本論文研究自我注入鎖定雷達(SIL RADAR)的訊號解調機制，運用鎖相迴路(Phase-Locked Loop)的方式，做到頻率解調(Frequency Demodulation)，實現無線生理訊號感測。相較於以往使用SIL雷達的IQ解調(IQ demodulation)需要使用延遲單元(delay unit)，鎖相迴路頻率解調機制具有可積體電路化等優點。
本論文分三部分，第一部份為研究動機與文獻回顧，第二部份為鎖相迴路頻率解調器的設計。第三部份為自我注入鎖定雷達使用鎖相迴路頻率解調器的實際量測。最後有延伸討論以及本篇論文的研究結論。

In this thesis, the signal demodulation mechanism of self-injection-locked radar (SIL RADAR) is studied. The usage of Phase-Locked Loop(PLL) is implemented for frequency demodulation in order to combine with SIL RADAR to realize wireless physiological signal sensing. Compared with the previous researches using IQ de-modulation for SIL radar, a delay unit is needed in those architectures, the PLL-based frequency demodulation technique has the advantages of IC implementability.
This thesis is divided into three parts, the first part is research motivation and literature review, and the second part is the design of PLL-based frequency demod-ulator. The third part is the actual measurement of human vital sign using the SIL RADAR combined with PLL-based frequency demodulator. Finally, there is an ex-tended discussion and at last the conclusions of this thesis.

論文審定書 i
摘要 ii
Abstract iii
目錄 iv
圖次 vi
表次 viii
第一章 緒論 1
1.1 研究背景與動機 1
1.2 文獻回顧 3
1.2.1 頻率解調(FM demodulation) 3
1.2.2 SIL雷達與訊號微分頻率解調 4
1.2.3 Phase- and Self-injection locked雷達 5
1.3 章節規劃 6
第二章 鎖相迴路頻率解調器 7
2.1 鎖相迴路解調推導與分析 7
2.1.1 工作原理分析 8
2.1.2 頻域模型分析 9
2.2 相位頻率偵測器(Phase-Frequency Detector)的選擇 11
2.3 振盪器(Oscillator) 13
2.3.1 壓控振盪器(Voltage Control Oscillator) 13
2.3.2 具注入埠壓控振盪器(VCO with injection port) 15
2.4 迴路濾波器(Loop Filter) 16
第三章 自我注入鎖定雷達量測 20
3.1 實驗驗證 20
3.2 2.4 GHz自我注入鎖定雷達 25
3.3 5.8 GHz自我注入鎖定雷達 30
第四章 討論 36
第五章 結論 39
參考文獻 40

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