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研究生:詹曜宗
研究生(外文):Yao-Zong Jhan
論文名稱:應用於X頻帶使用電容分壓技術之 低功耗四相位壓控振盪器設計
論文名稱(外文):An X-band Low Power Quadrature Voltage-controlled Oscillator Using Capacitive Divider Technology
指導教授:翁若敏
指導教授(外文):Ro-Min Weng
學位類別:碩士
校院名稱:國立東華大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
論文頁數:40
中文關鍵詞:電容分壓低功耗四相位壓控振盪器
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由於科技的進步,在近幾年來無線通訊的市場日益發展,將原本的有線傳輸系統提升至無線的傳輸,讓無線通訊系統變得更加的重要,在無線通訊的領域中,接收端和發射端的電路設計影響甚重,在射頻電路的設計上越來越重視於低功耗、電路面積小以及低相位雜訊。壓控振盪器(Voltage-controlled Oscillator;VCO)在前端電路的升頻及降頻過程中是非常重要的子電路,是否能將壓控振盪器和射頻與基頻的調變電路系統整合在同一顆晶片中,已成為了研究的重點之一。
本論文的晶片製程是由台灣積體電路製造公司(Taiwan Semiconductor Manufacturing Company;tsmc)所提供之tsmc 0.18 m 1P6M COMS製程技術來實現,為了應用在8GHz~12GHz的X頻帶上,文中所提出的低功耗四相位壓控振盪器電路中心頻率設定在10GHz,如廣播衛星、固定通訊業務衛星、地球探測衛星、氣象衛星等等,使用技術是電容分壓器和延遲的方式,主要以減少元件數量的方式來達到降低功率消耗,此電路操作於電壓0.8伏特,功率消耗為4.32毫瓦相位雜訊為距離載波頻率在1MHz處為-108.19dBc/Hz。

In recent years, wireless communications products market is growing due to advances in technology. The original cable transmission systems have been upgraded to wireless transmission systems, which allows wireless communication system becomes more important. In the field of wireless communications, the side effects of the receiver and transmitter design are very important. RF circuit design emphasis on low power consumption, small size and low phase noise. The VCO (Voltage-controlled Oscillator; VCO) is a very important sub-circuit in the ascending frequency on front end circuit design process. The system signals is capable of modulation by voltage controlled oscillator and RF and baseband integration into a single wafer, it has become one of the priorities for research.
In this paper, a tsmc 0.18 m 1P6M COMS process technology has provided to achieve the design cirait. The proposed VCO is oscillated at 8GHz~12GHz X-band. The proposed low-power four-phase voltage controlled oscillator circuit frequency is set at 10GHz. Such as broadcasting satellite and fixed satellite communications services, earth exploration satellite, and meteorological satellite, etc. Using the capacitive voltage divider and a delayed method, the number of components are reduced to achieve lower power consumption. This circuit is 0.8 V supply voltage. Power consumption is 4.32 mW. The phase noise at 1MHz from the carrier frequency is -108.19dBc / Hz.
目錄
誌謝.............................................................I
中文摘要.........................................................II
ABSTRACT...................................................... III
目錄............................................................IV
圖目錄...........................................................VI
表目錄.........................................................VIII
第一章序論........................................................1
1.1 研究背景與動機..............................................1
1.2 X頻帶介紹...................................................1
1.3 論文架構....................................................2
第二章壓控振盪器介紹與原理分析......................................3
2.1 壓控振盪器介紹..............................................3
2.1.1 振盪器分析..............................................3
2.1.2 環型振盪器(Ring Oscillator).............................4
2.1.3 電感電容諧振振盪器(LC-Tank Oscillator)...................5
2.1.4 傳統LC-Tank振盪器簡介....................................6
2.1.5 傳統四相位LC-Tank振盪器簡介..............................8
2.2壓控振盪器的相位雜訊..........................................9
2.2.1 相位雜訊的定義..........................................9
2.2.2 相位雜訊對通訊系統的影響.................................10
2.2.3 相位雜訊分析-熱雜訊[8]..................................11
2.2.4 相位雜訊分析-閃爍雜訊[8] ...............................13
2.2.5 相位雜訊分析-散彈雜訊[9]................................17
2.3壓控振盪器之特性參數.........................................17
2.3.1 功率消耗(Power Dissipation)............................17
2.3.2 可調頻率範圍(Tuning Range).............................17
2.3.3 輸出功率(Output Power).................................18
2.3.4 可調靈敏度(Tuning Sensitivity).........................18
2.3.5 線性度(Linearity)......................................18
2.3.6 負載變化(Load Pulling Figure)..........................18
第三章應用於X頻帶使用電容分壓技術之低功耗四相位壓控振盪器設計..........19
3.1電路架構與設計...............................................19
3.2模擬環境....................................................20
3.3緩衝電路....................................................20
3.4電路分析....................................................21
3.5模擬結果....................................................28
3.6電路佈局....................................................33
3.7結果討論....................................................35
第四章結論與未來研究方向...........................................37
4.1結論........................................................37
4.2未來研究方向.................................................37
參考文獻.........................................................39


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