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研究生:王東林
研究生(外文):Tong-Lin Wang
論文名稱:新式微型化枝幹耦合器設計與製作
論文名稱(外文):Design and Implementation of Compact Branch-Line Coupler Using π Type Quasi-Lumped Elements Approach
指導教授:廖時三
指導教授(外文):Shry-Sann Liao
學位類別:碩士
校院名稱:逢甲大學
系所名稱:資訊電機工程碩士在職專班
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:2006
畢業學年度:95
語文別:中文
論文頁數:64
中文關鍵詞:枝幹耦合器等差
外文關鍵詞:branch-line couplerequal difference
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在本論文中將提出三種縮小化枝幹耦合器,和傳統枝幹耦合器相比較在尺寸縮小比例上,第一種新式對稱π型枝幹耦合器的縮小比例為67%,第二種新式非對稱π型枝幹耦合器的縮小比例為66.2%,第三種新式等差型枝幹耦合器的縮小比例為63.8%,以上三種新式耦合器除了在面積上有縮小的效果外,其頻寬也有不錯的表現,特別是第三種等差型其頻寬可達360MHz(∠S21 -∠S31 within 90°±1°)。這三種的縮小化枝幹耦合器,頻率都設計在 2.4 GHz上,並且將其製作在FR-4 (εr=4.7;tanδ =0.022 ; thickness=0.8mm ; metal thickness= 0.02mm)銅箔基板上,最後由網路分析儀量測其結果,我們發現本論文所提出的縮小化枝幹耦合器,不僅在尺寸上縮小了,並具有單一平面且一次完成的優點,在製程上不需集總元件、跳線及鑽孔,更適用於微波積體電路及單石微波積體電路之設計應用上。
This essay outlines three kinds of compact-size branch-line couplers and a comparison between compact-size branch-line coupler and traditional branch-line coupler in scale-down size. By using the first novel symmetrical π branch-line coupler, it reduced the area of traditional branch-line coupler up to 67%. By using the second novel non-symmetrical π branch-line coupler, it reduced the area of traditional branch-line coupler up to 66.2%. By using the third novel equal difference pattern branch-line coupler, it reduced the area of traditional branch-line coupler up to 63.8%. The above three novel types of couplers not only have the effect of compact-size in area but have good performance in bandwidth, especially the third novel equal difference pattern, which bandwidth can reach 360 MHz(∠S21 -∠S31 within 90°±1°). The frequency of these three compact-size branch-line couplers is set to 2.4 GHz and the three 2.4 GHz couplers are fabricated on a FR-4 copper clad laminate (εr=4.7;tanδ =0.022; thickness=0.8mm ; metal thickness=0.02mm). Finally, the measurements have been carried out using a network analyzer. From the theoretical investigation it was found that these three compact-size branch-line couplers not only miniaturize in size but also have the merit of single planar and one-time implementation. Additionally, it doesn’t need lumped elements,bonding-wires, and via-holes,especially suitable for use in the application of design of MIC and MMIC.
中文摘要......i
英文摘要......ii
誌謝......iii
目錄......iv
圖目錄......vi
表目錄......x
第一章 緒論......1
1-1 前言......1
1-2 枝幹耦合器發展史......1
1-3 內容大綱......6
第二章 傳統單節枝幹耦合器分析與設計......7
2-1 四埠網路分析......7
2-2 枝幹耦合器......12
2-2-1 枝幹耦合器之分析......13
2-2-2 枝幹耦合器之設計......15
第三章 縮小化單節枝幹耦合器分析與設計......20
3-1 縮小化的等效電路架構.......20
3-2 Z1=Z3及θ1=θ3 縮小化枝幹耦合器設計.......21
3-2-1 設計與模擬......23
3-2-2 結果分析與討論......30
第四章 新式縮小化枝幹耦合器設計與製作......32
4-1 新式縮小化的等效電路架構......32
4-2 新式對稱π型(θ1=θ3)縮小化枝幹耦合器設計與製作......38
4-3 新式非對稱π型(θ1≠θ3 )縮小化枝幹耦合器設計與製作....47
4-4 新式等差型縮小化枝幹耦合器設計與製作......55
第五章 結論......61
參考文獻......62
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