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2009-06-29
A Reconfigurable U-Koch Microstrip Antenna for Wireless Applications
By
Progress In Electromagnetics Research, Vol. 93, 355-367, 2009
Abstract
In this paper, a low-cost multiband printed-circuit-board (PCB) antenna that employs Koch fractal geometry and tunability is demonstrated. The antenna is fabricated on a 1.6 mm-thick FR4-epoxy substrate with dimensions 4 cm × 4.5 cm, is microstrip-line fed and has a partial ground plane flushed with the feed line. The proposed antenna is simulated using the Finite-Element Method for three different switching cases and the return loss is measured for each case. It is shown that the antenna can cover the bands of several applications including 3G, WiFi, WiMAX as well as a portion of the UWB range. The radiation patterns are satisfactorily omnidirectional across the antenna's operation bands.
Citation
Ali H. Ramadan, Karim Youssef Kabalan, Ali El-Hajj, Shahwan Khoury, and Mohammed Al-Husseini, "A Reconfigurable U-Koch Microstrip Antenna for Wireless Applications," Progress In Electromagnetics Research, Vol. 93, 355-367, 2009.
doi:10.2528/PIER09050605
References

1. Khalid, T. M., "Combined fractal dipole wire antenna," 2nd International ITG Conference on Antennas, 176-180, Munich, Germany, March 28--30, 2007.

2. Torpi, H. and Y. Damgaci, "Design of dual-band reconfigurable smart antenna," PIERS Proceedings, 425-429, Prague, Czech Republic, August 27--30, 2007.

3. Liu, W. C., "Printed double S-shaped monopole antenna for wideband and multiband operation of wireless communications," IEE Proc.-Microw. Antennas Propag., Vol. 151, No. 6, 473-476, December 2004.
doi:10.1049/ip-map:20041035

4. Peroulis, D., K. Sarabandi, and L. P. B. Katehi, "Design of reconfigurable slot antennas," IEEE Transactions on Antennas and Propagation, Vol. 53, No. 2, 645-654, February 2005.
doi:10.1109/TAP.2004.841339

5. Behdad, N. and K. Sarabandi, "A compact dual-/multi-band wireless LAN antenna," IEEE Antennas and Propagation Society International Symposium, Vol. 2B, 527-530, 2005.

6. Werner, D. H. and S. Ganguly, "An overview of fractal antenna engineering research," IEEE Antennas and Propagation Magazine, Vol. 45, No. 1, 38-57, February 2003.
doi:10.1109/MAP.2003.1189650

7. El-Khamy, S. E., "New trends in wireless multimedia communications based on chaos and fractals," 21st National Radio Science Conference, 1-25, Cairo, Egypt, March 16--18, 2004.

8. Balanis, C. A., Antenna Theory, Analysis and Design, John Wiley and Sons, 2005.

9. Krupenin, S. V., "Modeling of fractal antennas," Journal of Communications Technology and Electronics, Vol. 51, No. 5, May 2006.
doi:10.1134/S1064226906050068

10. Vinoy, K. J., J. K. Abraham, and V. K. Varadan, "On the relationship between fractal dimension and the performance of multi-resonant dipole antennas using Koch curves,", Vol. 51, No. 9, 2296-2303, Septembe 2003.

11. Krishna, D. D., M. Gopikrishna, C. K. Anandan, P. Mohanan, and K. Vasudevan, "CPW-fed Koch fractal slot antenna for WLAN/WiMAX applications," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 389-392, 2008.
doi:10.1109/LAWP.2008.2000814

12. Anagnostou, D. E., J. Papapolymerou, M. M. Tentzeris, and C. G. Christodoulou, "A printed log-periodic Koch-dipole array (LPKDA)," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 456-460, 2008.
doi:10.1109/LAWP.2008.2001765

13. Rao, P. N. and N. V. S. N. Sarma, "A single feed circularly polarized fractal shaped microstrip antenna with fractal slot," Progress In Electromagnetics Research Symposium, Hangzhou, China, March 24--28, 2008.

14. Zhang, J., A. Wang, and P. Wang, "A survey on reconfigurable antennas," Proceedings of the International Conference on Microwave and Millimeter Wave Technology, Vol. 3, 1156-1159, April 21--24, 2008.

15. Anagnostou, D. E., G. Zheng, L. Feldner, M. T. Chryssomallis, J. C. Lyke, J. Papapolymerou, and C. G. Christodoulou, "Silicon-etched re-configurable self-similar antenna with RF-MEMS switches," Proceedings of Antennas and Propagation Society Symposium, Vol. 2, 1804-1807, June 20--25, 2004.

16. Liu, J., J. Zhang, W. Wang, and D. Wang, "Compact reconfigurable microstrip antenna for multi-band wireless applications," IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 608-611, 2007.
doi:10.1109/MAPE.2007.4393693

17. Xiao, G. and S. Zhu, "Novel fractal and mems fractal antennas," International Conference on Microwave and Millimeter Wave Technology, 1-4, April 18--21, 2007.

18. Kingsley, N., D. E. Anagnostou, M. Tentzeris, and J. Papapolymerou, "RF MEMS sequentially reconfigurable sierpinski antenna on a °exible organic substrate with novel DC-biasing technique," Journal of Microelectromechanical Systems, Vol. 16, No. 5, 1185-1192, October 2007.
doi:10.1109/JMEMS.2007.902462

19. Costantine, J., C. G. Christodoulou, and S. E. Barbin, "A new reconfigurable multi band patch antenna," Microwave and Optoelectronics Conference SBMO/IEEE MTT-S International, 75-78, October 29--November 1, 2007.

20. Zammit, J. A. and A. Muscat, "Tunable microstrip antenna using switchable patches," The 2008 Antennas and Propagation Conference (LAPC 2008), 233-236, March 17--18, 2008.

21. Ansoft HFSS, Pittsburg, , PA 15219, USA.