本論文實現一套結合穿戴式微帶天線和單頻自我注入鎖定連續波雷達、距離相關連續波雷達雙模式架構的非接觸式雷達系統，並使用實驗室Labview軟體進行數據收集，達到生理訊號監測和脈搏傳遞時間的量測。首先簡要設計三組天線，分別為矩形微帶天線、環形微帶天線、和軟板天線做模擬和量測並加上其人體接近效應的影響。接著將這些天線應用在具有自我注入鎖定和距離相關雷達雙模式機制的單頻連續波雷達系統上，利用一顆具有注入端的壓控振盪器發出訊號經由分配器到胸腔和手腕的天線，一路訊號進行距離相關雷達架構的IQ解調，另一路則經由自我注入鎖定機制進行頻率解調，因此可同時量測到心跳以及脈搏的生理訊號，藉由量測到的心跳和脈搏波型尖峰時間差，發現其與醫學上使用的脈搏傳遞時間具有高度的相關性，本實驗利用Biopac公司的MP150生理訊號監測儀器，其採用心電訊號和光體積變化描記圖作為本實驗量測脈搏傳遞時間的參考標準進行比較，並以血壓計紀錄脈搏傳遞時間與血壓的關係。本論文之穿戴式生理監測雷達系統相較於傳統的接觸式的儀器，具有低成本、方便攜帶、舒適的特性。

This thesis presents a non-contact radar system. This non-contact radar system uses wearable microstrip antenna in a single-frequency continuous-wave radar which operates concurrently with two different modes. The two different modes are: self-injection-locked CW mode (SIL mode) and range-correlated CW mode (RC CW mode). Then, the Labview software is used to collect the data and calculate the pulse transmit time.
To conduct this experiment, three antennas are designed first. These three antennas are: rectangular microstrip antenna, loop microstrip antenna, and flexible antenna. These three antennas are used in the radar system to detect human’s pulse and heartbeats. Also, the influences of human body on the antenna are taken into consideration. Second, these three antennas are applied in the radar system, operating with two modes, ie, SIL mode and RC CW mode. The radar system utilizes a voltage control oscillator with injection port to transmit RF signal to wrist and chest antennas through the power splitter. The wrist antenna detects movement due to pulse and makes oscillator enter the SIL state. And thus, a frequency demodulator can be used to obtain the waveform of pulse. On the other hand, the chest antenna detects the movements due to heartbeats and then an IQ demodulator can be used to obtain the waveform of heartbeats.
Based on Biopac company’s pulse transit time measurement using electrocardiography and photolethysmography sensors, the results show that the peak time difference between the two resultant output signals in the radar system is closely correlated with the pulse transit time. Compared to other contact sensors, the presented wearable physiological monitoring radar system takes the advantages of low cost, convenience, and comfort.

論文審定書 i
論文公開授權書 ii
誌謝 iii
摘要 iv
Abstract v
目錄 vi
圖次 vii
表次 x
第一章 緒論 1
1.1 研究背景與動機 1
1.2 血壓量測方法與脈搏傳遞時間 2
1.3 章節規劃……. 7
第二章 天線設計 8
2.1 矩形微帶天線設計 8
2.2 環形微帶天線設計 14
2.3 軟板天線設計 20
2.3.1基板參數萃取 20
2.3.2軟板天線設計 24
第三章 利用單頻連續波測量脈搏傳遞時間 30
3.1 自我注入鎖定雷達簡介 30
3.2 實驗系統架構 32
3.3 實驗設置與量測結果 34
第四章 結論 44
參考文獻 46
附錄A……….. 49

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