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题名: Design of a new bandpass filter using anti-Parallel coupled asymmetric SIRs
作者: Lee, Ching-Her;Hsu, Chung-I G.;Jhuang, He-Kai
贡献者: 電子工程學系
关键词: Bandpass filter;Stepped-impedance resonator;Transmission zero
日期: 2006-04
上传时间: 2012-05-29T01:21:16Z
出版者: Maruzen Co., Ltd/Maruzen Kabushikikaisha
摘要: In this paper a newly designed internally-coupled asymmetric stepped-impedance resonator (SIR) bandpass filter (BPF) is proposed. The asymmetric SIR structure not only can effectively reduce the circuit size but also can provide two flexibly tunable transmission zeros near the lower and upper passband edges. The first transmission zero is due to the series resonance of the quarter-wavelength open stepped-impedance stub, and the second one is produced by anti-parallel coupling between adjacent SIRs. The proposed BPF was fabricated and simulated using the commercial software HFSS, and agreement between the measured and simulated results was observed. A 0.9-dB insertion loss and a shape factor of 3.6 were achieved in the passband, thus indicating that the proposed filter structure is of practical value.
關聯: IEICE Transactions on Electronics, E89-C(4): 571-575
显示于类别:[電子工程學系] 期刊論文


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