A novel low‐pass filter using defected ground structures
暂无分享，去创建一个
In this paper, an equivalent-circuit model of a defected ground structure (DGS) is applied to explain the characteristics of the DGS. The parameters of the circuit model are extracted from the EM-simulation results. A novel three-pole lowpass filter is proposed and optimized by using the defected ground structures. It is demonstrated that the filter can provide a sharp rate of attenuation in the stop-band, as predicted. To further verify this method, the filter with DGS is fabricated on a 30 × 30 mm2 substrate. A comparison between the simulation and the measurement confirms the effectiveness of the proposed schemes. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 17–20, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20888
[1] Y. Qian,et al. A design of the low-pass filter using the novel microstrip defected ground structure , 2001 .
[2] Jong-Sik Lim,et al. Design of lowpass filters using defected ground structure and compensated microstrip line , 2002 .
[3] Dal Ahn,et al. A design of the novel coupled-line bandpass filter using defected ground structure with wide stopband performance , 2002 .
[4] Jae-Bong Lim,et al. A novel 1-D periodic defected ground structure for planar circuits , 2000 .