本論文研製可應用於2.4 GHz ISM頻帶之注入鎖定振盪器、整數型與分數型相位與自我注入鎖定雷達系統，利用鎖相迴路機制實現不同於SIL雷達使用正交解調器及延遲單元的解調方式，並解決SIL雷達在硬體層面上的限制，如難以小型化、非單一操作頻率而佔據頻寬、相位雜訊較差等問題，使雷達應用更廣泛。本次設計的相位與自我注入鎖定雷達感測性能稍優於SIL雷達，同時整體電路適合小型化，鎖相迴路機制使操作頻率單一，並由鎖相迴路抑制相位雜訊，使雷達能夠偵測較遠目標，操作頻率可透過改變除數精準調整。分數型相位與自我注入鎖定雷達保留整數型相位與自我注入鎖定雷達之優勢，實現更小的操作頻率調整間隔，在相同頻寬內可同時操作多組雷達。
實驗章節中，整數型與分數型相位與自我注入鎖定雷達皆可感測距離天線5公尺，擺幅0.5 mm的金屬板擺動，並比較不同雷達架構感測性能，比較結果依序為整數型相位與自我注入鎖定雷達、分數型相位與自我注入鎖定雷達、SIL雷達、最後是連續波雷達。應用SIL現象的雷達架構訊雜比表現皆大於傳統雷達架構20 dB以上，生理徵象感測實驗使用分數型相位與自我注入鎖定雷達，透過相移器解決感測無效點，完成近距離非接觸式人體生理徵象感測，感測結果與同步感測的呼吸帶、PPG及指尖血氧儀的數據一致。

This thesis focuses on the development of an injection-locked oscillator and both integer and fractional-phase self-injection-locked radar for the 2.4 GHz ISM band. Utilizing a phase-locked loop mechanism, our approach introduces a decoding method distinct from traditional SIL radar, addressing hardware limitations. The designed integer-phase self-injection-locked radar exhibits slightly superior sensing performance to SIL radar, suitable for miniaturization. The phase-locked loop ensures a single operating frequency, suppressing phase noise for enhanced target detection. The fractional-phase self-injection-locked radar retains advantages, achieving a smaller operating frequency adjustment interval, facilitating simultaneous operation of multiple radars. In experiments, both radars successfully sensed a metallic plate with 0.5 mm amplitude movements at a distance of 5 meters. Comparative analysis showed the superiority of the integer-phase self-injection-locked radar over the fractional-phase counterpart, SIL radar, and continuous wave radar. Leveraging the SIL phenomenon resulted in consistently superior signal-to-noise ratios exceeding 20 dB compared to continuous wave radar. Physiological signal sensing using the fractional-phase self-injection-locked radar achieved non-contact sensing, aligning consistently with synchronous measurements from a respiratory belt, PPG, and fingertip pulse oximeter.

論文審定書 i
論文公開授權書 ii
致謝 iii
摘要 iv
Abstract v
目錄 vi
圖次 vii
表次 x
第一章 序論 1
1-1 研究背景與動機 1
1-2 文獻回顧 2
1-3 相位與自我注入鎖定雷達 4
1-4 章節規劃 5
第二章 注入鎖定振盪器理論分析、實作與量測結果 6
2-1 Adler 方程式推導 6
2-2 SIL 模型分析 9
2-3 注入鎖定振盪器實作與量測 10
第三章 相位與自我注入鎖定雷達系統理論分析與實作 17
3-1 鎖相迴路與自我注入鎖定現象 17
3-2 鎖相迴路晶片與參數選擇 24
3-3 相位與自我注入鎖定雷達實作 29
3-4 閉迴路實驗 33
3-5 基頻放大器設計 36
第四章 非接觸式感測實驗設置與量測結果 40
4-1 金屬板感測實驗 40
4-2 雷達感測性能比較 46
4-3 生理徵象感測實驗 51
第五章 結論與未來展望 57
參考文獻 58

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