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J Electromagn Eng Sci > Volume 14(4); 2014 > Article
Journal of Electromagnetic Engineering and Science 2014;14(4):346-348.
DOI: https://doi.org/10.5515/JKIEES.2014.14.4.346   
Optimization of a Defected Ground Structure to Improve Electromagnetic Bandgap Performance
Manseok Kwon1, Myunghoi Kim2, Dong Gun Kam1
1Department of Electronics Engineering, Ajou University
2Electronics and Telecommunications Research Institute (ETRI)
Abstract
A dispersion analysis is performed to estimate the stopband characteristics of electromagnetic bandgap (EBG) structures with defected ground structures (DGS) of various shapes. Design guidelines are suggested for both elliptical and rectangular DGS patterns that result in a maximum stopband bandwidth for a given perforation area. This method provides a basis for numerical optimization techniques that can be used in synthesizing DGS shapes to meet bandgap requirements and layout constraints.
Key words: Defected Ground Structure (DGS), Dispersion Analysis, Electromagnetic Bandgap (EBG), Power/Ground Noise

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