National Changhua University of Education Institutional Repository : Item 987654321/10692
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题名: Design of a novel quad-band microstrip BPF using quarter-wavelength stepped-impedance resonators
作者: Hsu, Chung-I G.;Lee, Ching-Her;Jhuang, He-Kai
贡献者: 電子工程學系
日期: 2007-02
上传时间: 2012-05-29T01:21:43Z
出版者: Horizon House
摘要: In this article, a new quad-band microstrip bandpass filter (BPF) is proposed. The BPF is composed of resonators whose first four resonant frequencies can be tuned to the desired passbands. Each resonator is formed by combining two unequal-size stepped-impedance resonators (SIR) with part of their structures shared. The designed quad-band BPF is implemented on an RT/Duroid 6010 substrate. The measured fractional bandwidths (minimum insertion losses) for the 1.57 GHz (GPS), 2.45 GHz (ISM), 3.55 GHz (WiMAX) and 5.25 GHz (WLAN) bands are 6.4 percent (1.85 dB), 8.2 percent (1.4 dB), 8.7 percent (2 dB) and 12.2 percent (1.06 dB), respectively, which agree well with the simulated results. For miniaturization purposes, the resonators are meandered to give an overall circuit size of only 12.3 � 9.1 mm.
關聯: Microwave Journal, 50(2): 102-112
显示于类别:[電子工程學系] 期刊論文

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