基于SIW的串联缝隙天线阵列设计+matlab程序
本文介绍了一种矩形波导宽边四元中心斜缝天线的设计，简要阐述了宽边斜缝阵列天线的理论依据和设计原则。利用算得的参数，借助HFSS软件的参数扫描功能，通过局部地调整设计参数就可以方便地得到天线的谐振参数，并对天线进行了仿真分析。仿真结果表明，该天线在切割四个缝的情况下即能够实现设计指标的要求，且天线性能良好。9724
关键词：基片集成波导，宽边，斜缝，谐振阵。毕业设计说明书（论文）外文摘要
Title Anteanna Array Design of the Cascade Slot Based on SIW
Abstract
Substrate integrated waveguide or SIW is a quasi-waveguide structure,which can be realized on PCB and LTCC process and has the potential to replace traditional rectangular waveguide.In contrast with conventional waveguide structure,it takes the advantages of low profile,easy to fabricate and easy to be integrated with other integrated components etc.A slot array antenna can be realized by etching slots on the surface of a SIW.
The design of an antenna with four inclined slots in the broad face of rectangular waveguide and the theory of itare introduced in this paper. At the same time the principle of how to design a small antenna array of inclined slots in the broadface of rectangular waveguide is described briefly. The paper uses the determined parameters to found out the resonanceparameters easily with the help of parametric analysis function in HFSS and adjusting locally the design parameters, and thensimulation of the antenna is conducted in considering the coupling problem. The results of simulation indicate that this antennacan achieve the target request when the antenna is incised four slots, and it has a good performance.
Key words:Substrate integrated waveguide(SIW)， broad face， inclined slot，resonant array。
目 录
1 绪论 1
1.1 研究背景 1
1.2 天线基础理论 1
1.2.1 阻抗匹配 1
1.2.2 天线带宽 1
1.2.3 副瓣电平 2
1.3 本文研究目的及主要内容 2
2 基片集成波导器件设计基础 3
2.1 基片集成波导器件的结构 3
2.2 基片集成波导馈电的缝隙 4
2.3 电磁场分析软件在基片集成波导器件研究中的应用 4
2.4 本章小结 6
3 波导缝隙阵列天线研究现状和参数分析 6
3.1 波导缝隙天线阵理论 6
3.2 串联缝隙阵的模型 7
3.3 缝隙特性参数的分析 8
3.3 本章小结 10
4 基片集成波导谐振式缝隙阵列天线的设计 10
4.1 波导缝隙设计理论 10
4.2 空气填充矩形波导设计 11
4.2.1 空气填充单个缝隙研究 11
4.2.2 空气填充 1×4 阵列天线的设计 14
4.3 介质填充矩形波导设计 16
4.3.1 介质填充单个缝隙研究 16
4.3.2 介质填充 1×4 阵列天线的设计 18
4.4 误差分析 20
4.5 本章小结 20
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