本文選題：基片集成波導 + 主動空間映射��； 參考：《東南大學》2015年碩士論文

【摘要】：通信衛(wèi)星的微波載荷系統(tǒng)、雷達系統(tǒng)和地面無線通信基站的射頻單元系統(tǒng)都需要處理多頻段、大功率的微波射頻信號。在這些微波系統(tǒng)中,高性能雙工及多工器組成的子系統(tǒng)是必不可少的。一個多工器網(wǎng)絡由多個通道選擇濾波器組成。這些濾波器要求以最小的插損來選擇所需頻段的微波信號,同時將帶外的干擾抑制到一個可以接收的范圍。在信道相鄰多工器的設(shè)計中,信道濾波器之間的相互影響十分嚴重,采用傳統(tǒng)設(shè)計方法,往往需要數(shù)天甚至數(shù)星期才能獲得較好的設(shè)計結(jié)果。為了提高設(shè)計效率,同時節(jié)省器件的體積和重量,本文研究了一種緊湊型的平面集成相鄰信道波導多工器并提出了其系統(tǒng)設(shè)計方法,極大的提高了設(shè)計效率和器件性能。論文使用基片集成波導(Substrate Integrated Waveguide, SIW)技術(shù)對信道相鄰輸出型微波多工器進行了研究。為此,首先對傳統(tǒng)的微波多工器、基片集成波導技術(shù)、微波濾波器及其設(shè)計技術(shù)進行了回顧。由于基片集成波導多工器復雜的結(jié)構(gòu)及較多的不連續(xù)性,使得全波分析時產(chǎn)生大量網(wǎng)格數(shù),直接進行傳統(tǒng)的參數(shù)掃描或優(yōu)化將會耗費大量的時間,對于工程上來說不可行,因此急需一種有效且準確的方法。近年來出現(xiàn)的空間映射算法可以很好地解決這個問題。結(jié)合主動空間映射法,在ADS和HFSS軟件中分別建立電路模型(粗糙模型)和全波電磁模型(精確模型),使用該算法法找出電路模型和全波模型之間的映射關(guān)系,然后進行少數(shù)的幾次迭代就可使多工器達到指標要求。整個過程只需要幾次全波仿真,既獲得了電路仿真的快速性又保證了全波仿真的準確性。利用此方法,論文對微波SIW單通帶濾波器、雙通帶濾波器、雙工器和多工器展開了研究。具體工作如下：在第一章中,論文回顧了微波多工器和SIW的發(fā)展。在第二章中,論文討論微波濾波器設(shè)計的基本理論及空間映射算法。在第三章中,本文利用空間映射法,結(jié)合SIW和濾波器設(shè)計理論,研究了SIW單通帶濾波器及雙通帶濾波器。提出了一種高效的SIW濾波器的設(shè)計方法并利用實驗進行了驗證。在第四章中,論文基于空間映射方法,對SIW信道相鄰多工器進行了研究。提出了一種緊湊的平面集成微波多工器結(jié)構(gòu)：發(fā)展了一種高效的信道相鄰多工器的系統(tǒng)設(shè)計方法；以工作于X波段和Ka波段的四路信道相鄰多工器為例,詳細介紹了設(shè)計方法并利用實驗進行了驗證。最后在第五章中,對本文的工作進行了總結(jié)和展望。
[Abstract]:The microwave payload system of communication satellite, radar system and radio frequency unit system of terrestrial wireless communication base station all need to deal with multi-frequency and high-power microwave radio frequency signal. In these microwave systems, high performance duplex and multiplexer subsystems are essential. A multiplexer network consists of multiple channel selection filters. These filters require the minimum insertion loss to select the microwave signal in the desired frequency band and suppress the out-of-band interference to an acceptable range. In the design of channel adjacent multiplexer, the interaction between channel filters is very serious. The traditional design method usually takes days or even weeks to obtain better design results. In order to improve the design efficiency and save the volume and weight of the device, a compact planar integrated adjacent channel waveguide multiplexer is studied and its system design method is proposed, which greatly improves the design efficiency and device performance. In this paper, the substrate Integrated Waveguide, SIW) technique is used to study the adjacent channel output microwave multiplexer. Firstly, the traditional microwave multiplexer, substrate integrated waveguide technology, microwave filter and its design techniques are reviewed. Because of the complex structure and more discontinuities of the substrate integrated waveguide multiplexer, a large number of meshes are generated in the full-wave analysis, and the traditional parameter scanning or optimization will take a lot of time, which is not feasible in engineering. Therefore, an effective and accurate method is urgently needed. The spatial mapping algorithm that appeared in recent years can solve this problem very well. Combined with active space mapping method, circuit model (rough model) and full wave electromagnetic model (exact model) are established in ADS and HFSS software respectively. The mapping relationship between circuit model and full wave model is found by using this algorithm. Then a few iterations are carried out to make the multiplexer meet the specifications. The whole process requires only a few full wave simulations, which not only obtains the speed of circuit simulation, but also ensures the accuracy of full wave simulation. Using this method, microwave SIW single pass band filter, duplex and multiplexer are studied in this paper. The main work is as follows: in the first chapter, the development of microwave multiplexer and SIW is reviewed. In the second chapter, the basic theory of microwave filter design and spatial mapping algorithm are discussed. In the third chapter, the SIW single pass band filter and double pass band filter are studied by using the spatial mapping method and the theory of SIW and filter design. An efficient design method of SIW filter is proposed and verified by experiments. In chapter 4, based on spatial mapping method, adjacent multiplexers in SIW channel are studied. In this paper, a compact planar integrated microwave multiplexer structure is proposed. An efficient system design method for channel adjacent multiplexer is developed, and a four-channel adjacent multiplexer operating in X-band and Ka band is taken as an example. The design method is introduced in detail and verified by experiments. Finally, in the fifth chapter, the work of this paper is summarized and prospected.
【學位授予單位】：東南大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN631.2

【參考文獻】

相關(guān)期刊論文 前2條

1 徐迎虎;項鐵銘;;基于漸進空間映射法的同軸腔體濾波器設(shè)計[J];杭州電子科技大學學報;2011年02期

2 鄧建華;王秉中;甘體國;;空間映射方法研究及其在LTCC設(shè)計中的應用[J];電子科技大學學報;2007年01期

相關(guān)博士學位論文 前4條

1 鄭博仁;高性能基片集成波導微波濾波器研究[D];電子科技大學;2012年

2 古健;基于基片集成波導的LTCC電路研究[D];電子科技大學;2011年

3 鐘催林;基于基片集成波導的微波電路研究[D];電子科技大學;2009年

4 郝張成;基片集成波導技術(shù)的研究[D];東南大學;2006年

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本文編號：1893306