(完整版)L型探针馈电的微带天线仿真设计_毕业设计.doc

L 型探针馈电的微带天线仿真设计中文摘要近年来，随着移动通信系统业务的不断增加，通信设备不断朝着小型化方向发展，同时对天线体积，集成化及工作频段的要求也越来越高重量轻，剖面低，成本低和易于集成的微带天线，受到大家的广泛的关注目前微带天线的主要限制还在于天线的狭窄经过数十年的发展，很多研究学者提出了拓展微带贴片天线带宽的方法， 其中采用 L 型探针馈电的方式得到了很多关注由于 L 型探针垂直部分及水平部分和贴片之间产生感抗和容抗， 两者相互作用产生谐振，使天线频带拓宽或者呈现多频带这使得 L 型探针馈电广泛应用于现代移动通信系统中本文介绍了微带天线的辐射原理及微波射频段电磁波的基本理论及 L 型探针馈电的微带天线文中依据理论分析以及数值计算相结合的方式设计出满足设计需要的微带天线并借助天线设计软件 HFSS 分析了 L 型探针水平段和竖直端长度对天线带宽的影响，在最后设计了一副进行仿真优化了的信号频段在 3.2~4.4GHz 的 L 型探针馈电的微带天线关键词：微带天线；容感性； L 型探针馈电； HFSS仿真The design and Simulation of antenna with L-shaped probefeedAbsractIn recent years,with the increasing number of mobile communication system,communication equipment developed towards miniaturization direction constantly,and the antenna size, and frequency requirements are also becoming more and more important.Light weight, with low profile,low cost and ease of integration by all of us.The major limitations of microstrip antenna now is the bandwidth of the antenna. After decades of development,a lot of research scholars proposed method to expand the bandwidth of the microstrip patch antenna,which adopts theL-shaped probe feed get a lot of attention.Because vertical section and of L-shaped probe createinductive reactance and capacitive reactance,and both of theminteract to produce resonance, this makes the antenna modern mobile communications system. This paper introduces the radiation principle of microstrip antenna and microwave radio frequency section of the basic theory of electromagnetic wave transmission and the antenna with L-shaped probe feed.Based on the basic theoryof microstrip antenna analysis andnumericalcalculation design a microstripantennameet the designneed,andanalysis the effect of the sizeof L-shaped probe on theantenna bandwidth with the aid of with simulation software HFSS.Inthe final,itdesigns a microstripantennawith L-shaped probe feedwhich the transmission signal frequency band in 3.2~4.4 GHz.KEYWORD ： Microstripantenna ； Shouldthe emotion ；L-shaped feed ； HFSS simulation目 录第一章绪论 ....................................................................................................................................11.1课题背景及研究意义 .......................................................................................................11.2微波天线的研究现状 .......................................................................................................21.3Ansoft HFSS 软件简介 ....................................................................................................31.4论文的主要工作 ...............................................................................................................4第二章微带天线概述 ....................................................................................................................42.1微带天线简介 ...................................................................................................................42.2微带天线主要特性参量 ...................................................................................................62.3微带天线的辐射机理及馈电方式.................................................................................112.3.1微带天线的辐射机理 ..........................................................................................112.3.2微带天线的馈电方式 ..........................................................................................122.4微带天线的分析方法 .....................................................................................................13第三章L 型探针馈电微带天线理论分析 .................................................................................153.1L 型探针馈电微带天线介绍 ..........................................................................................153.2微带天线基本模型 .........................................................................................................16第四章L 型探针馈电微带天线的仿真及结果分析.................................................................194.1天线的设计指标 .............................................................................................................194.2创建 L 型探针馈电微带天线模型 .................................................................................194.2.1创建天线模型的基本步骤 ..................................................................................194.2.2创建完成的天线模型 ..........................................................................................204.3天线模型仿真结果 .........................................................................................................224.4L 型探针馈电微带天线的优化设计及分析..................................................................234.4.1L 型探针馈电微带天线的优化分析...................................................................。