD） method,and the data are obtained with software empire. By using it, we may observe the process of the microstrip antenna radiation within the broadband range,and may easily get the input impedance, bandwidth and radiation pattern of the antenna. Then we may get the directivity coefficient of the antenna after processing the simulation data by using Matlab. paper designs a microstrip antenna whose centric frequency is 10.37 GHz and relative bandwidth is 20.7% ,have received better parameter. Design and analysis of the microstrip antenna to the engineering practice have offered reference.

关 键 词：时域有限差分法 宽带微带天线 仿真 FDTD 

分 类 号：TN822[电子电信—信息与通信工程]