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

作     者：钟小明 李国辉 ZHONG Xiao-ming;LI Guo-hui

作者机构：School of Communication and Information Engineering Shanghai University Shanghai 200072 P. R. China 

出 版 物：《Journal of Shanghai University(English Edition)》 (上海大学学报（英文版）)

年 卷 期：2007年第11卷第4期

页      面：396-399页

学科分类：0810[工学-信息与通信工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Project supported by the Shanghai Leading Academic Discipline Project (Grant No.T0102) 

主　　题：defected ground structure （DGS） low-pass filter bandgap sharpness factor selectivity 

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.