A wide stopband microstrip bandpass filter using defected ground structure
Defected ground structure (DGS) has the characteristics of slow wave,wide stopband and compact size.A coupled-line bandpass microstrip filter with the central frequency of 12 GHz is designed by using computer-aided design(CAD) tools,and then,the DGS shape is proposed to optimize the stopband and to restrain the spurious passband. Thus,the stopband of the filter is wider than that of conventional coupledline filter. The experimental results on a fabricated parallel coupled-line filter using DGS agree with the simulation results very well.
Yong Zhang
School of Electronic Engineering University of Electronics Science and Technology of China Chengdu,610054,China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
369-371
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）