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研究生:林翰志
研究生(外文):LIN, HAN-CHIH
論文名稱:具寬截止頻帶之高諧波抑制低通濾波器及超寬頻與寬截止頻帶帶通濾波器
論文名稱(外文):Design of the high attenuation low pass filter with wide stopband and ultra-wide bandpass filter with broad stopband
指導教授:湯敬文
指導教授(外文):TANG, CHING-WEN
口試委員:張志揚王健仁李建育湯敬文
口試委員(外文):CHANG, CHI-YANGWANG, CHIEN-JENLI, JIAN-YUTANG, CHING-WEN
口試日期:2017-06-26
學位類別:碩士
校院名稱:國立中正大學
系所名稱:電機工程研究所
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:2017
畢業學年度:105
語文別:中文
論文頁數:74
中文關鍵詞:低通濾波器槽線超寬頻帶通濾波器雙路徑耦合線寬截止頻帶
外文關鍵詞:Low-pass filterslotultra-wide bandpass filtertwo-path coupled linebroad stopband
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本論文分為兩個部分,第一部分為第三章,主要是介紹具寬截止頻帶之高諧波抑制低通濾波器,利用巴特沃茲濾波器設計公式得到低通濾波器雛形,選擇階數為 6 來達到高選擇性;而在頻帶外,在電路佈局上使用挖槽來達到頻帶外高諧波抑制的部分。另外,電磁模擬也和量測有很好的一致性。第四章則是超寬頻與寬截止頻帶帶通濾波器,首先使用兩段平行耦合線來達到濾波效果,再來加入一多模態諧振腔來使頻帶達到超寬頻;在頻帶外抑制的部分,吾人選擇使用雙路徑耦合線的結構來達到頻帶外抑制,進而實現寬截止頻帶。電路在模擬與量測皆有良好結果。

There are two part of this thesis had been presented. The first part is the design of the high attenuation low pass filter with wide stopband at chapter 3. In order to achieve high selectivity, choosing the six-order low pass filter prototype by using butterworth method. To achieve stopband rejection, using slot line is effective to generate extra transmission zeros. In the second part, we will introduce the ultra-wide bandpass filter with broad stopband at chapter 4. First, by using parallel-coupled line to achieve filtering and adding a muti-mode resonator to achieve ultra-wideband. To suppress the harmonic, choosing the two-path coupled line to achieve broad stopband.

目錄
摘要 I
Abstract III
目錄 V
圖目錄 VII
表目錄 X
第一章 緒論 1
1-1 研究動機 1
1-2 文獻探討 2
1-3 論文架構 2
第二章 傳輸線和耦合線理論分析 3
2-1 簡介 3
2-2 傳統濾波器設計理論 3
2-3 集總式元件與分布式元件轉換式 8
2-4 傳輸參數矩陣ABCD 10
2-5 奇偶模分析法 14
2-6 步階阻抗諧振腔之分析 23
第三章 具寬截止頻帶之高諧波抑制低通濾波器 29
3-1 簡介 29
3-2 巴特沃茲低通濾波器雛形 29
3-3 集總式元件模型轉換傳輸線等效電路 31
3-4 分析挖槽產生傳輸零點機制 36
3-5 S參數計算 41
3-6設計實例與量測 44
第四章 超寬頻與寬截止頻帶帶通濾波器 48
4-1 簡介 48
4-2 濾波器分析 48
4-3 改善頻帶外抑制 60
4-4 設計實例 66
第五章 結論 69
參考文獻 71

參考文獻
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