基于Matlab和矩量法的Sierpinski分形天线仿真与分析  

Simulation and Analysis of the Sierpinski Fractal Antenna Based on Matlab and MoM

作　　者：赵宗坤[1,2] 杨河林[1] 

机构地区：[1]华中师范大学物理学院 [2]武汉工业学院工商学院基础课部

出　　处：《电子技术（上海）》2011年第5期12-14,共3页Electronic Technology

基　　金：武汉工业学院工商学院校级科研项目(2010KY05)

摘　　要：Sierpinski分形天线的结构具有自相似性,从而使其具有良好的多频性。文章基于Matlab和矩量法对张角为60°、分形阶为2的Sierpinski蝴蝶结分形天线进行了仿真,计算并分析了输入电阻、输入阻抗、反射系数和增益等天线特性,分别从仿真和实测角度比较了该天线在张角不同的情况下的谐振频率分布,得到了谐振点频率会随着天线张角变化而变化的结论,为设计特定频率下工作的分形天线提供了可能。The structure of the Sierpinski fractal antenna is self-similar,so it has a good multi-band characteristics.Based on Matlab and the moment method,a Sierpinski bowtie fractal antenna with the fractal growth being 2 and the flare angle being 60°is simulated,and the antenna’s characteristics such as input resistance,input impedance,reflection coefficient,are calculated.The resonant frequency distribution of the antenna in different flare angles is compared from aspects of simulation and measured angles,respectively.It is concluded that the antenna’s every resonance frequency will change with its flare angle,so that it is possible to design a fractal antenna operated at specific frequency.

关 键 词：MATLAB 矩量法 SIERPINSKI 分形天线 电磁仿真 

分 类 号：TN82[电子电信—信息与通信工程]