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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/33801
標題: | 基板合成波導帶通濾波器 Substrate-Integrated-Waveguide Bandpass Filters |
作者: | Fu-Kai Tsai 蔡富凱 |
指導教授: | 陳俊雄 |
關鍵字: | 濾波器, filter, |
出版年 : | 2006 |
學位: | 碩士 |
摘要: | 在本論文中,一共製作了五種基板合成波導濾波器,使用FR4與RO4003板子實現。而其中包含了兩階、三階、四階柴比雪夫響應 ,利用兩層版實現電感以及電容性耦合來達成四階橢圓函數響應,使之具有一對傳輸零點,以期有較好的頻率選擇度。最後利用步階性阻抗共振腔,製作基板合成波導濾波器,使用兩層RO4003板子完成,由於步階性阻抗有慢波的效果,所以能達成尺寸縮小、截止帶效果變好等優點。 In this study, designed and examined measured four kinds of substrate-integrated-waveguide (SIW) filters. The implemented filters contain two-order, three-order, and four-order ones which possess the Chebyshev’s response. These filters structures are fabricated on the two-layer PCB board. Specifically, suitable inductive and capacitive couplings are introduced such that one-pair of ransmission zeros may be created to realize a 4th-order filter with elliptic response to improve the filter selectivity. Finally, used step-impedance resonator for filter design , and implement by two-layer substrate RO4003. Because of the slow-wave effect of step-impedance resonator, the size of filter is small and stopband response is better. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/33801 |
全文授權: | 有償授權 |
顯示於系所單位: | 電信工程學研究所 |
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