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http://ir.ncue.edu.tw/ir/handle/987654321/10713
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| 題名: | A compact CPW-fed UWB BPF using combined microstrip SIR |
| 作者: | Chen, Yu-Cheng;Lee, Ching-Her;Hsu, Chung-I G. |
| 貢獻者: | 電子工程學系 |
| 關鍵詞: | Multimode resonator;Ultra-wideband bandpass filter;Coplanar waveguide;Stepped-impedance resonator |
| 日期: | 2009-04
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| 上傳時間: | 2012-05-29T01:23:29Z
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| 出版者: | Wiley Periodicals |
| 摘要: | This article presents a multimode-resonator (MMR)-based ultra-wideband (UWB) bandpass filter (BPF) fed by modified coplanar waveguides (CPWs). The MMR employed in the UWB BPF is formed by combining two quarter-wavelength (λ/4) microstrip stepped-impedance resonators (SIRs) in a structure-shared fashion. The first two resonant frequencies of the inherent λ/4 SIRs and the fundamental one of the embedded half-wavelength (λ/2) resonator were designed and located inside the UWB passband. Experiments on a prototype UWB BPF were carried out for validating the filter design. The measured frequency responses show an insertion loss of less than 1 dB between the first and the last |S11| null frequencies in the UWB passband and an upper −20-dB stopband bandwidth of about 6.14 GHz. |
| 關聯: | Microwave and Optical Technology Lett., 51(4): 918-921 |
| 顯示於類別: | [電子工程學系] 期刊論文
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