A Novel Open-loop DGS for Compact Bandstop Filter With Improved Q Factor
A novel slot-shaped defected ground structure (DGS) on the microstrip line to provide a band-rejection property with an improved Q factor is proposed in this paper.It has a size of only 11％ of conventional dumbbell DGS unit section and 26.8％ of U sharp DGS unit section,while the Q factor is 7.6 times than dumbbell DGS and 3.2 times than U-sharp DGS at the same resonant frequency of 4.88GHz.A minimized two-pole bandstop filter based on the newly proposed DGS is designed and simulated.It has a 3dB cutoff frequency of 3.38GHz with 37dB rejection in the stopband from 3.63 to 3.75GHz,the size of the filter is less than 0.35λg ×0.16λ g
Maohui Yang Jun Xu Yuliang Dong Mengxia Yu Guiping Lee
Institute of Applied Physics,University of Electronic Science and Technology of ChinaChengdu,610054, Institute of Applied Physics,University of Electronic Science and Technology of China Chengdu,610054
国际会议
昆明
英文
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）