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研究生:陳建樺
研究生(外文):Jian-Hua Chen
論文名稱:雙頻段2.4/5.2GHz壓控振盪器設計
論文名稱(外文):Design of the 2.4/5.2GHz Dual-Band VCO
指導教授:蔡明傑蔡明傑引用關係
指導教授(外文):Ming-Chieh Tsai
學位類別:碩士
校院名稱:大同大學
系所名稱:電機工程研究所
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:2003
畢業學年度:91
語文別:中文
論文頁數:49
中文關鍵詞:雙頻段vco切換共振槍
外文關鍵詞:switched resonatordual-band vco
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本論文的目標在於利用switched resonator的觀念來完成設計一可同時在 2.4/5.2GHz 雙頻操作的壓控振盪器 (VCO),並且在可調範圍及功率消耗的考量上取得一個很好的平衡點。在模擬及LAYOUT的過程中,皆是利用台積電所提供的 0.25μm 1P5M CMOS model 來完成的。此一雙頻壓控振盪器操作在 2.4GHz 及 5.2GHz 時,在 600-KHz offset 的相位雜訊分別為 —107 和 —104 dBc/Hz;同時二個不同的頻率在功率消秏表現上都大約是6.7mW。
This thesis presents the design of a switched resonator dual-band VCO which allows better trade-off between tuning range and power consumption. Based on TSMC 0.25μm 1P5M CMOS technology, the dual-band VCO operates near 2.4GHz and 5.2GHz with phase noise of -107 and -104 dBc/Hz at a 600-kHz. offset and ~6.7mW power consumption.
CONTENTS
ABSTRACT(IN CHINESE) I
ABSTRACT(IN ENGLISH) II
ACKNOWLEDGMENTS III
CONTENTS IV
LIST OF FIGURES VI
LIST OF ABLES IX
CHAPTER 1 INTRODUCTION 1
1.1 Motivation 1
1.2 Organization 2
CHAPTER 2 SPECIFICATIONS 3
2.1 A brief introduction to WLAN 3
2.1.1 The past history of WLAN 3
2.1.2 The Specifications of 802.11a 3
2.2 Phase noise 7
2.2.1 The definition of phase noise 7
2.2.2 Effect of phase noise in RF communications 9
2.3 Parameter Q of an Oscillator 11
CHAPTER 3 ANALYSIS OF OSCILLATORS 14
3.1 Analysis Methods 14
3.1.1 Positive Feedback (PFB) 14
3.1.2 Negative Resistance (NR) 17
3.2 LC Tank Oscillators 19
3.2.1 Basic LC Oscillator 19
3.2.2 Voltage-Controlled Oscillators (VCO) 20
3.2.3 TSMC MOS Varactor 21
3.3 CMOS LC Oscillators 24
3.3.1 Negative-Gm Oscillators 24
3.3.2 CMOS LC VCO Topologies 25
3.4 Ring Oscillator 29
CHAPTER 4 DESIGN OF THE DUAL-BAND VCO 31
4.1 Switched Resonator 31
4.2 Elements Model 35
4.2.1 Inductor 35
4.2.2 MOSFET 36
4.2.3 MIM Capacitor 37
4.3 Simulation Results 38
CHAPTER 5 CONCLUSIONS 47
REFERENCES 48
[1] A. Jayaraman et al., "A fully integrated broadband direct-conversion receiver for DBS applications," IEEE Int. Solid-State Circuit Conf., pp. 140-141, 2000.
[2] M. Pope, R. Crouch, and J. Gudewicz, "Dual-band Voltage controlled oscillators for personal communication," Microwave Journal, vol. 42, no. 4, pp.52-85, Apr. 1999.
[3] S. M. Yim and K. O. Kenneth, "Demonstration of a Switched Resonator Concept in a Dual-Band Monolithic CMOS LC-Tuned VCO," IEEE Custom Integrated Circuits Conference, pp. 205-208, 2001.
[4] "Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-speed Physical Layer in the 5 GHZ Band," LAN/MAN Standards Committee of the IEEE Computer Society, Sept. 1999.
[5] A. Hajimiri and T. H. Lee, "Design Issues in CMOS Differential LC Oscillators,"IEEE J. Solid-State Circuits, Vol. 34, No. 5, May 1999.
[6] J. Bhattachaijee, D. Mukheijee, E. Gebara, S. Nuttinck, and J. Laskar "A 5.8GHz Fully Integrated Low Power Low Phase Noise CMOS LC VCO for WLAN Applications," IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, June 2002.
[7] H. M. Wang, A. Hajimiri, and T. H. Lee, "Comments on design issues in CMOS differential LC oscillators," IEEE J. Solid-State Circuits, Vol. 35, No 2, Feb. 2000.
[8] P. Andreani and H. Sjoland, "Tail Current Noise Suppression in RF CMOS VCOs," IEEE J. Solid-State Circuits, Vol.37, No 3, Mar. 2001.
[9] D. Ham and A. Hajimiri, "Concepts and Methods in Optimization of Integrated LC VCOs," IEEE J. Solid-State Circuits, Vol. 36, No. 6, June 2001.
[10] Y. K. Chu and H. R. Chuang, "Design of 802.11a WLAN Receiver 5GHz U-NII Band Down-Converter RFICs," Department of EE NCKU, June 2002.
[11] H. R. Rategh, H. Samavati, and T. H. Lee, "A CMOS Frequency Synthesizer with an Injection-Locked Frequency Divider for a 5-GHz Wireless LAN Receiver," IEEE J. Solid-State Circuits, Vol. 35, No. 5, May 2000.
[12] B. Razavi, RF microelectronics. Upper Saddle River, NJ: Prentice-Hall, 1998.
[13] T. H. Lee, The Design of CMOS Radio-Frequency Integrated Circuits, Cambridge University, 1998.
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