Journal of Shanghai University（Natural Science Edition）
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ZHONG Xiao-ming,LI Guo-hui
School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
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Abstract:
A novel defected ground structure (DGS) is proposed and the effect of the defect parameters on its performances is presented. A lowpass filter is designed using the proposed DGS. Experimental results confirm that the lowpass filter can provide a very wide stopband with 20 dB bandgap, which is approximately 3.7 times of the cutoff frequency. Therefore the higher order harmonic responses are effectively suppressed. In addition, the highimpedance inductances are realized by using DGS so that highpower handling capability is improved.
Key words: defect parameters, lowpass filter, selectivity
defected ground structure
ZHONG Xiao-ming;LI Guo-hui. A Novel Defected Ground Structure and Its Application to Lowpass Filter[J]. Journal of Shanghai University（Natural Science Edition）.
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https://www.journal.shu.edu.cn/EN/Y2006/V12/I2/129
