搜索
题目切比雪夫带通滤波器设计学生姓名刘帅学号1213014027所在学院物理与电信工程学院专业班级电子1201班指导教师聂翔完成地点陕西理工学院2016年6月1日陕西理工学院毕业设计报告切比雪夫带通滤波器设计作者:刘帅(陕西理工学院物理与电信工程学院电子信息工程专业12级1班，陕西汉中723000)指导老师：聂翔[摘要]本文主要介绍基于ADS2011环境下设计和优化一种切比雪夫带通滤波器的方法。设计中采用平行耦合微带线。报告详细介绍了具体的实现步骤，对设计的滤波器进行仿真、优化、生成版图，优化前原理图仿真结果显示S（2.1）在912.5MHz处和977.5处衰减分别为-47.283dB和-71.214dB，通带内插入损耗为3.58dB,中心频率为936.1MHz,S（1.1）中回波损耗-39.604dB。优化后的仿真结果显示：S（2.1）在912.5MHz和977.5MHz处衰减分别为-62.255dB和-60.876，中心频率为944.9MHz，插入损耗在1.93dB,回波损耗较以前也有所减小，以上表明设计方法正确优化成功。[关键词]ADS；带通滤波器；耦合微带线；仿真；插入损耗陕西理工学院毕业设计报告ThesimulationofChebyshevpassbandfilterdesignLiuShuai(Grade12,Class1,Majorelectronicsandinformationengineering,ElectronicsandinformationengineeringDept,shaanxiUniversityofTechnology,Hanzhong,72300,Shaanxi)Tutor：NieXiangAbstract:ThispaperisdescribedthedesignandoptimizationmethodofChebyshevbandpassfilterbasedonADS2011.Parallelcoupledmicrostriplinesareusedinthedesign.Reportdetailsthespecificimplementationsteps,thedesignoffiltersimulation,optimization,layoutgeneration,optimizationofschematicsimulationresultsshowthats(2.1)inthe912.5MHzand977.5atattenuationwere-47.283dBand-71.214dBthroughbandinsertionlossforthe3.58dB,centerfrequencyforthe936.1MHzs(1.1)returnloss-39.604dB.OptimizedsimulationresultsindicatethattheS(2.1)inthe912.5MHzand977.5MHzattenuationwere-62.255dBand-60.876,centerfrequency944.9MHz,insertionloss1.93dB,returnlossthanbeforealsohasdecreased,suggestingthatdesignmethodiscorrectandthesuccessoftheoptimization.Keyword:ADS；Bandpassfilter;Coupledmicrostripline;Simulation;Insertionloss陕西理工学院毕业设计报告目录1.引言................................................................................................................................................11.1滤波器的研究背景及意义....................................................................................11.2滤波器的发展趋势及现状....................................................................................11.3ADS软件介绍..................................................................................................................22.滤波器基本理论...................................................................................................................32.1滤波器基础知识..........................................................................................................32.2滤波器的分类...............................................................................................................32.3滤波器的设计指标....................................................................................................52.4四种滤波频率的转换...............................................................................................52.4.1低通滤波器与低通原型的转换............................................................52.4.2高通滤波器与低通原型的转换............................................................62.4.3带通滤波器与低通原型的转换............................................................62.4.4带阻滤波器与低通原型的转换............................................................72.5微波网络参数...............................................................................................................83.微波传输线..............................................................................................................................93.1带状线...............................................................................................................................93.2微带线...............................................................................................................................93.2.1耦合微带线.......................................................................................................93.2.2耦合微带线特性.........................................................................................103.3微带线基本参数设计.............................................................................................104滤波器的设计与优化.......................................................................................................12陕西理工学院毕业设计报告4.1设计方案........................................................................................................................124.2带通滤波器的参数设计........................................................................................124.3微带线带通滤波器设计流程图.......................................................................134.4微带线带通滤波器的设计和过程..................................................................134.4.1滤波器设计指标要求...........................................................................134.4.2微带线参数计算..........................................................................................144.5原理图仿真和优化..................................................................................................154.5.1原理图绘制.....................................................................................................154.5.2原理图仿真.....................................................................................................194.5.3原理图优化.....................................................................................................224.6版图生成...........................................................................