volume | PIER Journals

Abstract

A compact ultra-wideband (UWB) slot antenna based on a mesh-grid structure is designed. A Boolean differential evolution (BDE) algorithm is used to optimize the mesh-grid structure as well as other parameters of the proposed antenna for good impedance matching in the UWB band. The optimized UWB antenna has a compact size of 24.2 × 32.2 mm and is fabricated and measured. According to the measured results, the proposed antenna yields a wide bandwidth, defined by S₁₁ < -10 dB ranging from 2.8 to 11.2 GHz. And it shows that the BDE algorithm is an effective method for antenna design.

1. Zhu, X.-F. D. Su, "A study of a compact microstrip-FED UWB antenna with an open T-slot," Progress In Electromagnetics Research Letters, Vol. 13, 181-189, 2010.
doi:10.2528/PIERL10030106

2. Sadat, S., M. Houshmand, and M. Roshandel, "Design of a microstrip square-ring slot antenna filled by an H-shape slot for UWB applications," Progress In Electromagnetics Research, Vol. 70, 191-198, 2007.
doi:10.2528/PIER07012002

3. Fallahi , R., A. A. Kalteh, and M. G. Roozbahani, "A novel UWB elliptical slot antenna with band-notched characteristics," Progress In Electromagnetics Research, Vol. 82, 127-136, 2008.
doi:10.2528/PIER08022603

4. Shiu, J.-Y., J.-Y. Sze, and P.-J. Tu, "Compact ultrawideband square slot antenna with an asymmetric protruding stub," Microwave and Optical Technology Letters, Vol. 50, No. 7, 1776-1779, 2008.
doi:10.1002/mop.23544

5. Fan, S.-T., Y.-Z. Yin, L. Kang, S.-J. Wei, Y.-Z. Wang, and K. Song, "Bandwidth enhancement of a coplanar waveguide-fed asymmetrical slot antenna with a rectangular patch," Microwave and Optical Technology Letters, Vol. 52, No. 10, 2259-2261, 2010.
doi:10.1002/mop.25476

6. Choo, H. and H. Ling, "Design of broadband and dual-band microstrip antennas on a high-dielectric substrate using a genetic algorithm," IEE Proceedings Microwaves Antennas and Propagation, Vol. 150, No. 3, 137-142, 2003.
doi:10.1049/ip-map:20030291

7. Kerkhoff, A. J., R. L. Rogers, and H. Ling, "Design and analysis of planar monopole antennas using a genetic algorithm approach," IEEE Transactions on Antennas and Propagation, Vol. 52, No. 10, 2709-2718, 2004.
doi:10.1109/TAP.2004.834429

8. Ohira, M., M., H. Deguchi, M. Tsuji, and H. Shigesawa, "Multiband single-layer frequency selective surface designed by combination of genetic algorithm and geometry-refinement technique," IEEE Transactions on Antennas and Propagation, Vol. 52, No. 11, 2925-2931, 2004.
doi:10.1109/TAP.2004.835289

9. Zhang, L., Y. C. Jiao, Z. B. Weng, and F. S. Zhang, "Design of planar thinned arrays using a boolean differential evolution algorithm," IET Microw. Antennas Propag., Vol. 4, No. 12, 2172-2178, 2010.
doi:10.1049/iet-map.2009.0630

10. Johnson , J. M. and V. Rahmat-Samii, "Genetic algorithms in engineering electromagnetics," IEEE Antennas and Propagation Magazine, Vol. 39, No. 4, 7-21, 1997.
doi:10.1109/74.632992

11. Liu, X. F., Y. B. Chen, Y. C. Jiao, and F. S. Zhang, "Modified particle swarm optimization for patch antenna design based on IE3D," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 13, 1819-1828, 2007.

Dr. Lei Xie

Dr. Yong-Chang Jiao