發(fā)布時(shí)間：2018-01-09 01:08

  本文關(guān)鍵詞：基于左手傳輸線濾波器研究　出處：《天津大學(xué)》2016年博士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 左手傳輸線 雙通帶帶通濾波器 梳狀濾波器 雙模濾波器

【摘要】：左手材料由于其獨(dú)特的電磁特性,近些年已經(jīng)成為電磁領(lǐng)域熱門的研究課題之一。然而,目前對(duì)于左手傳輸線的研究還處于探索階段,還有很多理論與實(shí)踐的工作需要補(bǔ)充。本文在對(duì)CMOS傳輸線波導(dǎo)特性進(jìn)行詳細(xì)分析的基礎(chǔ)上,設(shè)計(jì)并制作了基于雙重行為(Dual-Behavior)諧振器的帶通濾波器與右手梳狀濾波器,基于左手傳輸線的雙通帶濾波器、梳狀濾波器與雙模濾波器。首先,通過(guò)對(duì)CMOS工藝中的傳統(tǒng)微帶傳輸線與人工合成的互補(bǔ)傳導(dǎo)傳輸線的波導(dǎo)特性的萃取,論證了運(yùn)用CMOS工藝制作太赫茲濾波器的可行性,并設(shè)計(jì)制作了基于雙重行為諧振器的帶通濾波器與右手梳狀濾波器。其次,本文提出了一種新型的雙通帶諧振器,以及基于該諧振器的雙通帶濾波器。該雙通帶諧振器由開(kāi)路的左手傳輸線與開(kāi)路右手傳輸線并聯(lián)構(gòu)成,在此諧振器中,開(kāi)路右手傳輸線在其四分之波長(zhǎng)頻率處引入一個(gè)傳輸零點(diǎn);左手傳輸線在其電角度小于π/4時(shí),與右手傳輸線形成并聯(lián)諧振,引入傳輸極點(diǎn);在其電角度為π/4與π/2時(shí)分別等效為串聯(lián)諧振和并聯(lián)諧振,引入傳輸零點(diǎn)與傳輸極點(diǎn);左手傳輸線自身的高通波導(dǎo)特性,可以濾除不需要的低頻信號(hào)。此外,左手傳輸線具有較大的慢波系數(shù),這極大地縮小了諧振器的尺寸。再次,本文提出了基于左手傳輸線的梳狀濾波器架構(gòu)。與傳統(tǒng)的基于右手傳輸線的梳狀濾波器相比,左手梳狀濾波器的諧振器中的左手傳輸線一側(cè)加載接地電容,而另一側(cè)開(kāi)路。通過(guò)對(duì)加載負(fù)載電容的左手諧振器的諧振特性、左手諧振器之間的耦合特性、以及左手梳狀濾波器的輸入/輸出耦合結(jié)構(gòu)的系統(tǒng)分析,詳細(xì)闡述了左手梳狀濾波器的設(shè)計(jì)方法。同時(shí),由于左手傳輸線的獨(dú)特波導(dǎo)特性,左手梳狀濾波器的寄生通帶位于其主通帶的低頻側(cè)。最后,本文提出了基于左手傳輸線的雙模濾波器架構(gòu)。該左手雙模濾波器工作于負(fù)階諧振模式。左手環(huán)形諧振器的諧振頻率可以由左手傳輸線的波導(dǎo)特性、左手傳輸線單元結(jié)構(gòu)的周期、以及諧振器中所包含的單元結(jié)構(gòu)的數(shù)目計(jì)算得到。左手環(huán)形諧振器的雙模特性可以通過(guò)調(diào)節(jié)微擾電容大小、微擾電感長(zhǎng)度與插入右手傳輸線來(lái)激發(fā)。本文還對(duì)左手環(huán)形諧振器的電流分布進(jìn)行了研究。在進(jìn)行濾波器設(shè)計(jì)時(shí),為了獲得較大的耦合系數(shù),本文將三種微擾方式有機(jī)的結(jié)合在一起,制作出了具有傳統(tǒng)右手雙模濾波器很難實(shí)現(xiàn)的帶寬的雙模濾波器。
[Abstract]:The left hand material because of its unique electromagnetic properties, in recent years has become one of the hot topics in electromagnetic fields. However, current studies on the left-handed transmission line is still in the exploratory stage, there are many theoretical and practical work needs to be added. This paper detailed analysis of CMOS waveguide transmission line characteristic, designed and fabricated based on double act (Dual-Behavior) band-pass filter and comb filter resonators of the right hand, left hand transmission line Dual Band Bandpass Filter Based on comb filter with dual mode filter. Firstly, extraction by traditional waveguide microstrip transmission line of CMOS technology and synthesis of the complementary transmission transmission line, demonstrates the feasibility of making use of terahertz filter CMOS process, making the band-pass filter and the right hand comb filter design based on dual behavior resonator. And secondly, this paper. A new type of dual band resonator, the resonator and the double pass band filter. Based on the dual band resonator composed of left-handed transmission lines open and open the right hand transmission line connected in parallel, the resonator, open the right hand transmission line at a wavelength of four frequency into a transmission zero; left-handed transmission line the electrical angle is less than /4, the formation of resonance with a right-handed transmission line is introduced in the power transmission pole; angle /4 and Pi Pi /2 were equivalent to the series and parallel resonant, introducing the transmission zeros and poles; high pass waveguide characteristics of left-handed transmission line itself, can filter the low frequency signal. In addition, the left hand transmission line with slow wave coefficient, which greatly reduces the dimensions of the resonator. Thirdly, proposed a comb filter architecture based on left-handed transmission line. With the traditional right-handed transmission line based on the The left hand side comb filter compared to transmission line loading left comb filter resonators in the grounded capacitor, and the other side of the open circuit. Through the resonant characteristics of the resonator loaded the capacitance of the left hand, left hand coupling between the resonators, and the analysis of the system left comb filter input / output coupling structure, elaborates the design method of the left hand comb filter. At the same time, due to the unique optical properties of left-handed transmission line, parasitic left comb filter pass band is located in the main through low frequency side band. Finally, the proposed dual-mode filter architecture based on left-handed transmission line. The left hand dual-mode filters work in a negative order resonant modes. Waveguide resonant frequency of left ring resonator the left-handed transmission line cycle, left-handed transmission line unit structure, and the number of elements contained in the resonator structure calculation Get a dual-mode ring resonator. Left-handed properties can be adjusted by the perturbation capacitance, inductance and micro disturbance insert right-handed transmission line length to inspire. The left hand ring resonator is studied. The current distribution in the filter design, in order to obtain a large coupling coefficient, the three perturbation mode combination together, making a dual-mode filter is difficult to achieve with traditional right dual-mode filter bandwidth.

【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類號(hào)】：TN713

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