滤波器辅助设计软件的分析与实现
发布时间：2018-12-17 07:06
【摘要】：微波滤波器,最常见最基本的应用,就是截断不需要的频率信号,而让需要的频率信号顺利通过。在现代微波电路系统中,很多设计的核心问题都在滤波器上面,这已经成为微波电路设计不可避免的问题。随着电子技术的不断进步,特别是在通信领域的巨大飞跃,使得通信频率资源越来越紧张,微波频段相对拥挤,这就对滤波器的性能提出了更高的要求。低通带插损、高阻带抑制、高功率容量、宽频带应用、远寄生通带等为主要的基本技术指标,而低成本、小体积以及快速设计的方法和缩短设计周期也已成关键的技术要求。在电子计算机高度发达的今天,数值计算的速度和精度都有了巨大的飞跃。因此,一大批优秀的数值计算软件和微波EDA工具应运而生,而Matlab和HFSS正是它们当中的佼佼者,分别代表了各自领域的最高水平。传统的,以手动和试探的滤波器设计方法,无论是从成本效率上考虑还是从计算的准确度和深度上考虑,都已不实用,所以急需寻找更具效率和精确的设计方法,而软件的自动化设计将是目前最好的选择。鉴于此,能够同时利用这两个软件的优点,将是缩短仿真设计滤波器周期的一个突破口。本文应用HFSS-Matlab-API脚本程序,完成了终端短路式交指滤波器的设计,并添加了GUI界面,使之最终成为一个功能完整的滤波器辅助设计软件。它不仅有效地借助了Matlab强大的数值计算和建模功能,同时也结合了三维电磁仿真软件HFSS的精准仿真功能。这不仅仅是一种数值计算和建模的方法学上的应用,也是一种在滤波器设计和优化的时效性应用。在本文的最后,为了显示软件的实用性,文中给出了具有说服力的应用实例。同时在论文之外,也做了大量的设计应用,以便更好的给出本软件的适用范围。
[Abstract]:Microwave filter, the most common and basic application, is to truncate the unnecessary frequency signal and let the needed frequency signal pass smoothly. In the modern microwave circuit system, the core problem of many designs is the filter, which has become the inevitable problem in the microwave circuit design. With the development of electronic technology, especially in the field of communication, the communication frequency resources become more and more tight, the microwave band is relatively crowded, which puts forward higher requirements for the performance of the filter. Low pass band insertion loss, high stopband suppression, high power capacity, wide band application and remote parasitic passband are the main technical specifications, while low cost, small volume, rapid design methods and shortening design cycle have become the key technical requirements. With the development of computer, the speed and precision of numerical calculation have made a great leap forward. Therefore, a large number of excellent numerical computing software and microwave EDA tools emerge as the times require, and Matlab and HFSS are the best among them, representing the highest level in their respective fields. Traditional, manual and heuristic filter design methods, whether in terms of cost efficiency or accuracy and depth of calculation, are no longer practical, so there is an urgent need to find more efficient and accurate design methods. And the automation design of software will be the best choice at present. In view of this, the advantages of the two software can be used simultaneously, which will be a breakthrough to shorten the filter period of simulation design. In this paper, HFSS-Matlab-API script program is used to complete the design of the terminal short-circuit interDigital filter, and the GUI interface is added to make it a functionally complete software for the auxiliary design of the filter. It not only effectively makes use of the powerful numerical calculation and modeling function of Matlab, but also combines the precise simulation function of 3D electromagnetic simulation software HFSS. This is not only a method of numerical calculation and modeling, but also a time-effect application in filter design and optimization. Finally, in order to show the practicability of the software, a persuasive application example is given. At the same time, in addition to the paper, also made a large number of design applications, in order to better give the scope of application of the software.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713
，
本文编号：2383846
[Abstract]:Microwave filter, the most common and basic application, is to truncate the unnecessary frequency signal and let the needed frequency signal pass smoothly. In the modern microwave circuit system, the core problem of many designs is the filter, which has become the inevitable problem in the microwave circuit design. With the development of electronic technology, especially in the field of communication, the communication frequency resources become more and more tight, the microwave band is relatively crowded, which puts forward higher requirements for the performance of the filter. Low pass band insertion loss, high stopband suppression, high power capacity, wide band application and remote parasitic passband are the main technical specifications, while low cost, small volume, rapid design methods and shortening design cycle have become the key technical requirements. With the development of computer, the speed and precision of numerical calculation have made a great leap forward. Therefore, a large number of excellent numerical computing software and microwave EDA tools emerge as the times require, and Matlab and HFSS are the best among them, representing the highest level in their respective fields. Traditional, manual and heuristic filter design methods, whether in terms of cost efficiency or accuracy and depth of calculation, are no longer practical, so there is an urgent need to find more efficient and accurate design methods. And the automation design of software will be the best choice at present. In view of this, the advantages of the two software can be used simultaneously, which will be a breakthrough to shorten the filter period of simulation design. In this paper, HFSS-Matlab-API script program is used to complete the design of the terminal short-circuit interDigital filter, and the GUI interface is added to make it a functionally complete software for the auxiliary design of the filter. It not only effectively makes use of the powerful numerical calculation and modeling function of Matlab, but also combines the precise simulation function of 3D electromagnetic simulation software HFSS. This is not only a method of numerical calculation and modeling, but also a time-effect application in filter design and optimization. Finally, in order to show the practicability of the software, a persuasive application example is given. At the same time, in addition to the paper, also made a large number of design applications, in order to better give the scope of application of the software.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713
，
本文编号：2383846
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