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采用折叠型阶跃阻抗谐振器的新颖双频带带通滤波器 被引量：2

Compact Dual-Band Bandpass Filter Using Folded Stepped Impedance Resonator
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摘要 设计一种新颖的双频带带通滤波器(bandpass filter,BPF),可应用于无线局域网(wireless local area network,WLAN)IEEE 802.11 b/a(2.4/5.2 GHz).该滤波器是由折叠的阶跃阻抗谐振器(stepped impedance resonator,SIR)外加2个枝节构成,并具有一个传输零点.该滤波器的2个通带分别由折叠型SIR的基频和一次杂散频率产生.为了满足输入和输出阻抗匹配的要求,改善双频段的通带性能,采用零度馈电方式.仿真结果显示,2个频带在2.4/5.2 GHz时的3 dB相对带宽分别为6.3%和3.4%.测量结果和仿真结果基本吻合. A novel compact dual-band bandpass filter （BPF） is designed for applications of wireless local area network （WLAN） IEEE 802. 11 b/a （2.4/5.2 GHz）. The filter is composed of folded stepped impedance resonators （SIRs） and two stubs with one transmission zero. The two passbands are centered at the basic resonant frequency and the first-order spurious frequency. To match the input and output impedances and improve performance of the two passbands, a tapline is used to feed the coupling resonator at zero degree. Simulation results show that the two center frequencies are located at the desired 2.4 and 5.2 GHz with 3 dB fractional bandwidths of 6.3% and 3.4%, respectively. The measured results are in general agreement with the simulation results.
作者 马德臣 肖中银 相亮亮 黄春艳 寇鑫 吴效环
机构地区 上海大学通信与信息工程学院
出处 《上海大学学报（自然科学版）》 CAS CSCD 北大核心 2012年第4期331-334,共4页 Journal of Shanghai University:Natural Science Edition
基金 国家自然科学基金资助项目(61077068) 上海市自然科学基金资助项目(10ZR1411900) 上海市重点学科建设资助项目(S30108) 上海市科委重点实验室资助项目(08DZ2231100)
关键词 双频带 带通滤波器 阶跃阻抗谐振器 dual-band bandpass filter （BPF） stepped impedance resonator （SIR）
分类号 TN713 [电子电信—电路与系统]
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参考文献9

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同被引文献22

  • 1甘本祓.吴万春.现代微波滤波器的结构与设计[M].北京:科学技术出版社.1993:40-52.
  • 2Chen F C,Chu Q X,Tu Z H. Design of compact dual- andtri-band bandpass filters using A/4 and A/2 resonators[J] . Microwave and Optical Technology Letters,2009,51(3) :628-631.
  • 3Zhang X Y,Xue Q,Hu B J. Planar tri-band bandpass fil-ter with compact size [ J] . IEEE Microwave and WirelessComponents Letters,2010,20(5 ) ;262-264.
  • 4Feng W J,Doan M T,Che W Q. Compact tri-band band-pass filter based on short stubs and crossed open stubs[C] // Proceedings of 2010 International Conference onAdvanced Technologies for Communication. Ho Chi MinhCity;IEEE,2010:213-216.
  • 5Chu Q X, Chen F C,Tu Z H. A novel crossed resonatorand its applications to badpass filters [ J]. IEEE Transac-tions on Microwave Theory and Techniques, 2009,57(7):1753-1759.
  • 6Chen W Y,Su Y H,Kuan H,et al. Simple method to de-sign a tri-band bandpass filter using asymmetric SIRs forGSM,WIMAX,and WLAN applications [ J]. Microwaveand Optical Technology Letters,2011,53(7) : 1573-1576.
  • 7Lee Ching-Her,Hsu Chung-I G,Chen Yu-Cheng. Compacttri-band BPF design using spur-line-loaded tri-sectionSIRS [ J]. Microwave and Optical Technology Letters,2009,51(4) :989-991.
  • 8Ren L Y. Tri-band bandpass filters based on dual-planemicrostrip/DGS slot structure [ J]. IEEE Microwave andWireless Components Letters ,2010,20(8 ) :429-431.
  • 9Feng W J,Che W Q,Eibert T F,et al. Compact differen-tial ultra-wideband bandpass filter based on the double-sided parallel-strip line and transversal signal-interactionconcepts [ J ]. IET Microwaves Antennas and Propaga-tion,2012,6(2) :186-195.
  • 10Chen J X,Zhang X Y,Xue Q. Dual-band bandpass filterand diplexer based on double-sided parallel-strip line[C] // Proceedings of 2008 IEEE MTT-S InternationalMicrowave Symposium Digest. Atlanta: IEEE,2008 :675-678.

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上海大学学报（自然科学版）
2012年 第4期

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