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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/372


    Title: 寬頻具濾波效果之功率分配器與寬頻帶通濾波器之設計;Design of A Microstrip Filtering Power Divider With A Wide Passband and Broad Stopband and Wideband Bandpass Filter
    Authors: 陳明宗;CHEN, MING-TZUNG
    Contributors: 電機工程研究所
    Keywords: 寬頻功率分配器;諧波抑制;步階阻抗;帶通濾波器;寬頻;Broadband;power divider;Harmonic suppression;Stepped impedance;bandpass filter
    Date: 2017
    Issue Date: 2019-07-17
    Publisher: 電機工程研究所
    Abstract:   本論文分成兩個部分,第一部分介紹寬頻及寬截止頻之功率分配器,在此所提及之功率分配器首先是由兩段四分之一波長之耦合線以及一開路殘段形成一多模態諧振腔做為出發,以此架構可得到寬頻的效果,之後為了再加以匹配,在輸入埠加入L-type傳輸線加以匹配至最佳狀態,最後再加入電阻,改善兩輸出埠之間的隔離度,最後為了要達到寬諧波抑制,將前段之四分之一波長的耦合線,用三段等長之步階式耦合線來取代,以達到諧波抑制之功效。  而在第二部分介紹寬頻帶通濾波器,利用四個類環型諧振腔來達到寬頻的特性,而藉由適當的選取每個諧振腔之電氣長度,可將諧波往後推移,利用耦合係數法來進行設計,可計算出類環型諧振腔之耦合間距。
      The thesis includes two parts, the first part will introduce the microstrip filtering power divider with a wide passband and broad stopband. In this part, I use quarter-wavelength coupled line and a open-stub to be a muti-mode resonator. This structure can be a broad band performance. In input port, I use L-type transmission line(TL) to match this circuit and add resistor to improve isolation of two output port. Finally, we want to achieve harmonic suppression. I use three equal length stepped couple line to replace quarter-wavelength coupled line at input port.  In the second part, I will introduce the wideband bandpass filter at chapter 4. By using four pseudo-hairpin-line resonator to achieve broadband performance and using coupling coefficient method to get coupling gap of each resonators.
    Appears in Collections:[電機工程研究所] 學位論文

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