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一种新型双环双模带通滤波器 被引量：4

A Novel Double Loop Dual-Mode Bandpass Filter
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摘要 本文提出了一种由一个环形谐振器和一个微扰小环构成的新型双环双模带通滤波器.微扰小环具有两个可调参数,增加了调整双模的自由度,从而更容易地调节双模,便于实现滤波器的小型化.抽头输入输出耦合结构可以方便地调整双模滤波器的两个传输零点,从而改善滤波器的通带特性.最后实现了中心频率为2.41GHz,相对带宽为17.77%的双环双模带通滤波器,通带内插入损耗为0.67dB,回波损耗为17dB,且带外衰减大于20dB. A novel double loop dual-mode bandpass filter is proposed which is composed of a quadrate resonator and a small quadrate loop for the purpose of perturbation.The small quadrate loop has two tunable parameters which increase the degree of freedom of dual modes and make the miniaturization easier.Tapped coupling can be used to change the transmission zeros so that the performance of filter is improved.A prototype filter is designed and fabricated with a measured center frequency of 2.41GHz,17.77% fractional bandwidth,a low passband insertion loss of 0.67dB,a high passband return loss of 17dB and a wide stop band with rejection better than 20dB.
作者 褚瑞 周亮 毛军发
机构地区 上海交通大学微波与射频技术研究中心
出处 《电子学报》 EI CAS CSCD 北大核心 2010年第3期668-671,共4页 Acta Electronica Sinica
基金 国家重点基础研究发展规划(973计划)项目(No.2009CB320202) 国家自然科学基金委创新群体项目(No.60821062)
关键词 带通滤波器 双模 双环 bandpass filter dual mode double loop
分类号 TN713 [电子电信—电路与系统]
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参考文献10

  • 1Wolff. Microstrip bandpass filter using degenerate modes of a microstrip ring resonator[ J ]. Electronic Letters, 1972, 8 ( 12):302 - 303.
  • 2J S Hong,M J Lancaster.Microstrip Filters for RF/Microwave Applications[ M ]. New York: Wiley, 2001.
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同被引文献19

  • 1牟亚妮,马哲旺.一种新型交指-发夹型多层带状线带通滤波器[J].电子学报,2006,34(12):2238-2241. 被引量：4
  • 2波扎. 微波工程[M]. 张肇仪, 周乐柱, 吴德明 等 译. 北京:电子工业出版社, 2010. 80～85.
  • 3WANG J P, LI J L, NI J, et al. Design of miniaturized microstrip dual-mode filter with source-load coupling [J]. IEEE Microwave Wireless Compon Lett, 2010, 20(6): 319-321.
  • 4CHOI B C, LEE W S, K1M H C, et al. A dual-band bandpass filter using a dual-mode ring resonator with two short-circuited stubs [J]. IEEE Microwave Mag, 2010(1): 152-155.
  • 5HSIEH L H, CHANG K. Compact, low insertion loss, sharp rejection wideband bandpass filters using dual.mode ring resonators with tuning stubs [J]. Electron Lett, 2001, 37(22): 1345-1346.
  • 6HONG J S, HUSSEIN S, CHUN Y H. Dual-mode mierostrip open-loop resonators and filters [J]. IEEE Trans Microwave Theory Teeh, 2007, 55(8): 1764-1770.
  • 7ZHANG X Y, XUE Q. Novel centrally loaded resonators and their applications to bandpass filters [J]. IEEE Trns Microwave Theory Tech, 2008, 56(4): 913-920.
  • 8CHU Q X, WU X H, TIAN X K. Novel UWB bandpass filter using stub-loaded multiple-mode resonator [J]. Microwave Wireless Compon Lett, 2011, 21(8): 403-405.
  • 9Wolff. Microstrip bandpass filter using degenerate modes of a microstrip ring resonator[J].Electronics Letters,1972,(12):302-303.
  • 10J S Hong,M J Lancaster. Microstrip Filters for RF/ Microwave Applications[M].New York:wiley,2001.

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电子学报
2010年 第3期

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