本文選題：信號(hào)干擾技術(shù) + 反相器��； 參考：《南京理工大學(xué)》2017年碩士論文

【摘要】：隨著無(wú)線(xiàn)技術(shù)的快速發(fā)展,多功能、高集成的射頻綜合系統(tǒng)中的信號(hào)完整性是一個(gè)極具挑戰(zhàn)性的問(wèn)題。電路功能的多樣化、小型化和模塊化使得電路節(jié)點(diǎn)之間的電磁干擾和介質(zhì)層間的串?dāng)_影響十分明顯。相對(duì)于單端電路,平衡電路具有共模抑制特性,可以有效地降低系統(tǒng)噪聲,減小電路組件的串?dāng)_。因此,平衡電路在通信系統(tǒng)中受到越來(lái)越多的關(guān)注。具有選頻特性的濾波器,以及實(shí)現(xiàn)信號(hào)的分配與合成的功分/合成器,是微波設(shè)備中不可或缺的組成部分,它們廣泛地應(yīng)用于微波通信、電子對(duì)抗、微波測(cè)量和頻率綜合等領(lǐng)域。因此,基于平衡式的濾波器和功分/合成網(wǎng)絡(luò)的研究有著重要的意義。針對(duì)平衡電路中的熱點(diǎn)與難點(diǎn)問(wèn)題,本論文結(jié)合信號(hào)干擾技術(shù)和新型傳輸線(xiàn)探索實(shí)現(xiàn)寬帶平衡電路的設(shè)計(jì)方法,以實(shí)現(xiàn)電路的高性能為目標(biāo),開(kāi)展了以下三個(gè)方面的工作:1.基于信號(hào)干擾技術(shù)的超寬帶平衡濾波器的分析與設(shè)計(jì):首先介紹了信號(hào)干擾技術(shù),并推導(dǎo)了四端口平衡電路的混合模S參數(shù)。然后,利用180°移相結(jié)構(gòu)和橫向式濾波器結(jié)構(gòu)的理論模型,完成兩種平衡濾波器的設(shè)計(jì)與加工。電路中兩路信號(hào)的同相疊加和反相相消實(shí)現(xiàn)了寬頻段的差模傳輸和共模抑制。這部分研究成果已在Applied Computational Electromagnetiecs Society雜志上發(fā)表。2.基于DSPSL的寬帶平衡功率分配/合成網(wǎng)絡(luò)的分析與設(shè)計(jì):首先介紹了雙面平行帶線(xiàn)(DSPSL)的結(jié)構(gòu)特性,并推導(dǎo)了六端口平衡電路的混合模S參數(shù)。利用DSPSL設(shè)計(jì)了不隨頻率變化的反相器,實(shí)現(xiàn)寬頻段的隔離度。在此基礎(chǔ)上,通過(guò)加載的半波長(zhǎng)開(kāi)路支節(jié),拓展了功率分配/合成網(wǎng)絡(luò)的共模抑制帶寬。這部分成果已在IEEE Transactions on Microwave Theory and Techniques,IEEE Microwave and Wireless ComponentsLetters雜志上發(fā)表,其中基于雙面平行帶線(xiàn)的六端口平衡功分網(wǎng)絡(luò)申請(qǐng)了一項(xiàng)專(zhuān)利。3.基于耦合線(xiàn)加載的濾波功分器及其平衡電路的分析和設(shè)計(jì):提出了三種新型的具有寬頻諧波抑制的濾波功分器和平衡式功分器。通過(guò)采用耦合線(xiàn)代替功分器中的λ/4阻抗變換線(xiàn),可以靈活地實(shí)現(xiàn)阻抗匹配,更有效地實(shí)現(xiàn)功分器的濾波功能。另外,階躍耦合線(xiàn)進(jìn)一步增加了帶外傳輸零點(diǎn)個(gè)數(shù),拓寬了上阻帶的諧波抑制。最后,設(shè)計(jì)并加工了一種具有寬頻段共模抑制和高隔離度的平衡式濾波功分器。這部分成果已投稿IEEE Transactions on Microwave Theory and Techniques,IEEE Transactions on Components Packaging and Manufacturing Technology。
[Abstract]:With the rapid development of wireless technology, the signal integrity in multifunctional and highly integrated RF integrated systems is a very challenging problem. With the diversification of circuit functions, miniaturization and modularization, the effects of electromagnetic interference between circuit nodes and crosstalk between dielectric layers are obvious. Compared with the single-ended circuit, the balancing circuit has the characteristics of common mode suppression, which can effectively reduce the system noise and the crosstalk of the circuit components. Therefore, more and more attention has been paid to the balance circuit in the communication system. Filters with the characteristics of frequency selection, as well as power division / synthesizer for signal distribution and synthesis, are indispensable components of microwave equipment. They are widely used in microwave communication, electronic countermeasures, Microwave measurement and frequency synthesis. Therefore, the research of balanced filter and power division / synthesis network is of great significance. Aiming at the hot and difficult problems in the balance circuit, this paper combines the signal interference technology and the new transmission line to explore the design method of the wideband balance circuit. With the goal of realizing the high performance of the circuit, the following three aspects of work are carried out: 1. The analysis and design of UWB balanced filter based on signal interference technology: firstly, the signal interference technology is introduced, and the mixed mode S parameters of four-port balancing circuit are deduced. Then, using the theoretical model of 180 擄phase-shift structure and transversal filter structure, the design and fabrication of two kinds of balanced filters are completed. In the circuit, the two signals are superposed in the same phase and the inverse cancellation realizes the differential mode transmission and common mode suppression in the wide band. This part of the study is published in the journal Applied Computational Electromagnetiecs Society. Analysis and Design of Wideband balanced Power Distribution / Synthesis Network based on DSPSL: firstly, the structure characteristics of double-sided parallel strip-line DSPSLs are introduced, and the hybrid mode S parameters of six-port balanced circuit are derived. The inverter is designed with DSPSL to realize the isolation of wide band. On this basis, the common-mode suppression bandwidth of the power distribution / synthesis network is extended by loading the half-wavelength open branch. The results were published in the IEEE Transactions on Microwave Theory and Techniques-IEEE Microwave and Wireless ComponentsLetters magazine, in which the six-port balanced power distribution network based on double-sided parallel tape lines applied for a patent .3. Analysis and Design of filter Power Divider and its balancing Circuit based on Coupling Line loading: three new filter power dividers and balanced power dividers with broadband harmonic suppression are proposed. By using coupling line instead of 位 / 4 impedance transformation line in power divider, impedance matching can be realized flexibly and the filter function of power divider can be realized more effectively. In addition, the step coupling line further increases the number of transmission zeros outside the band and broadens the harmonic suppression of the upper stopband. Finally, a balanced filter power divider with wide band common mode suppression and high isolation is designed and fabricated. This part of the work has been submitted to the IEEE Transactions on Microwave Theory and technical question-IEEE Transactions on Components Packaging and Manufacturing technology.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TN713;TN626

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