天线是毫米波雷达系统的重要组成部分，最近十几年，随着对雷达抗干扰要求的提高，脉冲多普勒可视雷达的发展，要求天线应具有低副瓣或极低副瓣的性能，波导缝隙天线成为此项要求的优选形式。低副瓣天线主要分为阵列天线和反射面天线两大类。其中阵列天线可以实现波束全空域快速扫描，阵列天线已经被非常频繁得用于雷达系统中。64868

    缝隙天线是在导体面上开缝形成的天线，也称为开槽天线。典型的缝隙形状是长条形的，长度约为半个波长。缝隙可用跨接在它窄边上的传输线馈电，也可由波导或谐振腔馈电。这时，缝隙上激励有射频电磁场，并向空间辐射电磁波。。

本文以设计满足要求的Ku波段波导缝隙天线及其阵列天线为目的。首先通过查阅资料理解常用天线结构的设计方法，通过学习电磁仿真软件HFSS的基本应用，最后能够设计波导缝隙天线及其阵列，并且能够对设计出的天线及其阵列进行相关仿真与优化。

关键词：Ku波段   波导缝隙天线   全向天线   HFSS仿真

Title    The design and resersh of Ku-Band antenna                     

Abstract

Antenna is is an important part of the millimeter-wave radar system . In the past ten years, with the increasing demand for anti-jamming radar and the development of the pulse Doppler visual radar,it requires an antenna should have a low or very low sidelobe sidelobe performance , the waveguide slot antenna became the preferred form of this requirement. Low sidelobe array antenna and the antenna can be pided into two major categories of reflector antennas. Beam array antenna which can achieve full airspace quick scan array antenna has been very frequently was used in radar systems.

The slot antenna is formed on the conductive surface of the slit antenna, also known as slot antenna. The typical shape of the elongated slit, the length is about half a wavelength. Available across the gap on its narrow transmission line feed, but also by the waveguide or resonator feed. At this time, there are gaps on the excitation frequency electromagnetic fields, electromagnetic radiation to space. 

In this paper, designed to meet the requirements of its Ku-band waveguide slot antenna array antenna for the purpose. First, through access to information to understand the design of the antenna structure commonly used method of electromagnetic simulation software HFSS by learning the basic application, and finally be able to design and waveguide slot array antenna, and be able to design the array antenna and its associated simulation and optimization.

Key word: Ku-band    waveguide slot antenna  omnidirectional antenna  HFSS simulation

目录

第一章  绪论1

1.1选题的背景及意义1

1.2国外学者对波导缝隙天线的研究1

1.3国内学者对波导缝隙天线的研究2

1.4本课题主要研究目标及主要研究内容3

第二章 波导缝隙天线的基本原理4

2.1 波导缝隙天线简介4

2.1.1理想缝隙天线4

2.1.2 实际缝隙天线5

2.2波导缝隙天线分析5

2.2.1巴比涅原理5

2.2.2 波导缝隙天线的形式8

2.2.3缝隙的归一化等效导纳（阻抗）解析式10

2.3 缝隙阵列天线14

第三章  波导缝隙天线阵的仿真20

3.1缝隙天线的设计与分析20