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A Novel Compact Wideband Planar Electromagnetic Band-Gap Structure |
Liu Tao;Cao Xiang-yu; Ma Jia-jun |
The Telecommunication Engineering Institute, AFEU, Xi’an 710077, China |
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Abstract Aiming at the characteristic of relative narrower bandwidth of present Electromagnetic Band-Gap (EBG) structure, according to the physical mechanism of EBG structures and equivalent circuit model, a novel compact wideband planar EBG structure is proposed constructed on low permittivity low-cost substrate in this paper. The measured results show that relative bandwidth of the novel structure reaches 54.1% and obtain more than 100% bandwidth improvement, and simultaneously the center frequency is reduced by 25.2%. The objective of realizing compact wideband UC-EBG structure is attained.
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Received: 21 December 2007
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