臺灣博碩士論文加值系統

本論文提出了三種使用雙傳輸線共振器的帶通濾波器。第一型電路使用三個二分之一波長雙傳輸線步階阻抗共振器來設計三階耦合共振濾波器，使得電路尺寸縮短以利整合電路空間。第二型濾波器使用四分之一波長雙傳輸線步階阻抗共振器來設計，為了減少電路尺寸，使得電路尺寸會比第一型電路減少一半但是電路需要穿孔打洞。第三型濾波器使用四個二分之一波長雙傳輸線步階阻抗共振器來設計交叉耦合濾波器，會使得通帶旁邊產生一對傳輸零點，為了提高頻帶選擇性。

In this thesis, three bandpass filters using dual-transmission line resonators are presented. The first circuit uses three half-wavelength double transmission line step impedance resonators to design the third-order coupled resonant filter, which shortens the circuit size to facilitate the integration of circuit space. The second filter is designed with a quarter wavelength double transmission line step impedance resonator. In order to reduce the circuit size, the circuit size will be reduced by half compared with the first circuit, but the circuit needs via holes. The third filter uses four half-wavelength double transmission line step-impedance resonators to design cross-coupled filters, which will produce a pair of transmission zeros beside the passband to improve the band selectivity.

文字目錄
頁次
口試委員會審定書i
致謝 ii
中文摘要 iii
英文摘要 iv
文字目錄 v
圖形目錄 vii
表格目錄 ix
第一章 緒論
1.1 研究動機與目標 01
1.2 文獻回顧 01
1.3 章節概要 02
第二章 濾波器與共振器介紹以及傳輸線公式探討
2.1 濾波器頻率響應與種類 03
2.2 共振器原理 03
2.3 步階阻抗式共振器 04
2.4 二分之一波長開路共振器構成之交叉耦合式濾波器 04
2.5 單傳輸線轉雙傳輸線公式探討 05
第三章 第一型濾波器設計
3.1 簡介 09
3.2 設計規格 09
3.3 layout模擬過程 10
3.4 共振器尺寸比較 13
3.5 layout微調心得 13
3.6 結果與討論 14
第四章 第二型濾波器設計
4.1 簡介 16
4.2 設計規格 16
4.3 layout模擬過程 17
4.4 共振器尺寸比較 20
4.5 layout微調心得 21
4.6 結果與討論 21
第五章 第三型濾波器設計
5.1 簡介 24
5.2 設計規格 24
5.3 layout模擬過程 25
5.4 layout微調心得 28
5.5 結果與討論 29
第六章 結論 31
參考文獻 32

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