臺灣博碩士論文加值系統

本篇論文以理論推導計算、數值模擬和實驗方法應用於開放式共振腔來量測材料之介電常數。主要是在Ka-band 的35GHz 附近去做量測。理論上是應用光學Gaussian Beam的模型加上微擾理論去計算介電常數。實驗上是利用HP8510 網路分析儀去做量測，主要量測材料是Teflon 為樣本。
數值模擬軟體主要是利用HFSS10去做模擬。實驗所量測到的
值和已知論文量測值比較，電場平行樣品的介電常數誤差約6%，而電場垂直樣品的介電常數誤差約1%。結果與大部分已知論文相近。

第一章 簡介........................ 1
1.1概述........................... 1
1.2材料的介電性質................. 1
1.3介電常數的量測................. 3
第二章 微擾法理論推導.............. 7
2.1腔體微擾法..................... 7
2.2介質微擾法..................... 9
第三章 開放式共振腔理論推導........ 13
3.1高斯光束傳播方程式............. 13
3.2邊界條件....................... 15
3.3 TEM的高次模................... 16
3.4 Hermite-Gaussian模的共振頻率.. 17
第四章 模擬結果與討論.............. 18
4.1 簡介.......................... 18
4.2高斯理論與HFSS的驗證.......... 19
4.2.1驗証場型.................. 19
4.2.2 利用HFSS模擬實驗......... 21
第五章 實驗結果與討論............ 24
5.1 實驗儀器及操作.............. 24
5.1.1 實驗儀器簡介.............. 24
5.1.2 實驗過程.................. 25
第六章 結論........................ 32
附錄................................ 33
參考資料............................ 34

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