HFSS的915MHz微带天线设计仿真
HFSS的915MHz微带天线设计仿真微波DA|专注于微射抓硬件工程师的培www.mweda.com提供最专业的ADS、HSS培训课程指标要求。若进一步考虑引入阻抗匹配馈线对天线谐振频率的影响,根据之前已仿真的结果,将贴片辐射元长度调整为74.2mm时,天线在915MHz频段表现出最佳的性能,如图3、图4所示。图1侧边馈电矩形微带贴片天线模型Armo CaponeXY Plot 1LP LIPE-田2天线模型仿真结果1(S1)Am秀 OpinionRadiation Paten 1P unnc s以nommretrtaa图3天线模型仿真结果( Directivity)Armo CorporaonXY Plot 1LP_LhoFood Sre台 urpim upet500图4天线模型仿真结果2(S1)微波DA|专注于微射抓硬件工程师的培www.mweda.com提供最专业的ADS、HSS培训课程3结论从上述仿真结果可知,选择介电常数44厚度5mm的介质基板材料,贴片辐射元尺寸为998mm74.2mm,四分之一波长阻抗匹配变换器尺寸为47.3mm×3.7m时,天线中心谐振频率在915MHz附近,工作频率点辐射主瓣E面波瓣宽度63:=84°,H面波瓣宽度θ3s=97°,天线增益Gain=325(dB)(辐射效率η=0.5),回波损耗S1=-31.77(dB)(WSWR=1.05),阻抗匹配良好,系统带宽B4=1.5%(以S11≤-14dB标准为参考),天线主平面尺寸18.2cmx13.2cm,天线各项设计指标达到预定的工程设计要求。本文所讨论的采用软件仿真验证与优化的方式相比传统实物制作并测试的方式,极大地缩减了现代天线从设计到调整实现所需的时间和成本,在工程设计上将有着广泛的应用。[参考文献][1] Stutzman Warren L, Thiele Gary A. Antenna Theory and Design( Second Edition)[M]. Beijing POST TELECOM PRESS2006,[2] Bahl I J, Bhartia P.微带天线[M].北京:电子出版社,1984[3]谢拥军,刘莹,李磊HFSS原理与工程应用[M].北京:科学出版社,2009[4]张均,刘克诚张贤铎.微带天线理论与工程M].北京国防工业出版社,198[5]钟顺时微带天线理论与应用[M].西安:西安电子科技大学出版社,1991[6]宋旭亮矩形微带天线设计与阻抗匹配网络[D].大连:大连海事大学,2008【贵任编辑:刘长青】Simulation and Verification of 915 MHz Microstrip Antenna Design Based on HFSSWU Zhi-xiong WANG HongFujian Polytechnic of Information Technology, Fuzhou, Fujian, 350003, China)Abstract: This paper introduces the processes of engineering design and simulation verification of the rectangle microstrip patch antenna working in 915 MHz Frequency by using the computer electromagnetic simula-tion software HFSS. The authors first estimate the designing parameters through the classical transmission linetheory, and then follow the steps of modeling and simulation on the software. Finally, get best results for the de-signing by optimal adjustment, while the antenna achieves its best performance indexes in the condition givenout beforeKey words: HFSS; microstrip antenna; antenna design; electromagnetic simulation8袋R足①A皆揉本队、八年轻积累m寺注于做被。射频。研件工程师的培养微波网视频培训教程推荐微波网成立于年底,并于翌年与易迪拓培训合并,专注于微波、射频和硬件⊥程师的培养,现已发展成为国内最大的微波射频和无线通信人才培养基地先后与人民邮电出版社、电子工业出版社合作出版了多本专业图书,成功推出了多套微波射频经典培训课程和等软件的使用培训课程,广受工程技术学员的好评,帮助数万名工程师提升了专业技术能力。客户遍布中兴通讯、研通高频、埃威航电、国人通信等多家国内知名公司,以及台湾工业技术研究院、永业科技、全一电子等多家台湾地区企业。示皿中文视频培训课程套装ANSYS LIFSS国内最全面和专业的培训教程套装,包含套视频教程和本教材,李明洋老师讲解;结合最新工程案例,视频操作FSs培訓程罄裴演示,让学习不再难。购买套装更可超值赠送个月免费学习答疑,让您花最少的成本,以最快的速度自学掌握【点击浏览详情】两周学会中文视频教程李明洋主讲,视频同步操作演示,直观易学。课程从零训起,通过两周的课程学习,可以帮助您快速入门、自学掌握真正做到让学习不再难…【点击浏览详情】微波器件仿真分析实例中文视频教程进阶培训课程,中文视频,通过十个仿真设计工程应用实例,带您更深入学的实际应用,掌握高级设置和应用技巧…【点山浏览详情】天线设计入门中文视频教程是天线设计的王者,该教程全面解析了天线的基础知识天线设计流程和详细操作设置,让天线设计不再难…【点击浏览详情】雷达散射截面分析中文视频教程全面剖析了如何使用仿貞计算各种目标物体的雷达散射截面),包括:单站双站和宽频【点击浏览详情】了解详情,请查看微波网(微REDA黄沫气形队、年好验积m可m专于做被,射频,录件工程斯养微波射频测量仪器培训课程套装合集测试仪器培训课程套装搞射频微波,不会仪器操作怎么行!矢量网终分析仪、频谱仪、取+书最+提专手E示波器、信号源是微波射频工程师最常用的测量仪器。该培训套装集合了直观的视频培训教程和详尽的图书教材,旨在帮助您快速熟悉和精通矢网、频谱仪、示波器等仪器的操作…【点微波EDA员wwww.nwra.com击浏览详情】学习培训课程套装AD学习调课程套装心吧口国内最全面和权威的培训教程,详细讲解了在微波射频电路、通信系统和电磁仿真设计方面的应用。课程是山具有多年使用经验的资深专家讲解,结合工稈实例,直观易学;能计您在最短的时间内学会,并把真正应用到研发工作中去…【点击浏览详情】我们的课程优势※成立于2004年,一直专注于射频工程师的培养,行业经验丰富,更了解您的需求※视频课稈、既能达到现场培训的效果,又能免除您舟车劳顿的辛苦,学习工作两不误※经验丰富的一线资深专家主讲,结合实际工程案例,直观、实用、易学※更多实用课程,欢迎登陆我们的官方网站或者登陆我们的官方淘宝店0A|-专注于微波、射频、硬件工程师的培养,址
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ansoft Maxwell 3d教程.pdf
ansoft Maxwell 3d 向导式的用户界面、精度驱动的自适应剖分技术和强大的后处理器时的Maxwell 3D成为业界最佳的高性能三维电磁设计软件。可以分析涡流、位移电流、集肤效应和邻近效应具有不可忽视作用的系统，得到电机、母线、变压器、线圈等电磁部件的整体特性。功率损耗、线圈损耗、某一频率下的阻抗（R和L）、力、转矩、电感、储能等参数可以自动计算。同时也可以给出整个相位的磁力线、B和H分布图、能量密度、温度分布等图形结果。本文件是软件使用教程.