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基于储能的超宽带天线分析与设计

Analysis and Design of Ultra-Wideband Antenna Based on Stored Energy
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摘要 针对指导设计超宽带天线方法严重匮乏的现状,根据储能思想指导设计了一款超宽带天线.首先,给出了天线的等效电路模型,研究了天线的地板、贴片和馈线的尺寸对天线带宽的影响;之后,从能量方面进行了物理解释.在此分析研究的基础上,通过差分进化算法设计了一款超宽带天线.该天线工作在3~20GHz,覆盖了FCC规定的超宽带频段(3.1~10.6GHz).最后将天线加工成实物,并进行测试,测试结果和仿真结果基本吻合,证明了该方法的正确性和有效性. In view of the serious shortage of designing methods of ultra-wideband (UWB) antenna, the stored energy of antenna is studied to design UWB antenna. Firstly, the equivalent circuit model of a mi- crostrip antenna is given in this paper. The effects on antenna performance of the size of the antenna's ground plane, patch and microstrip line are studied. Then, the results are explained in terms of the stored energy of the antenna. On the basis of the theoretical analysis, a ultra wideband antenna is designed with differential evolution algorithm. It operates from 3 to 20 GHz, covering the entire UWB band (3.1-10.6 GHz) specified by FCC. Lastly, the antenna is fabricated and measured. Measured results agree well with the simulations, which proves the correctness and effectiveness of the method.
出处 《上海交通大学学报》 EI CAS CSCD 北大核心 2017年第5期619-627,共9页 Journal of Shanghai Jiaotong University
基金 总装备部预研基金(51333020201)资助项目
关键词 超宽带天线 地板 贴片 馈线 储能 等效电路 差分进化算法 ultra-wideband antenna ground plane patch microstrip line stored energy equivalent cir-cuit differential evolution algorithm
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