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研究生:郭記涵
研究生(外文):Chi-Han Kuo
論文名稱:缺陷接地結構之精確參數萃取與改善微帶濾波器設計之應用
論文名稱(外文):Accurate Parameters Extraction of Defected Ground Structure and Its Applications for Designing Microstrip Filters
指導教授:吳俊德吳俊德引用關係
指導教授(外文):Chun-Te Wu
學位類別:碩士
校院名稱:大葉大學
系所名稱:電機工程學系
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:2010
畢業學年度:98
語文別:中文
論文頁數:49
中文關鍵詞:缺陷接地結構低通濾波器寄生效應
外文關鍵詞:defected ground structurelow pass filterparasitic effect
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本論文使用缺陷接地結構 (Defected ground structures)設計低通濾波器。先萃取出缺陷接地結構 (DGS)等效電路的元件值,再放入濾波器之設計。設計濾波器時,為了增加效益或是縮小電路的面積,會在接地面加入缺陷接地結構(DGS),但傳統的設計並未考慮到高頻時微帶線殘斷(Stub)上的寄生效應(Parasitic effect),而殘斷(Stub)上面的效應,會影響到我們設計的精確性。雖然就單獨的殘斷影響可以忽略,但以整體架構的參數特性,傳統的設計方式是不夠的,故提出修正的方法。
This paper presents an accurate design technique for a low-pass filter with defected ground structure(DGS).We extract the defected ground structure (DGS) equivalent circuit component values for designing filter.The DGS not only can significantly increase the characteristic impendance of microstrip line,but also improve stopband performance by rejecting the higher order passband.For increasing efficiency and reducing the area of circuits, we usually utilize the defected ground structure, but the conventional design did not consider the parasitic effect of stub at high frequency﹒The parasitic effect may result in significant frequency deviation.In order to improve the accuracy of the low pass filter design with DGS, an equation to find the parasitic inductance is suggested.This inductance is used to modify the frequency deviation of low pass filter.
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博碩士論文暨電子檔案上網授權書.....iii
中文摘要........................iv
ABSTRACT.......................v
誌謝...........................vi
目錄...........................vii
圖目錄.........................ix
表目錄.........................xi

第一章 緒論.....................1
1.1 研究動機與目的..............1
1.2文獻探討....................1
1.3 章節概述...................2
第二章 濾波器原理...............3
2.1 濾波器概論.................3
2.2 濾波器理論................5
2.2.1介入損耗函數法設計濾波器....5
2.2.2 極平坦響應函數............7
2.2.3 柴比雪夫響應函數...........9
2.3 濾波器設計..................10
2.3.1 設計步驟..................10
第三章 缺陷接地結構之參數萃取......17
3.1 缺陷型接地架構概述.......17
3.2 缺陷接地面結構(DGS)之分析....18
3.2.1 啞鈴型(DSS)缺陷接地之響應特性....18
3.2.2 啞鈴型缺陷接地結構之電路分析......19
3.3 啞鈴型缺陷接地結構參數的萃取........24
3.3.1 DSS結構之電感方程式.............24
3.3.2 挖槽之等效元件特性與尺寸參數萃取...25
第四章 濾波器應用與寄生效應之修正法......27
4.1 加入啞鈴型缺陷接地結構設計之低通濾波器...27
4.2 電路實現.............................30
4.2.1 短傳輸線近似等效電路.................30
4.2.2 加入DSS缺陷接地結構之電路實現.........35
4.3 電路之寄生效應探討與修正...............37
4.3.1 寄生電感值..........................37
4.3.2 鏡像原理...........................39
4.3.3 傳輸線寄生效應之修正.................40
第五章 結論...............................47
參考文獻.................................48
[1] D. Ahn, J. S. Park, C. S. Kim, J. Kim, Y. Qian, andT. Itoh, “A design of the Novel microstrip defected ground structure,” IEEE Trans. Microw. Theory Tech .,vol.49, no.1, pp. 86–93, Jan. 2001
[2] D. Woo and T. Lee, “ Suppression of harmonics in Wilkinson power divider using dual-band rejection by asymmetric DGS,” IEEE Trans.Micro. Theory Tech., vol.53, no. 6, pp.2139–2144, Jun. 2005.
[3] Jun-Seok Park, Jun-Sik Yun, and Dal Ahn, ” A Design of the Novel Coupled–Line Bandpass Filter Using Defected Ground Structure with wide Stopband Performance, ”IEEE Trans.Microwave Theory Thec, vol. 50,no.9, pp.2307– 2043.2002.
[4] R. Zhang and R. R. Mansour, Waterloo, Ontario,“A Novel Lowpass Microstrip Filter Using Metal-Loaded Slots in the Ground Plane,” IEEE MTT-D Digest Int. Dig, pp.417-420, 2002.
[5] Hai-Wen Liu, Zheng-Fan Li, Xiao-Wei Sun, and Jun-Fa Mao,” An Improver 1–D Periodic Defected GroundS tructure for Microstrip Line, ” IEEE Microwave and Wireless Components Letters, vol. 14, no. 4, April.2004.
[6] Wei-Tzong Liu, Chung-Hao Tsai, Tzu-Wei Han, and Tzong-Lin Wu, “An Embedded Common-Mode Suppression Filter for GHz Differential Signals Using Periodic Defected Ground Plane,” IEEE Microwave and Wireless Components Letters, vol. 18, no. 4, April 2008.
[7] Dong-Jin Jung and Kai Chang,“Low-Pass design through the accurate of Electromagnetic-Bandgap geometry on the ground plane” IEEE Tran. Microw. Theory Tech., vol.57, no.7, pp.1798– 1805. July. 2009.
[8] D.M. Pozar, Microwave and RF Wireless Systems, John Wiley, New York, 2001.
[9] Q. Xue, K. M. Shum, and C. H. Chan, “Novel 1-D microstrip PBG cell,” IEEE Microw. Guided Wave Lett., vol.10, no.10, pp. 403–405. Oct. 2000.
[10] C. S. Kim, J. S. Park, D. Ahn, and J.B. Lim, “A novel 1-D periodic defected ground structure for planar circuits,” IEEE Microw. Guided Waven Lwtt., vol.10 no.4, pp. 131–133, Apr. 2000.
[11] D.Ahn, J. S. Park, C. s. Kim, J. Kim, Y. Qian, and T. Itoh,“A design of the low-paa filter using the novel microstrip defected ground structure,” IEEE Tran. Microw. Theory Tech., vol.49, no.1,pp.86–93, Jan. 2001.
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