本文關(guān)鍵詞：新型濾波綜合理論及其相關(guān)拓?fù)錇V波器件研究　出處：《中國科學(xué)技術(shù)大學(xué)》2017年博士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 微波濾波器 濾波器綜合 耦合矩陣 微波網(wǎng)絡(luò)

【摘要】：微波濾波器的綜合是指確定濾波器的拓?fù)浣Y(jié)構(gòu)和相關(guān)元件的理想?yún)?shù),給出濾波原理電路的過程。先進(jìn)的綜合理論不僅為后續(xù)電路加工、組裝、測試提供準(zhǔn)確的理論指導(dǎo),而且為不斷增長的性能指標(biāo)提供創(chuàng)造性的解決方案,因此是濾波器設(shè)計的基礎(chǔ)。隨著現(xiàn)代通信系統(tǒng)的急速發(fā)展,濾波器在結(jié)構(gòu)特性和性能特性上面臨新的需求和挑戰(zhàn)。本文針對三類現(xiàn)代濾波器綜合面臨的挑戰(zhàn)展開討論,包括:以濾波響應(yīng)為基礎(chǔ)的多功能、一體化無源器件綜合技術(shù),實現(xiàn)濾波器傳輸零點(diǎn)靈活生成與控制的先進(jìn)綜合技術(shù),高頻率選擇特性的直線型拓?fù)錇V波器綜合技術(shù),并分別給出先進(jìn)的直接綜合理論。具體地,本文的主要工作和創(chuàng)新點(diǎn)如下:首次提出一套廣義濾波綜合理論,定義一種廣義濾波網(wǎng)絡(luò)以實現(xiàn)傳統(tǒng)濾波器、匹配網(wǎng)絡(luò)、理想移相器的一體化設(shè)計。從廣義濾波網(wǎng)絡(luò)的S參數(shù)出發(fā)推導(dǎo)新的二端口導(dǎo)納參數(shù)要求,通過合理地引入非諧振節(jié)點(diǎn),提出一種新型的橫向陣列。按照全新的耦合系數(shù)定義,最終得到全新的耦合矩陣。由于濾波、匹配和移相功能可以通過單一的耦合矩陣進(jìn)行描述,本研究對減小射頻前端的尺寸,降低射頻前端設(shè)計復(fù)雜度和插入損耗有顯著的作用。在廣義濾波網(wǎng)絡(luò)的研究基礎(chǔ)上,首次提出混合型拓?fù)錇V波器的耦合矩陣綜合理論。本文研究表明,濾波器橫向陣列網(wǎng)絡(luò)可在特定S參數(shù)相移情況下自動生成提取極點(diǎn)枝節(jié)。提出一套新穎的導(dǎo)納參數(shù)和拓?fù)浣Y(jié)構(gòu)重構(gòu)方案,分別給出包含單一或多個提取極點(diǎn)枝節(jié)情況下,混合型拓?fù)錇V波器的耦合矩陣直接綜合方法。根據(jù)本文方法,混合型拓?fù)錇V波器的所有相關(guān)耦合系數(shù)可以一次性全部求解得到,相比傳統(tǒng)的元素提取方法可明顯提高綜合效率,并有效降低舍入誤差;這說明本文方法是實現(xiàn)傳輸零點(diǎn)靈活生成與控制的最佳綜合方案。首次將頻率相關(guān)耦合引入直線型拓?fù)淇礊V波器的綜合中,提出一套包含頻率相關(guān)耦合的新型直線型拓?fù)錇V波器綜合理論。根據(jù)頻率變量的縮放法則,介紹從橫向陣列模型(僅包含常數(shù)耦合)通過矩陣變換得到新型直線型拓?fù)?包含頻率相關(guān)耦合)的方法。根據(jù)本文方法,首次實現(xiàn)了高頻率選擇性直線型拓?fù)錇V波器的綜合,有效減少了生成傳輸零點(diǎn)所需的電路單元和耦合數(shù)量。
[Abstract]:The synthesis of microwave filter is to determine the topology of filter and the ideal parameters of relevant components, and to give the process of filter principle circuit. The advanced synthesis theory is not only for the subsequent circuit processing and assembly. Testing provides accurate theoretical guidance and provides creative solutions for growing performance indicators, so it is the basis of filter design. With the rapid development of modern communication systems. Filters face new requirements and challenges in terms of their structural and performance characteristics. This paper discusses the challenges faced by three types of modern filter synthesis, including: multifunction based on filter response. Integrated passive device synthesis technology, the realization of filter transmission 00:00 flexible generation and control of advanced synthesis technology, high frequency selection characteristics of linear topology filter synthesis technology. The main work and innovation of this paper are as follows: a set of generalized filter synthesis theory is proposed for the first time, and a generalized filter network is defined to realize the traditional filter. Matching network, integrated design of ideal phase shifter. According to the S-parameter of generalized filter network, the new two-port admittance parameter requirement is deduced, and the non-resonant node is introduced reasonably. A new type of transverse array is proposed. According to the new definition of coupling coefficient, a new coupling matrix is obtained. Because of filtering, the functions of matching and phase shifting can be described by a single coupling matrix. This study can reduce the size of RF front-end, reduce the design complexity and insertion loss of RF front-end. The coupling matrix synthesis theory of hybrid topological filter is proposed for the first time. The filter transversal array network can automatically generate and extract poles in the case of specific S-parameter phase shift. A novel reconstruction scheme of admittance parameters and topological structure is proposed. The direct synthesis method of coupling matrix for hybrid topological filter with single or multiple extracted poles is given respectively according to the method presented in this paper. All the correlation coupling coefficients of the hybrid topology filter can be solved all at one time. Compared with the traditional element extraction method, the integrated efficiency can be significantly improved and the rounding error can be effectively reduced. This shows that this method is the best synthesis scheme to realize the 00:00 flexible generation and control of transmission, and the frequency correlation coupling is introduced into the synthesis of linear topological filter for the first time. A new synthesis theory of linear topological filter including frequency correlation coupling is proposed, according to the scaling rule of frequency variable. This paper introduces the method of obtaining a new linear topology (including frequency dependent coupling) by matrix transformation from the transverse array model (which contains only constant coupling). The synthesis of high frequency selective linear topology filter is realized for the first time, which effectively reduces the number of circuit units and coupling needed to generate 00:00 transmission.
【學(xué)位授予單位】：中國科學(xué)技術(shù)大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2017
【分類號】：TN713

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