Application of 2D Defected Ground Structures in Microstrip Lines

被引:0
|
作者
Shekhar, Chandra [1 ]
Bhadauria, Avanish [2 ]
Radhakrishna, M. [1 ]
机构
[1] Indian Inst Informat Technol, Microelect Div, Allahabad 211012, Uttar Pradesh, India
[2] Cent Elect Engn Res Inst, MEMS & Microsensors Grp, Pilani, Rajasthan, India
来源
2013 IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, COMPUTING AND COMMUNICATION TECHNOLOGIES | 2013年
关键词
Defected ground structure (DGS); Microstrip line and 2D periodic defected ground structure; FILTER;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, two-dimensional (2D) defected ground structures (DGSs) are proposed in microstrip lines. The dumbbell structure is added as a unit-cell in a systematic manner in both horizontal and vertical directions to construct the 2D DGSs. The proposed scheme efficiently utilizes the ground area to achieve very low stop band frequencies. The EM simulation with experimental validation has been carried out to study the transmission behavior of proposed structures. The variation of center frequency have been achieved from 10.4 GHz down to 4.4 GHz with more than 25 dB rejection in the stop band when the number of cells increases from 1 to 5 cells. We have also exhaustively studied the effect of DGSs in horizontal and vertical directions in microstrip lines. Further the proposed DGSs have been modeled as a parallel LC circuit connected in series to the main microstrip line. In order to validate model, the extracted circuit values with ADS circuit simulator has been used to compare the transmission behavior with EM simulation results obtained by IE3D. The comparison of experimental results show an excellent matching with EM simulation and equivalent circuit model.
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页数:4
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