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利用分枝線共振器設計多傳輸零點之微帶帶通濾波器 = Design Mic...

國立高雄大學電機工程學系碩士班

利用分枝線共振器設計多傳輸零點之微帶帶通濾波器 = Design Microstrip Bandpass Filters with Multiple Transmission Zeros Using Branch-Line Resonators

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Design Microstrip Bandpass Filters with Multiple Transmission Zeros Using Branch-Line Resonators
作者:	蔡仁澤,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	2012[民101]
面頁冊數:	76面圖，表 : 30公分;
標題:	帶通濾波器
標題:	Bandpass filter
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/06174551978425488415
附註:	參考書目：面73-76
摘要註:	擁有高選擇度和良好截止帶抑制的微波濾波器在無線通訊系統中扮演了一個重要的角色，而加入傳輸零點可以有效改善截止帶響應。本論文的目的是運用所提出的分枝線共振器分別設計傳輸零點和外部品質因素。此外，將設計完成的分枝線共振器代入交錯耦合式濾波器的結構還可以在操作頻率旁達到高選擇度。在所提出之分枝線共振器中，每一段開路傳輸線的長度近似所設計傳輸零點頻率的四分之一波長，將此共振器置於濾波器的輸入或輸出端可以產生所設計的傳輸零點。此外，所設計的開路傳輸線應被放在共振器上適當的位置，否則會降低預測傳輸零點的精準度。所以本研究是用所提出之分枝線共振器設計多傳輸零點之微帶帶通濾波器。 Microwave filter with better selectivity and good stopband rejection is an essential part in wireless communication system. Adding transmission zeros may be a good solution for this demand. The purpose of this dissertation is to design transmission zeros and external quality factor separately based on the proposed branch-line resonators, which can improve stopband response effectively. Besides, by using cross-coupled filter structure, the selectivity around the operating band can also be enhanced. In proposed branch-line resonator, the length of each open stub is equal to quarter wavelength at the frequency of the desired transmission zero. In this study, transmission zeros can be produced by placing the proposed branch-line resonator near input or output port. Moreover, the open stub should be arranged at a proper place of the resonator because it may impact the precision of expecting the transmission zero. Therefore, this research will discuss several microstrip bandpass filters with multiple expecting transmission zeros using the proposed branch-line resonators.

利用分枝線共振器設計多傳輸零點之微帶帶通濾波器 = Design Microstrip Bandpass Filters with Multiple Transmission Zeros Using Branch-Line Resonators
蔡, 仁澤

利用分枝線共振器設計多傳輸零點之微帶帶通濾波器 = Design Microstrip Bandpass Filters with Multiple Transmission Zeros Using Branch-Line Resonators / 蔡仁澤撰 - [高雄市] : 撰者, 2012[民101]. - 76面 ; 圖，表 ; 30公分.
參考書目：面73-76.
帶通濾波器Bandpass filter

利用分枝線共振器設計多傳輸零點之微帶帶通濾波器 = Design Microstrip Bandpass Filters with Multiple Transmission Zeros Using Branch-Line Resonators
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