新型微波毫米波带通滤波器的研究与设计
发布时间：2018-11-12 12:09
【摘要】：微波滤波器一直是无线通信系统中不可或缺的一个重要组成部分。滤波器性能的优劣将直接影响整个系统的使用。随着无线系统的快速发展,同时也对滤波器的发展做出了极大的刺激,近年来,高性能、小型化、低损耗、高功率容量的滤波器变得越来越需要。另一方面,随着无线频谱的日益扩张,而毫米波通信的又具有诸多优点,因此无线通信系统的频率趋向于毫米波发展是未来的一个趋势,因此对于高性能毫米波滤波器的研究也是一个十分热门的课题。本文致力于微波毫米波滤波器的设计与综合理论研究。首先介绍利用微带线来设计超宽带带通滤波器以及改进电路,其次介绍了一种新型的旋转对称结构,利用其可在带外产生一对传输零点的优势来设计微带毫米波旋转对称滤波器。对于传统的滤波器设计方法,在利用偶数阶切比雪夫低通原型电路时将会出现源负载不一致的问题,本文对于此问题提出了解决办法。另外考虑到滤波器与射频芯片集成时存在的端口转换问题,本文也介绍了一些平衡滤波器的研究与设计。并且提出一种双层介质板结构,利用槽线对共模信号的固有抑制能力,设计出了性能优良的双频及可调双频平衡滤波器。本文同样围绕基片集成波导(SIW)传输线做了一些毫米波带通滤波器的研究与综合理论设计。首先介绍两种带有槽线的SIW单元,采用电磁带隙(EBG)的分析方法,得到其具有带通滤波器的响应特性,并且提出一种新颖的电耦合模型,进一步将其应用到毫米波滤波器的设计中去。并在此基础上,利用耦合谐振电路的理论来对滤波器进行优化和综合设计,最后设计了两款中心频率分别为140GHz和40GHz的带通滤波器。从测试结果来看,其性能良好,适合毫米波通信的需求。最后,本文对所提出的微波毫米波滤波器进行了总结和展望,设计的诸多滤波器基本上具有高性能、小型化、低成本等特点,也十分适合工业中无线系统的使用和发展。
[Abstract]:Microwave filter is an indispensable part of wireless communication system. The performance of the filter will directly affect the use of the whole system. With the rapid development of wireless systems, the development of filters has been greatly stimulated. In recent years, high performance, miniaturization, low loss, high power capacity filters have become more and more necessary. On the other hand, with the increasing expansion of wireless spectrum, and millimeter-wave communication has many advantages, so the frequency of wireless communication systems tend to the development of millimeter-wave is a trend in the future. Therefore, the research of high performance millimeter wave filter is also a very hot topic. This paper focuses on the design and synthesis of microwave millimeter wave filters. This paper first introduces the design of ultra-wideband bandpass filter and its improved circuit by using microstrip line, and then introduces a new kind of rotating symmetric structure. The microstrip millimeter-wave rotating symmetric filter is designed by taking advantage of its advantage of generating a pair of transmission zeros out of the band. For the traditional filter design method, when using even order Chebyshev low-pass prototype circuit, the source load will be inconsistent. The solution to this problem is proposed in this paper. In addition, considering the problem of port conversion in the integration of filter and RF chip, this paper also introduces the research and design of some balanced filters. A double-layer dielectric plate structure is proposed and a dual-frequency and tunable dual-frequency balanced filter with excellent performance is designed by using the inherent suppression ability of the slot line to the common-mode signal. In this paper, some millimeter-wave bandpass filters are also studied and synthesized around the substrate integrated waveguide (SIW) transmission line. First, two kinds of SIW elements with slot lines are introduced. The electromagnetic band gap (EBG) analysis method is used to obtain the response characteristics of the bandpass filter, and a novel electrically coupled model is proposed. It is further applied to the design of millimeter wave filter. On this basis, the theory of coupling resonant circuit is used to optimize and synthesize the filter. Finally, two bandpass filters with center frequency of 140GHz and 40GHz are designed. The test results show that the performance is good and suitable for millimeter wave communication. Finally, the proposed microwave and millimeter wave filters are summarized and prospected. The designed filters have the characteristics of high performance, miniaturization and low cost, and are also suitable for the use and development of wireless systems in industry.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713.5
本文编号：2327067
[Abstract]:Microwave filter is an indispensable part of wireless communication system. The performance of the filter will directly affect the use of the whole system. With the rapid development of wireless systems, the development of filters has been greatly stimulated. In recent years, high performance, miniaturization, low loss, high power capacity filters have become more and more necessary. On the other hand, with the increasing expansion of wireless spectrum, and millimeter-wave communication has many advantages, so the frequency of wireless communication systems tend to the development of millimeter-wave is a trend in the future. Therefore, the research of high performance millimeter wave filter is also a very hot topic. This paper focuses on the design and synthesis of microwave millimeter wave filters. This paper first introduces the design of ultra-wideband bandpass filter and its improved circuit by using microstrip line, and then introduces a new kind of rotating symmetric structure. The microstrip millimeter-wave rotating symmetric filter is designed by taking advantage of its advantage of generating a pair of transmission zeros out of the band. For the traditional filter design method, when using even order Chebyshev low-pass prototype circuit, the source load will be inconsistent. The solution to this problem is proposed in this paper. In addition, considering the problem of port conversion in the integration of filter and RF chip, this paper also introduces the research and design of some balanced filters. A double-layer dielectric plate structure is proposed and a dual-frequency and tunable dual-frequency balanced filter with excellent performance is designed by using the inherent suppression ability of the slot line to the common-mode signal. In this paper, some millimeter-wave bandpass filters are also studied and synthesized around the substrate integrated waveguide (SIW) transmission line. First, two kinds of SIW elements with slot lines are introduced. The electromagnetic band gap (EBG) analysis method is used to obtain the response characteristics of the bandpass filter, and a novel electrically coupled model is proposed. It is further applied to the design of millimeter wave filter. On this basis, the theory of coupling resonant circuit is used to optimize and synthesize the filter. Finally, two bandpass filters with center frequency of 140GHz and 40GHz are designed. The test results show that the performance is good and suitable for millimeter wave communication. Finally, the proposed microwave and millimeter wave filters are summarized and prospected. The designed filters have the characteristics of high performance, miniaturization and low cost, and are also suitable for the use and development of wireless systems in industry.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713.5
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