微带天线的基本理论和分析方法

开关电源模块并联供电系统

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ku波段双频微带天线的设计

电梯运行检测平台摘要

加工pcb板本文的主要工作是Ku波段宽带双频双极化微带天线研究。在微带天线的基本理论和分析方法的基础上，对微带天线的技术进行了深入的研究，设计了3种不同结构的Ku波段宽带双频微带天线单元，并完成了实验验证。依据传输线模型理论并结合软件仿真分析了3种不同结构的天线单元在天线的带宽、隔离度和增益等性能方面的差异，并作了比较，得出了性能最佳的一种天线单元结构形式。最后，对全文的研究工作加以总结，并提出本文进一步的研究设想。

关键词：Ku波段；双频；传输线模型；微带天线

玻璃防指纹油>粉末冶金烧结炉Abstract

In this paper, broadband dual-frequency and dual-polarized microstrip antenna at Ku band i

s described. Three kind s o f wideband dual-frequency and dual-polarized microstrip antenna element are proposed and their experimental verifications are completed which based o n the classical theory and a deeper stud y on broadband, dual-frequency and dual-polarization technique of microstrip antenna. From the transmission-line mode theory and simulative results, he bandwidth, isolation and gain characteristics of a microstrip patch element with various structures are analyzed in detail and compared, and an antenna element with the best performance is adopted. Based on the element described, four-element linear array and planar array is designed which adopted anti-phase feeding and dislocation anti-phase feeding technique, respectively. In addition, the technique of anti-phase feeding which suppress cross-polarized is further studied by using the even/odd theoretical analysis. Finally, we summarize the research of the paper with an outlook for the further researches.

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