volume | PIER Journals

Abstract

An important application of electromagnetic band-gap (EBG) structures is reducing the mutual coupling and eliminating the scan blindness for array antennas. However, some array antennas have small element spacing,and traditional mushroom-like EBG materials are too large. Under this condition, miniature EBG structures are desired for these array antennas. In this paper, a novel method using spiral ground plane is proposed to reduce EBG structure sizes. A low frequency band-gap can be obtained by adjusting the width and length of the spiral arms. An experimental prototype is fabricated to validate the analysis. The measurement results show a good agreement with the simulation data. Compared with traditional mushroom-like EBG structures, the proposed EBG achieves more than 77% size diminution.

1. Yang, F. and Y. Rahmat-Samii, "Microstrip antennas integrated with electromagnetic band-gap (EBG) structures: A low mutual coupling design for array applications," IEEE Trans. Antennas and Propagat., Vol. 51, No. 10, 2936-2946, Oct. 2003.
doi:10.1109/TAP.2003.817983 Google Scholar

2. Fu, Y. Q., Q. R. Zheng, Q. Gao, and G. H. Zhang, "Mutual coupling reduction between large antenna arrays using electromagnetic bandgap (EBG) structures," Journal of Electromagnetic Waves and Applications, Vol. 20, No. 6, 819-825, 2006.
doi:10.1163/156939306776143415 Google Scholar

3. Fu, Y. and N. Yuan, "Elimination of scan blindness in phased array of microstrip patches using electromagnetic bandgap materials," IEEE Antennas and Wireless Propagat. Lett., Vol. 3, 63-65, 2004. Google Scholar

4. Apostolopoulos, G., A. Feresidis, and J. C. Vardaxoglou, "Miniaturised EBG structures based on complementary geometries," IEEE APS Int Symp. Dig., 2253-2256, Jul. 2006. Google Scholar

5. Zheng, Q. R., Y. Q. Fu, and N. C. Yuan, "A novel compact spiral electromagnetic band-gap (EBG) structure," IEEE Trans. Antennas and Propagat., Vol. 56, No. 6, 1656-1660, Jun. 2008.
doi:10.1109/TAP.2008.923305 Google Scholar

6. Kim, Y., F. Yang, and A. Z. Elsherbeni, "Compact artificial magnetic conductor designs using planar square spiral geometries," Progress In Electromagnetics Research, Vol. 77, 43-54, 2007.
doi:10.2528/PIER07072302 Google Scholar

7. Lin, B. Q., Q. R. Zheng, and N. C. Yuan, "A novel spiral high impedance surface structure for size reduction," Microwave and Optical Technology Lett., Vol. 49, No. 9, 2186-2189, Sep. 2007.
doi:10.1002/mop.22691 Google Scholar

8. McVay, J., N. Engheta, and A. Hoorfar, "High impedance metamaterial surfaces using Hilbert-curve inclusions," IEEE Microw. Wireless Components Lett., Vol. 14, No. 3, 130-132, Mar. 2004.
doi:10.1109/LMWC.2003.822571 Google Scholar

9. Yang, F. and Y. Rahmat-Samii, Electromagnetic Band Gap Structures in Antenna Engineering, Cambridge University Press, 2009.

10. Yang, F., J. Chen, Q. Rui, and A. Elsherbeni, "A simple and efficient FDTD/PBC algorithm for scattering analysis of periodic structures," Radio Science., Vol. 42, No. 4, RS4004, Jul. 2007.
doi:10.1029/2006RS003526 Google Scholar

11. Sievenpiper, D., High-impedance electromagnetic band-gap surface, Ph.D. Dissertation, University of California, Los Angeles, 1999.

Dr. Huan-Huan Xie

Dr. Yong-Chang Jiao

Mr. Kun Song

Dr. Bin Yang