摘要
通过HFSS(high frequency structure simulator)电磁场仿真软件建立了有源球形偶极子辐射天线结构模型,并对其尺寸进行了优化.借助MATLAB软件对比分析了天线直径降为80mm时结构优化对天线性能的影响.仿真结果表明:将双锥与球体相结合,较理想尺寸为80 mm,其覆盖频段30 MHz～1GHz,有效改善了天线结构,解决了天线小型化后低频增益偏低的问题.
By HFSS,an electromagnetic simulation software,the spherical dipole radiating antenna structure model is established and its size is also optimized.Using MATLAB software maps,it analyzes the influence of the miniaturization antenna when its size is 80 mm.Experimental results show that,combining double cone and sphere,with the ideal antenna size 80 nm,the frequency bands with 30 MHz-1 GHz can be covered.Therefore the antenna structure is effectively improved and the problem of low-frequency gain is solved after miniaturization.
出处
《扬州大学学报（自然科学版）》
CAS
北大核心
2013年第2期52-56,共5页
Journal of Yangzhou University：Natural Science Edition
基金
国家自然科学基金资助项目(51207072)
关键词
偶极子天线
小型化
天线方向图
增益
天线结构
dipole antenna
miniaturization
antenna pattern
gain
antenna structure
