Compact Design Of a Sharp-Rejection Low-Pass Filter Using a Novel Defected Ground Structure

摘要：

In this article,we propose a microstrip low-passfilter (LPF) comprising of open-circuited stubs on the uppersurface and a novel defected ground structure (DGS) on thelower ground plane,and discuss the impacts of some of theDGS parameters on the frequency characteristics.Based onthis structure,a compact S-band LPF with sharp-rejection isdesigned and simulated effectively.A center frequency f0of 2.65GHz is obtained by adjusting the dimensions of theDGS cell,and the simulated 3dB cutoff frequency fc is2.53GHz with a sharpness factor (SF) of 0.955.

关键词： Defected ground structure (DGS) low-passfilter (LPF) sharp-rejection

作者: Wang Huina Li Guohui Yan Jun

作者单位: School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China

会议类型: 国际会议

会议名称: 2008 China-Japan Joint Microwave Conference(2008年中日微波会议)

会议地点: 上海

会议语种:英文

页码: 388-390

在线出版日期: 2008-09-10（万方平台首次上网日期，不代表论文的发表时间）