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星型贴片天线阵列的参数优化和互耦分析
A Mutual Coupling Analysis and Parameters Optimization for a Star-shaped Patch Antenna Array
【Author】 L.L.Li;Z.X.Cao;Z.Sheng;State Key Laboratory of Millimeter Waves,Southeast University;
【机构】 毫米波国家重点实验室东南大学;
【摘要】 针对Chiu提出的星型贴片天线结构,基于HFSS电磁仿真软件建立了采用90度移相同轴双馈的圆极化微带星形天线模型,详细的分析了星形贴片结构参数对天线主要性能的影响。进一步建立了分别由星形贴片单元和传统的矩形贴片单元构建的两种二阵元模型,比较了两者在不同单元间距和不同介电常数时的互偶特性和远场辐射特性,结果表明Chiu提出的星形贴片天线天线构成的天线阵列并没有好的互偶特性和辐射特性。
【Abstract】 Based on the star-shaped patch antenna proposed by Chiu,a circularly polarized microstrip star-shaped antenna fed by two coaxial probes in quadrature is modeled by the HFSS software and effects of the patch structure parameters on its performances are simulated and analyzed in detail.Furthermore,both kinds of antenna arrays,consisting of the same two star-shaped patches as mentioned here and traditional rectangular patches respectively,are modeled and influences of the different spacing and dielectric constants on their mutual coupling and far filed radiation pattern are investigated,which shows that the so-called star-shaped antenna array has no remarkable improvement in mutual coupling and radiation pattern.
【Key words】 Mutual coupling; Microstrip antenna array; Star-shaped patch structure; Simulation analysis;
- 【会议录名称】 2013年全国天线年会论文集(上册)
- 【会议名称】2013年全国天线年会
- 【会议时间】2013-11-16
- 【会议地点】中国广东广州
- 【分类号】TN820
- 【主办单位】中国电子学会