利用數個多重路徑分支負載共振器之多頻帶多工器

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姓名

陳冠涵(Kuan-Han Chen) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

利用數個多重路徑分支負載共振器之多頻帶多工器
(Multiband Multiplexers by Using Multipath Stub-Loaded Resonators)

相關論文

★ 應用於微波之多頻帶通濾波器之設計	★ 使用可開關式帶通濾波器之低相位雜訊雙頻振盪器研製
★ 共平面波導饋入槽孔偶極天線之寬頻與多頻應用	★ 可具任意通帶之可調式多工器
★ 利用非對稱步階式阻抗設計寬通帶寬止帶雙工器	★ 基於散佈式耦合饋入架構之可開關式帶通濾波器
★ 共平面波導饋入之寬頻雙圓極化天線	★ 基於多共振路徑所設計之印刷式多頻帶天線
★ 四通道可切換式帶通濾波器之研究	★ 雙模態寬阻帶之基板合成波導濾波器
★ 微小化倍頻壓抑直交分合波器之研製	★ 可繞式小型偶極天線之研製
★ 使用多重模態共振器實現多功能帶通濾波器	★ 應用於Radio-over-Fiber系統之超高速微波光子發射器
★ 使用長饋入線架構研製小型且具有高隔絕度的多工器	★ 具有寬截止頻帶的帶通濾波器之研製

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摘要(中)

本論文中提出四頻帶雙工器、四頻帶帶通濾波器與八頻帶四工器。多頻多工器使用散佈式耦合饋入技術，使得電路有低負載效應且不需要額外複雜的匹配電路。多重路徑分支負載共振器為本論文設計電路的主軸，每一個多重路徑分支負載共振器會產生兩個操作頻率，操作頻率可以藉由調整共振路徑長度來決定。本文所設計的八頻帶四工器由一條輸入饋入線、四條輸出饋入線、兩組多重路徑分支負載步階式阻抗共振器以及兩組多重路徑分支負載均勻阻抗共振器來實現。利用步階式阻抗與在倍頻時的外部品質因素不匹配的方法來達到推移倍頻與抑制倍頻的產生，實現寬止帶的效果，同時步階式阻抗也有縮小面積的特性。綜合上面所述，此電路具有電路面微小化、頻帶高選擇度與設計的高自由度的特性，此電路面積為0.34λg * 0.19λg，頻帶間的隔離度有32 dB以上的抑制。

摘要(英)

In this thesis, the quad-channel diplexer, quad-band bandpass filter and octa-channel quadplexer are presented. These three circuits are using distributed coupling technique to achieve low loading effect and can obtain many channels without complicated matching network. The multipath stub loaded resonators is designed to have two resonant path, and the resonant frequencies can be easily controlled by tuning length for each resonant path in the multipath stub loaded resonators. The octa-channel quadplexer is composed of two set of multipath stub loaded stepped impedance resonators(SIR) and two set of multipath stub loaded uniform impedance resonators (UIR)with one long distribute input feeding line and four output feeding line. UIR structures and un-matching Q-factor at harmonic frequency were used to suppress harmonic, through which widestopband was achieved. And meanwhile UIR structures has characteristic of reduce the size of circuit. In short, the filters have advantages of compact size, high passband selectivity and high design freedom. As a result, the proposed octa-channel quadplexer occupies an exceedingly small circuit size, i.e., 0.34λg by 0.19λg, while still having good isolation better than 32 dB for each channel.

關鍵字(中)

★ 多工器
★ 四頻帶通濾波器
★ 四工器

關鍵字(英)

★ multiplexer
★ quad-band bandpass filter
★ quadruplexer

論文目次

摘要 I
Abstract II
目錄 III
圖目錄 IV
表目錄 VI
第一章緒論 1
1.1　研究動機 1
1.2　文獻參考 2
1.3　論文架構 5
第二章利用二分之一波長與四分之一波長共振器架構 6
2.1　簡介 6
2.2　帶通濾波器設計 6
2.3　散佈式耦合饋入架構之設計 8
2.4 雙頻帶通濾波器設計 9
2-5 耦合分析與外部品質因數分析 11
第三章使用均勻阻抗共振器架構設計四頻帶雙工器 21
3.1　簡介 21
3.2　四頻帶雙工器結構 21
3.3 四頻帶雙工器結構之設計 23
3-4四頻帶雙工器模擬與量測結果 31
3-5四頻帶帶通濾波器結構之設計 33
3-6四頻帶帶通濾波器模擬與量測結果 39
第四章使用步階式阻抗共振器架構設計之八頻帶四工器 41
4-1步階式阻抗共振器分析 41
4-2 八頻帶四工器之結構 43
4-3八頻帶四工器之設計 45
4-4八頻帶四工器的模擬與量測結果 60
第五章結論 63
參考文獻 65

參考文獻

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指導教授

凃文化(Wen-Hua Tu)

審核日期

2017-7-10

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