莊晴光Tzuang, Ching-Kuang C.臺灣大學:電信工程學研究所蕭偉成Xiao, Wei-ChengWei-ChengXiao2010-07-012018-07-052010-07-012018-07-052009U0001-0408200921293400http://ntur.lib.ntu.edu.tw//handle/246246/188319本論文利用0.18微米互補性金屬氧化物半導體(CMOS)製程，提三個24GHz微波壓控振盪器應用在K頻段之調頻連續波(FMCW)雷達系統。電路設計方面，三個壓控振盪器皆包含兩個調頻機制，其一為粗調機制，具有較大調頻範圍，用來修正震盪頻率並可與鎖相迴路結合，另一為微調機制，設計較小的調頻範圍，以符合系統調頻之應用。在第三章中，第一個壓控振盪器採用二倍頻訊號輸出，並與後端四級放大器結合，以提供足夠的本地訊號輸出功率給後端混頻器使用；第二個壓控振盪器則為基頻震盪器，並包含一溫度補償之偏壓電路，降低壓控振盪器之震盪頻率隨溫度變異的程度。最後，利用雜訊匹配技巧，提出一低相位雜訊震盪器。被動元件方面，使用互補式金屬圖案所構成合成傳輸線(CCS TL)、MOM電容、MOS 可變電容。This thesis presents a 24 GHz microwave voltage control oscillator for K-band Frequency Modulated Continuous Wave (FMCW) Radar System which is realized in 0.18 um CMOS process. At circuit design level, three VCOs have two control voltages for tuning frequency. One is coarse control, which has larger tuning region for revising oscillating frequency. Another is fine control, which has smaller tuning region for frequency modulation of FMCW radar. In chapter 3, A second harmonic VCO including four stage amplifier provides sufficient LO signal for mixer. Secondary, a fundamental VCO including temperature compensated bias circuit reduces the variation of the oscillating frequency with temperature. Finally, a low phase noise VCO by noise matching design is presented. Complementary-conducting-strips (CCS) transmission line, Metal-oxcide-metal capacitors and MOS varactors are used as passive components.口試委員會審定書 #謝 i文摘要 iiBSTRACT iiiONTENTS ivIST OF FIGURES viIST OF TABLES ixhapter 1 Introduction 1.1 Background and Research Motivation 1.2 Thesis Organization 6hapter 2 Design Considerations of Voltage Control Oscillator 7.1 Introduction 7.2 Fundamental of VCO 7.2.1 LC VCO mechanisms 7.2.2 Tuning Issues 13.2.3 Concepts of Phase Noise 14.3 Passive Components 16.3.1 Complementary-Conducting-Strip Transmission Line 16.3.2 Varactors 19hapter 3 Second Harmonic Voltage Control Oscillator 23.1 Mode Analysis of Second Harmonic Oscillator 23.2 CCS TL Based Inductor 26.3 Voltage Control Oscillator Design 30.4 Measurement Result and Modification 34hapter 4 Temperature Compensated Voltage Control Oscillator 41.1 Temperature Compensated Bias Circuit 41.2 Voltage Control Oscillator Design 43.3 Measurement Result 46hapter 5 Low Phase Noise Voltage Control Oscillator 51.1 Analysis of the Proposed VCO 51.2 Simulated Results 54.3 Measurement Result 58hapter 6 Conclusion 61EFERENCE 642293647 bytesapplication/pdfen-US壓控振盪器調頻連續波雷達Voltage Control OscillatorFMCWthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/188319/1/ntu-98-R96942071-1.pdf