基於散佈式耦合饋入架構之可調式多頻帶通濾波器

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姓名

鄭亦晽(I-Lin Cheng) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

基於散佈式耦合饋入架構之可調式多頻帶通濾波器

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摘要(中)

本論文提出使用散佈式耦合饋入技術以及步階式阻抗共振器(stepped-impedance resonator, SIR)的多頻帶通濾波器，由於散佈式耦合饋入技術的低負載效應，因此不需要額外的阻抗匹配電路。而步階式阻抗共振器具有縮小電路面積的功能，以及控制高頻諧波的位置。此兩種技術皆適合應用於設計多頻帶通濾波器。
利用上述架構，在步階式阻抗共振器加上變容二極體，來達到具有可調整中心頻率之特性，且在通帶內頻率響應特性不變。每個通帶的共振路徑皆為獨立的，所以各個通帶皆能獨立設計和調整其中心頻率，故在電路設計上具有良好的自由度。於本論文中有多頻帶通濾波器以及可調式多頻帶通濾波器的設計原理、模擬結果與實作結果，最後利用實作之電路來驗證設計的方法是有效的。

摘要(英)

This thesis presents multi-band bandpass filter and tunable multi-band bandpass filter using distributed coupling technique and stepped-impedance resonator. Due to the low loading effect from distributed coupling technique, the proposed circuits does not need extra matching network. The stepped-impedance resonator can reduce the circuit size and control the harmonic. Both technologies are suitable for designing multi-band bandpass filter.
Based on this structure, varactors are added to the SIR. For achieving the center frequency can be tuned, and the performance in the passband is invariant. Because the coupling path of each passband is independent, each passband can be fully controlled and designed independently. Therefore, the circuit design has high design freedom. All of the designs, simulations, and measurements are presented and discussed in this thesis. Finally, good agreement is also achieved between simulation and measurement.

關鍵字(中)

★ 濾波器
★ 步階式阻抗共振器
★ 散佈式耦合
★ 可調式
★ 多頻帶

關鍵字(英)

論文目次

摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vi
表目錄 viii
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 7
第二章利用步階式阻抗共振器與散佈式耦合饋入架構之多頻帶通濾波器 8
2-1 利用步階式阻抗與散佈式耦合饋入架構之帶通濾波器 8
2-1.1 步階式阻抗共振器的設計原理 8
2-1.2 饋入結構分析 11
2-1.3 散佈式饋入技術之帶通濾波器設計 12
2-1.4 單頻帶通濾波器之電路實作與量測結果 16
2-2 使用此架構所設計之雙頻帶通濾波器 17
2-2.1 雙頻帶通濾波器架構 17
2-2.2 雙頻帶通濾波器之設計 18
2-2.3 雙頻帶通濾波器實作與量測結果 20
2-3 使用此架構所設計之三頻帶通濾波器 22
2-3.1 三頻帶通濾波器架構 22
2-3.2 三頻帶通濾波器之設計 23
2-3.3 三頻帶通濾波器實作與量測結果 27
2-4 結論 28
第三章可調式多頻帶通濾波器 29
3-1 可調式帶通濾波器設計理論 29
3-1.1 可調式帶通濾波器設計 29
3-1.2 可調式帶通濾波器實作與量測結果 37
3-2 雙頻可調式帶通濾波器 39
3-2.1 雙頻可調式帶通濾波器之架構 39
3-2.2雙頻可調式帶通濾波器實作與量測結果 42
3-3 三頻可調式帶通濾波器 45
3-3.1 三頻可調式帶通濾波器之架構 45
3-3.2 三頻可調式帶通濾波器實作與量測結果 48
3-4 結論 52
第四章結論 53
參考文獻 54

參考文獻

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指導教授

凃文化(Wen-Hua Tu)

審核日期

2018-3-23

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