National Changhua University of Education Institutional Repository : Item 987654321/10317
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题名: A Parallel Doubly Coupled Dual-Band Bandpass Filter
作者: Rao, Zhen-Mao;Wong, Tzu-Jung;Ho, Min-Hua
贡献者: 電子工程學系
关键词: Bandpass filters;Coupled transmission lines;Microstrip filters;Zero assignment
日期: 2006-06
上传时间: 2012-05-22T06:28:18Z
出版者: Institute of Electrical and Electronics Engineers Inc.
摘要: A parallel doubly coupled stepped impedance resonators (SIRs) structure is proposed in this paper to build a 2.4/5.2 GHz dual-band bandpass filter for a WLAN application. The prototype filter is a three-stage design composed by four SIRs in conjunction with the tapped-line used in the I/O ports to create zeros by the passband skirts. The proposed filter has the advantages of a much wider fractional bandwidth in both the
passbands without sacrificing the passband's insertion losses. The conventional parallel-coupled microstrip line model is applicable
in the proposed filter design. The filter has obtained almost twice wider bandwidth compared to that possessed by the counterpart filter of a conventional parallel-coupled line configuration. It is convinced that this filter design can be apply to the 2.4/5-GHz dual-band operation that needs a wider second passband. The experiment is conducted for filter performance validation. A very good agreement is observed between the simulation and the measurements.
關聯: 2006 IEEE MTT-S International Microwave Symposium Digest, San Francisco, CA, June 11-16, 2006: 511-514
显示于类别:[電子工程學系] 會議論文

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