宽带匹配网络的实频法研究-电路与系统专业论文.docxVIP

步骤和应注意的事项。进行了大量的数值计算，最终得出了优化结果。 步骤和应注意的事项。进行了大量的数值计算，最终得出了优化结果。 (4)本文在匹配网络阻抗函数的实部折线段模型求出之后，研究了如何利用 其阻抗实部求出匹配网络的阻抗函数，然后来综合出整个匹配网络。 关键词：宽带匹配网络；传输功率增益函数；实频法；微带天线； 电路综合；数值计算 ABSn0妍Research ABSn0妍 Research of Real Frequency Method in Broadband Matching Network Major： Circuits and Systems Name： Zhaochu Wang Supervisor：Professor Yunliang Long ABSTRACT Broadband matching network is a very important part in communication systems． The mission of broadband matching network is to make the source transfer the biggest power to load between the source and load in the frequency band that we need． The main research in this thesis is about broadband matching network design theory and its applications．In the theory research，various methods of design matching network ate discussed．In the application research，two examples of application design are presented：one，designing a matching network for microstrip antenna；the other,designing a matching network for microstrip leaky wave antenna． Both of them belong to the design of matching network of passive load． The main work of the thesis is as foUows： 1．In the thesis，various methods of designing broadband matching network are introduced，the detail discussion about the Real Frequency Method that is a way to design matching network is given．This method is using very frequently in modern iii ABSTRACTengineering ABSTRACT engineering applications． 2．A specific rehash of the method in des远ning broadband matching network is done with the comparison between our numerical calculating experiments and results fmm the reference．Then after some change of the model,Some numerical calculating experiments arc presented． 3．Two broadband matching networks have been designed，one is for microstrip antenna,and the other is for microstrip leaky antenna．In the des塘ning process,some difficult points have been discussed，and the step how to set up an optimized function has been focused．A lot of numerical simulation experiments have been done，and a broadband match