PAGE\*MERGEFORMAT45南京师范大学毕业设计（论文）（届）题目：基于C型槽天线的研究学院：物理科学与技术学院专业：通信工程姓名：学号：指导教师：南京师范大学教务处制摘要微带天线由于重量轻、制作简单、成本低等诸多优点,特别适合应用于各种移动地面设备,以及飞行载体电子设备。但微带贴片天线同时具有阻抗带宽窄、增益低的缺点。这些缺点大大限制了它的应用范围。近些年来，随着通讯设备的发展，对天线的性能提出了更高的要求，因此迫切需要对微带天线进行新技术的研究。本文设计出了一种C型槽天线，改变了传统贴片天线阻抗带宽窄的缺点,在较小体积的条件下实现展宽带宽的目的。通过分析研究C型槽线谐振特性，选取合适的馈电方式，利用仿真软件HFSS对该天线的参数进行了仿真和优化。研究相关几何结构尺寸的改变对C型槽天线电性能的影响，探讨槽天线的基本设计原理及其多频、宽带、小型化的设计技术。根据仿真结果最后设计出了基于2.4GHz和5.8GHz为工作频率的C型槽天线，这两个频率段又分别是WLAN的工作频率段，所以可以将天线适用于无限局域网。关键词：微带天线槽天线谐振点C型槽AbstractThemicrostripantennahavebeenwidelyusedbecauseoftheirgoodcharacteristics,suchaselectricallythin,lightweight,lowcostandsoon.However,theelectricalperformanceofthebasicmicrostripantennasuffersfromanumberofseriousdrawbacks,includingnarrowbandwidth,highfeednetworkandlowgain.Astherapidlydevelopingofmarkets,suggestthatthedemandformicrostripantennaswillincreaseevenfurther.Inthemeantime,itcallsforthedevelopmentofmultiband.ThispaperpresentsaC-slotantenna.Itovercomesthedisadvantageofthetraditionalpatchantennasuchasimpedancebandwidth.Sothepurposeofexhibitingwidebandwidthcanbeachievedinsmallsize.ByanalyzingtheresonantcharacteristicsofC-slotantennaandselectingasuitablefeedingmethod.TheparameteroftheantennaissimulatedusingHFSSandthesizeoftheantennaisoptimizedaccordingly.Inthispaper,westudytheinfluenceontheperformanceaccordingtothechangeofthegeometricstructureanddiscusstheprinciplesoftheantennaandthedesigntechnologyoftheslotwiththeperformanceofmulti-frequency,widebandandminiaturization.Accordingtothesimulatedresults,wedesigntheC-slotantennabasedon2.4GHzand5.8GHz,whichareworkingfrequencybandofWLAN,soitcanbeappliedtoWLANnet.Keyword：MicrostripAntennaslotantennaTheantennaresonanceC-slot目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc388794660"摘要PAGEREF_Toc388794660\h1HYPERLINK\l"_Toc388794661"AbstractPAGEREF_Toc388794661\h2HYPERLINK\l"_Toc388794662"第一章绪论PAGEREF_Toc388794662\h5HYPERLINK\l"_Toc388794663"1.1微带天线的背景及研究意义PAGEREF_Toc388794663\h5