Design of a novel ebg structure and its application in fractal microstrip antenna

被引:14
作者
Cheng, H.R. [1 ]
Song, Q.Y. [1 ]
Guo, Y.C. [2 ]
Chen, X.Q. [1 ]
Shi, X.W. [1 ]
机构
[1] National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an, 710071, Shaanxi
[2] Jiangnan Electronic Communication Research Institute, Jiaxing, 314033, Zhejiang
关键词
D O I
10.2528/PIERC09091403
中图分类号
学科分类号
摘要
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. © 2009, Electromagnetics Academy. All rights reserved.
引用
收藏
页码:81 / 90
页数:9
相关论文
共 13 条
[1]  
Yablonovitch E., Photonic band-gap structure, J. Opt. Soc. Am. B: Opt. Phys., 11, pp. 283-295, (1993)
[2]  
Radisic V., Qian Y., Coccioli R., Itoh T., Novel 2-D photonic bandgap structure for microstrip lines, IEEE Transactions on Microwave and Guided Wave Letters, 8, 2, pp. 69-71, (1998)
[3]  
Fan Y., Rahmat-Samii Y., Reflection phase characterizations of the EBG ground plane for low profile wire antenna applications, IEEE Transactions on Antennas and Propagation, 51, 10, pp. 2691-2703, (2003)
[4]  
Coccioli R., Deal W.R., Itoh T., Radiation characteristics of a patch antenna on a thin PBG substrate, IEEE Transactions on Antennas and Propagation Society International Symposium, 2, pp. 656-659, (1998)
[5]  
Dan Q., Shafai L., The performance of microstrip patch antennas over high impedance EBG substrates within and outside its bandgap, IEEE International Symposium on Microwave Antenn, Propagation and EMC Technologies for Wireless Communications, 2005, pp. 423-426, (2005)
[6]  
Qi L., Salgado H.M., Moura A.M., Pereira J.R., Dual-band antenna design using an EBG artificial magnetic conductor ground plane, IEEE Transactions on Antennas and Propagation Conference, 2008, pp. 217-220, (2008)
[7]  
Sievenpiper D., Lijun Z., Broas R.F.J., Alexopolous N.G., Yablonovitch E., High-impedance electromagnetic surfaces with a forbidden frequency band, IEEE Transactions on Microwave Theory and Techniques, 47, 11, pp. 2059-2074, (1999)
[8]  
Coccioli R., Yang F.-R., Ma K.-P., Itoh T., Aperture-coupled patch antenna on UC-PBG substrate, IEEE Transactions on Microwave Theory and Techniques, 47, pp. 2123-2130, (1999)
[9]  
Li Y., Fan M., Chen F., She J., Feng Z., A novel compact electromagnetic-bandgap (EBG) structure and its applications for microwave circuits, IEEE Transactions on Microwave Theory and Techniques, 53, pp. 183-190, (2005)
[10]  
Zheng Q.-R., Lin B.-Q., Fu Y.-Q., Yuan N.-C., Character-istics and applications of a novel compact spiral electromagnetic band-gap (EBG) structure, Journal of Electromagnetic Waves and Applications, 21, 2, pp. 199-213, (2007)