HFSS矩形波导周期阵列天线的设计与研究
关键词 阵列天线 软件仿真 互耦 矩形波导
Title Design and Research of the rectangular waveguide periodic array antenna
Abstract
Array antenna is randomized by the rule that not less than two antenna
elements and through appropriate incentives to achieve a predetermined
radiation characteristics. Radiated electromagnetic of array antenna is
an antenna array consisting of the sum of each unit of the radiation field
(vector sum). The position of each unit and the amplitude and phase of each
feed current can be adjusted independently, which makes the array antenna
having various functions. This paper describes the working principle and
system metrics requirements of array antenna. Then simulated dipole
antenna array and a rectangular waveguide array antenna simulation cycle,
the antenna pattern on the mutual coupling between the array elements
observational study. On the basis of the simulation software, a design
period of the rectangular waveguide 20 × 20 array antenna, operating
frequency between 8-12GHz, come to its radiation pattern, gain, and the
design of the antenna array and associated simulation and optimization.
Keywords antenna array software emulation mutual coupling rectangular waveguide
目 录
1 绪论 1
1.1 研究背景及意义 1
1. 2 国内外研究现状 2
2 阵列天线基本理论5
2.1 引言 5
2.2 方向图乘积定理5
2.3 几种典型的阵列天线 7
2.3.1 二元阵 7
2.3.2 直线阵 7
2.3.3 矩形平面阵列 8
2.3.4 圆形阵列 9
3 互耦效应对阵列天线方向图影响分析10
3.1 阵列天线互耦概述 10
3.2 分析模型的建立12
3.3 运用 FEKO 软件仿真分析互耦13
4 运用 HFSS 软件模拟仿真矩形波导阵列天线20
4.1 HFSS 软件模拟仿真矩形波导直线阵20
4.2 20×20 矩形波导周期阵列设计与仿真23
4.2.1 单个 WR90 矩形波导天线的建立 24
4.2.2 20×20 矩形波导阵列的建立25
结论 28
致谢 29
参考文献30
1 绪论
1.1 研究背景及意义
天线发射、接收电磁能量，是一种发射和接收电磁波的变换设备。单个天线的方
向图较宽，增益和方向性也有限，往往无法满足现实生活中的一些应用需求。在现代
军事领域，通常要求天线具有很强的方向性及高增益低波束宽等一系列指标。为了满
足这些要求，这时就需要将多个天线按照一定的方式排列起来,以满足特定的指标,
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