希望能帮助大家·Printing HistorNew editions of this manual include material up dated since theprevious edition. The manual printing date, indicating the manualscurrent edition, changes w hen a ncw edition is printed. Minorcorrections and updates incorporated al reprint do not cause the daleto changeUpdate packages may be issued betw een editions and containadditional and/ or rep lacement pages to be merged into the manualby the user Pages which are rearranged because of changes on aprevious page are not considered to be revised.EditionDateSoftwareRevisionFebruary 1991April 199212December 1993October 19964.1September 19995.06December 20006.0WWW⊥nmTypeface ConventionsComputerCter type is used fon promptsand messages, for field names, and for keyboard entries that must be ty ped in theirentirety exactly as shown. For example, thenstruction"copy filel"means to type the w ordcopy, to type a space. and then to type filelMenu/Command Computer type is also used to display the commands that are needed to perform a specifictask Menu levels are separated by forwardslashes (/) For example, the instructionhoose File/Open"means to choose the Opencommand under the file menuItalicsItalic type is used for emphasis and for thetitles of manuals and other publications. Italictype is also used for key board entries when aname or a variable must be typed in place ofthe words in italics. For example, the instruc-rion“ copy filename” means to type the wordcopy, to type a space, and then to type then amc of a filc. such as filelKeysHelvetica type is used for labeled keys on thecomputer keyboard. For example, the instruc-tion"Press Return?"means to press the key onthe com puter that is lahcled Returnwww.docin.coInstallationBefore you use Maxwell 3D, you must1. Set up your systems graphical windowing systerm2. Install the Maxwell softw are, using the directions in theAnsell PC or UNIX Installation guideIf you have not yet done these steps, refer to the ansoft installetionguides and the documentation that came w ith your computer systemor ask your system administrator for helpsing a Graphical User InterfaceIf you are familiar with the concepts of using a mouse, menus, andother graphical user interface(GUn)tools, skip to Chapter 1“ IntroductionIf you have not used GuI systems before, this section will help youunderstand some of the terminology used in this guide. Since GUIare basically visual, the best way to learn to use them is by practicingon your systemMost gui systcms usc a mouseas a poinTing device, with whichyou can select areas on the screenfor command execution andmoving from one program toanother. Your mouse may have 2www.door 3 buttons; Maxwell 3D ignoresthe middle button on 3-buttondelsAnsoft products donot usc this button. You canprogram mouse buttons to work in non-standard ways, as you mightwant to if you are left-handed. For simplicity, the left-hand hutton(under your forefinger if you are right-handed) is called the leftbutton, and the one on far right is the right mouse button. You willprobably find the terms intuitive once you use these buttons a fewtimesPoint and click; Right clickTo choose an item with the mouse, first move it on your desk until thearrow cursor is on that item; you are now pointing" at the item. Next,ress and release the left bu tton thlled"clicking " Point-andclick is the most common action you will make with your mouseally, click" refers to a lefise button clickYou can sometimes use your right mouse button to access or entercommands. In the 3d Modeler for instance, a right mouse buttonclick causes a short menu of commands to appear at the moustcursor. Generally, right click "refers to a right mouse button clickDouble-ClickOccasionally you may want to sclect all of thc text in a box,orperform a special lask(such as indicating the end of drawing a linewhile you are using Maxwell 3D. You can do this efficiently byquickly clicking twice with your left mouse button -a doubleDragging objects; Click and HoldWhen you are drawing in the 3D Modeler, you can often use yourmouse to enter objects and move around the screen. Frequently, youwill click the mouse button and hold it down until the next part of thecommand is reached (the object is oved, the next point is enteredand so forth). If you click and hold on the edge of a w indow, you canposition, or drag, the window on your screen. You can often dragobjects in Maxwell; experiment to see w hat will moveTool BarsTool bars are shortcut methods for entering commands. There is atool bar in the 3d Modeler and most of the setup modules for severalcommand s. To use a tool bar. click the mouse cursor on the buttonyou want to use. Here is an example of a tool bar囗。