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Design of low-pass filter based on a novel defected ground structure

Design of low-pass filter based on a novel defected ground structure
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摘要 A novel defected ground structure （DGS） for the microstrip line is proposed in this paper. The DGS lattice has more defect parameters so that it can provide better performance than the conventional dumbbell-shaped DGS. Selectivity is improved by 97.2% with a sharpness factor of 24.6%. The method is applied to the design of a low-pass filter to confirm validity of the proposed DGS. A novel defected ground structure （DGS） for the microstrip line is proposed in this paper. The DGS lattice has more defect parameters so that it can provide better performance than the conventional dumbbell-shaped DGS. Selectivity is improved by 97.2% with a sharpness factor of 24.6%. The method is applied to the design of a low-pass filter to confirm validity of the proposed DGS.
作者 钟小明 李国辉
机构地区 School of Communication and Information Engineering
出处 《Journal of Shanghai University(English Edition)》 CAS 2007年第4期396-399,共4页 上海大学学报（英文版）
基金 Project supported by the Shanghai Leading Academic Discipline Project (Grant No.T0102)
关键词 defected ground structure （DGS） low-pass filter bandgap sharpness factor SELECTIVITY defected ground structure （DGS）, low-pass filter, bandgap, sharpness factor, selectivity
分类号 TN02 [电子电信—物理电子学]
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参考文献7

  • 1KARMAKER N C.Improved performance of photonic bandgap microstrip line structures with the use of Chebyshev distributions[].Microwave and Optical Technology Letters.2002
  • 2AHN D,PARK J S,KIM C S,KIM J,QIAN Y,ITOH T.A design of the low-pass filter using the novel microstrip defected ground structure[].IEEE Transactions on Microwave Theory and Techniques.2001
  • 3RAHMAN A A,VERMA A K,BOUTEJDAR A,OMAR A S.Control of bandstop response of Hi-Lo microstrip lowpass filter using slot in ground plane[].IEEE Transactions on Microwave Theory and Techniques.2004
  • 4LIM J S,PARK J S,LEE Y T,AHN D,NAM S.Appli- cation of defected ground structures in reducing the size of amplifiers[].IEEE Microwave and Wireless Com- ponents Letters.2002
  • 5PARK J S,YUN J S,AHN D.A design of the novel coupled-line band-pass filter using defected ground structure with wide stopband performance[].IEEE Transactions on Microwave Theory and Techniques.2000
  • 6YOON J S,,KIM J G,PARK J S,LIM J B,CHO H G,KANG K Y.A new DGS resonator and its applica- tion to bandpass filter design[].IEEE MTT-S Inter- national Microwave Symposium Digest.2004
  • 7Jun-Seok Park,,Myeong_Sub Jung.A novel defected ground structure for an active device mounting and its application to a microwave oscillator[].IEEE Microwave and wireless components letters.2004
Journal of Shanghai University(English Edition)
2007年 第4期

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