本文選題：超寬帶　切入點(diǎn)：濾波器　出處：《南京理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：超寬帶技術(shù)隨著通信行業(yè)的發(fā)展成為了未來通信行業(yè)重點(diǎn)關(guān)注的領(lǐng)域,超寬帶帶通濾波器作為超寬帶系統(tǒng)中重要的器件也得到了廣泛的關(guān)注。由于超寬帶頻率范圍內(nèi),存在著很多窄帶通信信號,影響超寬帶系統(tǒng)的性能。因此,具有陷波的UWB帶通濾波器成為研究熱點(diǎn)。本文的主要內(nèi)容為:1.設(shè)計(jì)了一款基于E型諧振器的UWB帶通濾波器,該濾波器具有小型化,易于加工的特點(diǎn)。提出一種用貼片電容耦合雙諧振器的方式實(shí)現(xiàn)緊耦合的方法,解決了實(shí)際加工中的難題,拓寬應(yīng)用頻段;利用C型缺陷地結(jié)構(gòu)對其進(jìn)行高頻諧波抑制,優(yōu)化濾波器性能。隨后在此基礎(chǔ)上,根據(jù)串聯(lián)諧振原理,利用純電抗元件引入一個中心頻率可調(diào)的陷波。2.設(shè)計(jì)了一款基于半波長階梯阻抗枝節(jié)加載諧振器的UWB帶通濾波器,該濾波器通帶內(nèi)有五個傳輸極點(diǎn),平坦度好。濾波器結(jié)構(gòu)緊湊體積小,易于加工。隨后在此基礎(chǔ)上,靈活利用嵌入式枝節(jié)結(jié)構(gòu),非對稱輸入輸出結(jié)構(gòu)引入陷波,設(shè)計(jì)兩個帶陷UWB帶通濾波器:一個雙陷波(5.8GHz/8GHz)UWB帶通濾波器;一個基于PIN管的電調(diào)陷波UWB帶通濾波器。3.設(shè)計(jì)了一種陷波處于中心的UWB帶通濾波器,并將其應(yīng)用于一種自適應(yīng)天線干擾檢測子系統(tǒng)中。對該子系統(tǒng)進(jìn)行了方案設(shè)計(jì)和指標(biāo)分解,然后對各個主要部件進(jìn)行了設(shè)計(jì)研究,仿真得到的性能能夠滿足各模塊的指標(biāo)要求,組建的整個子系統(tǒng)能夠?qū)崿F(xiàn)干擾檢測的功能。
[Abstract]:Ultra-wideband (UWB) technology has become the focus of future communication industry with the development of communication industry. UWB bandpass filter as an important device in UWB system has also been widely concerned. There are many narrowband communication signals which affect the performance of UWB system. Therefore, the UWB bandpass filter with notch wave has become a research hotspot. The main content of this paper is: 1. A UWB band-pass filter based on E-type resonator is designed. The filter has the characteristics of miniaturization and easy to be machined. This paper presents a method of tight coupling by means of chip capacitance-coupled double resonator, which solves the problem in practical machining and broadens the applied frequency band. The high frequency harmonic suppression is carried out by using the C-type defect ground structure, and the filter performance is optimized. Then, according to the principle of series resonance, Using pure reactance element to introduce a notch with adjustable center frequency. 2. A UWB band-pass filter based on half-wavelength step impedance branch loading resonator is designed. There are five transmission poles in the pass band of the filter. The filter structure is compact and small and easy to be machined. On this basis, the embedded branch structure is used flexibly, and the notch wave is introduced into the asymmetric input and output structure. Two bandpass filters with UWB band pass are designed: a double notch filter with 5.8 GHz / 8 GHz band pass filter and an electrically modulated notch wave UWB bandpass filter based on PIN transistor. 3. A UWB bandpass filter with notch wave at the center is designed. It is applied to an adaptive antenna interference detection subsystem. The scheme design and index decomposition of the subsystem are carried out, and then the main components are designed and studied. The simulation results show that the performance can meet the requirements of each module. The whole subsystem can realize the function of interference detection.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN713.5;TN820

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本文編號：1620561