中文

Journal of Shanghai University（Natural Science Edition） ›› 2006, Vol. 12 ›› Issue (2): 129-132 .

• Articles • Previous Articles     Next Articles

A Novel Defected Ground Structure and Its Application to Lowpass Filter

ZHONG Xiao-ming,LI Guo-hui   

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

  • Received:2005-05-10 Revised:1900-01-01 Online:1900-01-01 Published:1900-01-01
  • Contact: LI Guo-hui

Cited

29

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 stopband with 20 dB bandgap, which is approximately 3.7 times of the cutoff frequency. Therefore the higher order harmonic responses are effectively suppressed. In addition, the highimpedance inductances are realized by using DGS so that highpower handling capability is improved.

Key words: defect parameters, lowpass filter, selectivity

, sharpness factor,

defected ground structure