臺灣博碩士論文加值系統

本論文設計四組雙模雙方環型/圓環型濾波器，其中主要是使用共平面波導技術與雙模微擾源於多頻與寬頻之應用。這四組設計中，利用共平面波導雙T型饋入法，在雙方環型/圓環型諧振器可激發出雙頻、三頻、四頻與寬頻等響應。應用上，由兩個同心環決定響應頻率，最多可獲得0.9 GHz、1.2G Hz、1.8 GHz與2.4 GHz四個頻段，適用於全球行動通訊系統、無線影像安全連結與無線區域網路的通訊系統之中。
其中不對稱摺疊式共平面波導饋入雙模雙方環型結構具有四個帶通特性，其響應特性包含低介入損耗（2.52/ 1.93/ 1.06/ 0.76 dB），通帶頻寬外的高衰減特性（-45/ -51/ -38/ -32/ -35 dB），並在0.94 GHz、1.29 GHz、1.9 GHz與2.32 GHz四個頻段呈現對稱性的頻寬（3.6 %/ 6.2 %/ 13.9 %/ 16.1 %）。同時利用新型的高介電係數材料–AIN，設計串聯雙方環型諧振器，以產生寬頻響應特性，它的介入損耗低（0.97 dB），通帶頻寬外的高衰減特性（-35.4/ -34.6 dB），在中心頻率2.25 GHz並呈現對稱性的寬頻（43.22 %）。

Novel design of dual-mode double square-loop/ring resonators using CPW-fed and dual-mode perturbations are applied for multi-band and wide-band applications. In the design, using CPW-fed with twin-T structure coupling to DMDSLR/DMDRR for dual-band, tri-band, quad-band, and wide-band are proposed in this thesis. For practice, due to two concentric rings determine the certain resonated frequencies, we can get 0.9/ 1.2/ 1.8/ 2.4 GHz quad bands in all and it can be applies to GSM system, wireless video security links and Wireless LAN systems communication system.
The quad-band be excited with asymmetric folded CPW-fed of DMDSLR. It exhibits a good performance including lower insertion loss (2.52/ 1.93/ 1.06/ 0.76 dB), higher out-of-band rejection level (-45/ -51/ -38/ -32/ -35 dB) and symmetry wider band (3.6 %/ 6.2 %/ 13.9 %/ 16.1 %) among 0.94/ 1.29/ 1.9/ 2.32 GHz quad bands respectively. In addition, we design the double square-loop on Aluminum Nitride (AIN) substrate, to have a wide-band bandpass response, with lower insertion loss (0.97 dB), deeper transmission zero level (35.4/ 34.6 dB) and wider bandwidth (43.22 %).

中文摘要…………………………………………………………………………………… i
英文摘要…………………………………………………………………………………… ii
誌謝………………………………………………………………………………………… iii
目錄………………………………………………………………………………………… iv
表目錄……………………………………………………………………………………… vii
圖目錄……………………………………………………………………………………… viii
第一章 緒論 ……………………………………………………………………………… 1
1.1 前言 ………………………………………………………………………… 1
1.2 研究動機 …………………………………………………………………… 1
1.3 背景回顧 …………………………………………………………………… 2
1.4 論文架構 …………………………………………………………………… 6
第二章 濾波器基本原理 ………………………………………………………………… 7
2.1 濾波器頻率響應 …………………………………………………………… 7
2.1.1 頻率響應分類 ………………………………………………………… 7
2.1.2 頻率響應特性 ………………………………………………………… 11
2.1.3 濾波器規格 …………………………………………………………… 12
2.2 濾波器類型 ………………………………………………………………… 14
2.2.1 集總式濾波器 ………………………………………………………… 14
2.2.2 分佈式濾波器 ………………………………………………………… 16
第三章 環型濾波器基本原理 …………………………………………………………… 21
3.1 單環型濾波器………………………………………………………………… 21
3.1.1 基本原理 ……………………………………………………………… 21
3.1.3 雙模技術 ……………………………………………………………… 26
3.2 雙模雙環型濾波器…………………………………………………………… 26
3.2.1 共平面波導原理 ……………………………………………………… 29
3.2.2 基本原理……………………………………………………………… 29
3.2.2設計架構………………………………………………………………… 30
第四章 共平面波導雙模雙環型/方型帶通濾波器之設計 …………………………… 32
4.1典型共平面波導雙模方環型帶通濾波器…………………………………… 32
4.2設計一：共平面波導雙頻濾波器…………………………………………… 34
4.1.1方環型…………………………………………………………………… 34
4.1.2環型……………………………………………………………………… 41
4.3 設計二：共平面波導多頻濾波器…………………………………………… 48
4.2.1 三頻濾波器…………………………………………………………… 48
4.2.2 四頻濾波器…………………………………………………………… 53
4.4 設計三：共平面波導寬頻濾波器…………………………………………… 57
4.3.1 加擾雙方環型………………………………………………………… 57
4.3.2 加擾雙圓環型………………………………………………………… 63
4.5 設計四： 氧化鋁基板寬頻濾波器………………………………………… 66
第五章 模擬與量測……………………………………………………………………… 71
5.1 設計一：共平面波導雙模雙頻濾波器……………………………………… 73
5.1.1 模擬 …………………………………………………………………… 73
5.1.2 頻率響應 ……………………………………………………………… 74
5.1.4 結果分析 ……………………………………………………………… 76
5.2 設計二：共平面波導多頻雙模濾波器……………………………………… 77
5.2.1 模擬 …………………………………………………………………… 77
5.2.2 頻率響應 ……………………………………………………………… 78
5.2.4 結果分析 ……………………………………………………………… 80
5.3 設計三：共平面波導寬頻濾波器…………………………………………… 81
5.3.1 模擬 …………………………………………………………………… 81
5.3.3 頻率響應 ……………………………………………………………… 82
5.3.5 結果分析 ……………………………………………………………… 84
5.4設計四：氧化鋁材料寬頻濾波器……………………………………………… 85
5.2.1 模擬 …………………………………………………………………… 85
5.2.2 頻率響應 ……………………………………………………………… 85
5.2.4 結果分析 ……………………………………………………………… 85
5.5 多頻濾波器、氧化鋁基板寬頻濾波器與巴特渥斯濾波器………………… 87
5.6.1 四頻濾波器 …………………………………………………………… 87
5.6.2 氧化鋁基板寬頻濾波器 ……………………………………………… 87
5.6.3 柴比雪夫濾波器 ……………………………………………………… 88
5.6.4 結果分析 ……………………………………………………………… 91
第六章 結論 ……………………………………………………………………………… 92
參考文獻…………………………………………………………………………………… 93
簡歷………………………………………………………………………………………… 104

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