圖哦良风≌固函MenusWithin each screen of maxwell 3d are areas w hich list subsets ormenus,of commands. You can access a menu by clicking your mouseon the word or button that indicates the menu. The menu is pulleddown, listing the commands available on that menu. (For examplethc New command is availablc on the File mcnu. Usually, thc mcnuwill remain displayed until you choose a command, or click on thedesktop to exit. If the menu does not remain displayed, click and holdthe mouse button, then release the button to make your choiceFile Edit viewNewopenCloseSavectrl+SSave AsImportExportExitctrl+QAn arrow on the right side of a command indicates that there is asubmenu for that command. An ellipsis (. )indicates that a pop-upwindow appears aftcr choosing this commandWhen you are asked to use a menu command, each level is separatedby a"/". Thus, to zoom in on a drawing, you would choose the viewLoom In menu command To open a new file, you would choose File/There are also pop-up menus, which appear when you righL-click ona maxwell modeler window. choose commands from thcsc menus inthe same way as from menu barsFor more information on using GUIs, refer to"User Interface"in theMaxwell Control Panel,s online help systemOther ReferencesFor detailed information on Maxwell 3d commands refer to theonline documentation for the maxwell 3d field simulatorTo start maxwell 3d, you must first access the maxwell controlPanel. for more detailed inform ation on the maxwell control panelcommands, refer to the Maxwell Control Panels online help systemwww.docin.comTable of Contents1. Introduction1-1General Procedure.1-2The Sample Problem1-4Meshes.....,,,,,,,,面2. Create aAccess the maxwell Control Panel·:.·:·甲,,,,,,,,,,2-2Start the Project managerCreate a Project directoryCreate a New project··,···············,·,,,,,,,,,,2-6Enter notes2-73. Draw the model3-1Open the project3-2Start. the 3D Modeler3-3Side window........................snaps3-6Define the problem region: Coordinates and Units ..,...... 3-7Absolute and relative coordinates3-7Grids3-7Zooming in and out of the view window3-9Create the electromagnet3-10Draw the Coil...,,.,..,3-10Draw thc Circlc........,..,...,,,......,..........3-10Create the Cylinder,,3-11Create the hole for the Core3-12Draw the Core·中··············3-13SavingP3-14Create the magnel翻...3-15Draw the magnet3-15Move the magnet3-15Toggle Off the Background..................3-16Create a termini..........,,,,,..,,,,......,,,..3-17Create the Coil terminal..........,,......,,,.,..3-18Define the Problem Region;..,;;“;##.3-20Define the Problem Region .................. 3-21Shading and rendering . ......................................3-22Exit the 3d modeler3-234 Define The problemAccess the Material Manager4-2Exclude the background·····+···,,,,,,,,,,,,,,.4-2Assign Steel to the CoreAssign Copper to the Coil4-3Assign vacuum to the problem Region.......4.......4-3Assign NdFe35 to the Magnet4-3Access the 3D Boundary/Source Manager45assign a current to the coil.....4-6Define the sourceAssigning the Source lo the Termina.........,..,,,,∴4-64-7Check the Direction of the CurrentExit the 3D Boundary/Source Manager4-85. Generate a Solution5-1Setup executive Parameters······5-2Create a Force Setup for the Magnet.5-3Create a Force Setup for the Coil and Core5-3Create a Force Setup for the entire model·········Exiting the Executive Parameters moduleSpecifying Solution Criteria·非5-5Solver type11翻自。■非非首·····:.··.·Magnetic Field SolveResidualSolve for Field and Parameters+++++++++++++++++++++;,+“++Adaptive analysisContents-2
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