106學年度：低通濾波修改式威爾京生功率分配器之設計
計畫名稱：低通濾波修改式威爾京生功率分配器之設計
執行起迄：2017/08/01~2018/07/31
總核定金額：675,000元
中文摘要：最近幾年來，許多帶通濾波功率分配器已經被提出來改善傳統威爾京生功率分配器中不良的選擇度，但傳輸損耗在帶通濾波功率分配器中通常是不小的，若所需應用僅需在較高頻截止帶有良好的抑制響應，則低通濾波功率分配器可以被選擇，一般而言，在通帶中，低通濾波器具有低的傳輸損耗，因此，低通濾波功率分配器也許可以大幅改進帶通濾波功率分配器之傳輸損耗在操作頻帶附近的問題，然而，如何設計低通響應之低通濾波功率分配器之研究是少的，本計畫提出利用具有簡單且清楚設計步驟之任意偶數階柴比雪夫低通濾波轉換器來設計多種新的低通濾波功率分配器，這些設計在過去文獻中是未被提出的。
英文摘要：In recent years, several bandpass filtering power dividers have been proposed for improving the poor selectivity of conventional Wilkinson power divider. However, the transmission loss is usually not small in the bandpass filtering power dividers. If applications only need to have favorable higher frequency stopband rejection, lowpass filtering divider can be selected. In general, lowpass filter has low transmission loss in the passband. Therefore, lowpass filtering power divider may significantly improve the loss issue of bandpass filtering power divider around the operating band. However, how to design a lowpass response in the lowpass filtering power divider is few. This program proposes several new lowpass filtering dividers using arbitrary even order Chebysheve lowpass fitering transformers with simple and clear design procedures, which have not been proposed in the previous literatures.
執行起迄：2017/08/01~2018/07/31
總核定金額：675,000元
中文摘要：最近幾年來，許多帶通濾波功率分配器已經被提出來改善傳統威爾京生功率分配器中不良的選擇度，但傳輸損耗在帶通濾波功率分配器中通常是不小的，若所需應用僅需在較高頻截止帶有良好的抑制響應，則低通濾波功率分配器可以被選擇，一般而言，在通帶中，低通濾波器具有低的傳輸損耗，因此，低通濾波功率分配器也許可以大幅改進帶通濾波功率分配器之傳輸損耗在操作頻帶附近的問題，然而，如何設計低通響應之低通濾波功率分配器之研究是少的，本計畫提出利用具有簡單且清楚設計步驟之任意偶數階柴比雪夫低通濾波轉換器來設計多種新的低通濾波功率分配器，這些設計在過去文獻中是未被提出的。
英文摘要：In recent years, several bandpass filtering power dividers have been proposed for improving the poor selectivity of conventional Wilkinson power divider. However, the transmission loss is usually not small in the bandpass filtering power dividers. If applications only need to have favorable higher frequency stopband rejection, lowpass filtering divider can be selected. In general, lowpass filter has low transmission loss in the passband. Therefore, lowpass filtering power divider may significantly improve the loss issue of bandpass filtering power divider around the operating band. However, how to design a lowpass response in the lowpass filtering power divider is few. This program proposes several new lowpass filtering dividers using arbitrary even order Chebysheve lowpass fitering transformers with simple and clear design procedures, which have not been proposed in the previous literatures.
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