新型微波毫米波帶通濾波器的研究與設(shè)計
發(fā)布時間：2018-11-12 12:09
【摘要】：微波濾波器一直是無線通信系統(tǒng)中不可或缺的一個重要組成部分。濾波器性能的優(yōu)劣將直接影響整個系統(tǒng)的使用。隨著無線系統(tǒng)的快速發(fā)展,同時也對濾波器的發(fā)展做出了極大的刺激,近年來,高性能、小型化、低損耗、高功率容量的濾波器變得越來越需要。另一方面,隨著無線頻譜的日益擴張,而毫米波通信的又具有諸多優(yōu)點,因此無線通信系統(tǒng)的頻率趨向于毫米波發(fā)展是未來的一個趨勢,因此對于高性能毫米波濾波器的研究也是一個十分熱門的課題。本文致力于微波毫米波濾波器的設(shè)計與綜合理論研究。首先介紹利用微帶線來設(shè)計超寬帶帶通濾波器以及改進(jìn)電路,其次介紹了一種新型的旋轉(zhuǎn)對稱結(jié)構(gòu),利用其可在帶外產(chǎn)生一對傳輸零點的優(yōu)勢來設(shè)計微帶毫米波旋轉(zhuǎn)對稱濾波器。對于傳統(tǒng)的濾波器設(shè)計方法,在利用偶數(shù)階切比雪夫低通原型電路時將會出現(xiàn)源負(fù)載不一致的問題,本文對于此問題提出了解決辦法。另外考慮到濾波器與射頻芯片集成時存在的端口轉(zhuǎn)換問題,本文也介紹了一些平衡濾波器的研究與設(shè)計。并且提出一種雙層介質(zhì)板結(jié)構(gòu),利用槽線對共模信號的固有抑制能力,設(shè)計出了性能優(yōu)良的雙頻及可調(diào)雙頻平衡濾波器。本文同樣圍繞基片集成波導(dǎo)(SIW)傳輸線做了一些毫米波帶通濾波器的研究與綜合理論設(shè)計。首先介紹兩種帶有槽線的SIW單元,采用電磁帶隙(EBG)的分析方法,得到其具有帶通濾波器的響應(yīng)特性,并且提出一種新穎的電耦合模型,進(jìn)一步將其應(yīng)用到毫米波濾波器的設(shè)計中去。并在此基礎(chǔ)上,利用耦合諧振電路的理論來對濾波器進(jìn)行優(yōu)化和綜合設(shè)計,最后設(shè)計了兩款中心頻率分別為140GHz和40GHz的帶通濾波器。從測試結(jié)果來看,其性能良好,適合毫米波通信的需求。最后,本文對所提出的微波毫米波濾波器進(jìn)行了總結(jié)和展望,設(shè)計的諸多濾波器基本上具有高性能、小型化、低成本等特點,也十分適合工業(yè)中無線系統(tǒng)的使用和發(fā)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.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN713.5
本文編號：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.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN713.5
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