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2009-10-22
Design of a Novel EBG Structure and Its Application in Fractal Microstrip Antenna
By
Progress In Electromagnetics Research C, Vol. 11, 81-90, 2009
Abstract
In this paper, a novel electromagnetic bandgap structure (EBGs) is proposed, which is similar to the mushroom-like EBG. By introducing double reverse split rings (RSR) into the square patch, the size of EBG cell is reduced by 30%, and the bandgap achieves bandwidth about 65%. A fractal microstrip antenna is implemented using the EBGs as a ground plane, and the measured results show that the reduction in the surface wave level is remarkable. Compared with the reference antenna at 5 GHz, an approximately 8 dB improvement of the return loss is achieved, and the back lobe is reduced by 10 dB in E plane and 8.73 dB in H plane at the resonant frequency, respectively. The front-back ratios of the antenna have significantly increased from 4.9 GHz to 5.2 GHz.
Citation
Hai Rong Cheng Qiuyu Song Yu-Chun Guo Xiao-Qun Chen Xiao-Wei Shi , "Design of a Novel EBG Structure and Its Application in Fractal Microstrip Antenna," Progress In Electromagnetics Research C, Vol. 11, 81-90, 2009.
doi:10.2528/PIERC09091403
http://www.jpier.org/PIERC/pier.php?paper=09091403
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