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题名: Design of Compact Dual-Band Bandpass Filters Using λ/2 and Combined λ/4 Stepped-Impedance Resonators
作者: C.-H. Lee;Y.-H. Hsieh;Ho, Min-Hua
贡献者: 電子工程學系
关键词: Stepped-impedance resonator;Dual-band BPF;Cross-coupled configuration;0� tapped feed
日期: 2007-11
上传时间: 2012-05-22T06:26:35Z
出版者: Wiley
摘要: This paper presents a compact dual-band bandpass filter (BPF) that consists of a pair of L-shape half-wavelength (λ/2) stepped-impedance resonators (SIRs) and an inverted Z-shape resonator. The latter is actually a combined structure of two λ/4 SIRs along with a magnetic coupling in between and hence designed to reduce the circuit size. Cross-coupled SIR configuration and 0° tapped-feed structures are adopted to introduce attenuation poles around the passband edges for selectivity improvement. A wider −20-dB upper stopband is achieved by properly separating the third resonant frequencies of the SIRs of different types. The newly designed dual-band BPF was verified by circuit implementation, and a very good agreement between the simulated and measured results was observed.
關聯: Microwave and Optical Technology Lett., 49(11): 2703-2706
显示于类别:[電子工程學系] 期刊論文


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