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研究生:陳冠宇
研究生(外文):Chen, Kuanyu
論文名稱:共振器參數定義及其應用
論文名稱(外文):Characterization Methodology Of Cavity Parameter Extraction And Applications
指導教授:傅坤福
指導教授(外文):Fuh, Kuenfwu
口試委員:盧坤勇胡正南
口試委員(外文):Lu, KunyungHu. Chengnan
口試日期:2012-06-27
學位類別:碩士
校院名稱:國立聯合大學
系所名稱:電子工程學系碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:49
中文關鍵詞:共振器品質因素介質損耗介電常數
外文關鍵詞:ResonatorsQ factorLoss taangentDielectric constant
相關次數:
  • 被引用被引用:0
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  • 下載下載:38
  • 收藏至我的研究室書目清單書目收藏:0
品質因素(Q)和共振頻率(f0)為描述共振電器特性的重要參數,藉由量測它們可預測共振器相關應用電路之響應,如何量測到的品質因素和共振頻率f0,並藉此還原出共振器的實際電氣和材料組成參數是本篇論文所探討的重點。在本論文中,我們利用陶瓷同軸共振器作為實驗驗證載具,量測其反射係數並利用Linear Fractional Curve Fitting的方法還原出共振腔的品質因素與共振頻率,再來結合陶瓷同軸共振器的電氣和物理模型還原出陶瓷同軸共振器的特性阻抗、本質共振頻率和陶瓷同軸共振器的材料介電特性。所推導之模型可利用諧和共振做寬頻共振腔特性萃取,也可用於同軸共振器製程品質的評估。
關鍵字:共振器、品質因素、介質損耗、介電常數

Quality factor (Q) and resonant frequency (f0) are important parameters to characterize electrical resonators and predict the responses of the circuits associated with them.Extracting the electrical and material parameters of a resonator through quality factor and resonant frequency measurement is the object of this paper. The conventional linear fractional curve fitting procedure is firstly used to recover the unloaded quality factor and loaded resonant frequency of a ceramic coaxial resonator; then characteristic impedance, intrinsic resonant frequency, propagation constant, and permittivity of the constituent material of the ceramic coaxial resonator are accurately extracted by the aids of the other sophisticated electrical and physical models that describe the real measurement situations. By measuring harmonic resonant modes this methodology can recover wideband electrical behaviors of ceramic coaxial resonator; it can also be extend to monitor the quality of manufacturing process of ceramic coaxial resonator.
Keywords: Resonator, Q factor, loss tangent, dielectric constant

致謝 I
中文摘要 II
英文摘要 III
目錄IV
第一章 研究動機 1
1-1 品質因素定義 2
1-2 耦合係數(κ)定義 4
1-3 介電常數與介電損耗(tanδ) 6
第二章 品質因素量測方法 9
2-1 反射係數相位量測法 9
2-2 傳輸法 11
2-3 Impedance 方法 12
2-4 Linear Fractional Curve Fitting 15
2-5綜合討論 19
第三章 陶瓷同軸共振器材料與電氣參數還原 20
3-1陶瓷同軸共振器量測模型 20
3-2共振器金屬之品質因素分析 23
3-2-1共振腔內外層金屬品質因素分析方法 23
3-2-2 終端短路端之金屬品質因素分析方法 25
第四章 Linea Fractional Curve Fitting理論模型驗證 27
4-1 擷取頻寬對結果的影響 28
4-2 量測點數對結果之影響 30
4-3 資料擷取位置對於量測結果之影響 32
4-4 電抗耦合對於結果之影響 35
4-5 傳輸線效應對結果之影響 38
第五章 共振腔量測結果 40
第六章 結論 47
參考文獻 48

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[15]Application Note No.1008 Trans-tech, “Coaxial Resonators for VCO Applications”

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