Table of Contents
International Journal of Microwave Science and Technology
Volume 2008 (2008), Article ID 784526, 7 pages
http://dx.doi.org/10.1155/2008/784526
Research Article

A New Design of Compact 𝟒 × 𝟒 Butler Matrix for ISM Applications

1Laboratory of Electronic, Faculty of Sciences of Tunis, Tunis El Manar University, 2092 Tunis, Tunisia
2Laboratoire de Recherche Télébec en Communications Souterraines LRTCS 450, 3e Avenue, Local 103 Val-d'Or (Québec), Canada J9P 1S2
3INRS-EMT, Université de Québec, Place Bonaventure 800, de la Gauchtière Ouest West, Suite 6900, Montréal, QC, Canada H5A 1K6

Received 5 May 2008; Revised 9 September 2008; Accepted 22 December 2008

Academic Editor: Kenjiro Nishikawa

Copyright © 2008 Mbarek Traii et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. W. C. Liu, “Optimal design of dualband CPW-FED G-shaped monopole antenna for WLAN application,” Progress in Electromagnetics Research, vol. 74, pp. 21–38, 2007. View at Publisher · View at Google Scholar
  2. T. A. Denidni and T. E. Libar, “Wide band four-port Butler matrix for switched multibeam antenna arrays,” in Proceedings of the 14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '03), vol. 3, pp. 2461–2464, Beijing, China, September 2003. View at Publisher · View at Google Scholar
  3. T. Hirota, A. Minakawa, and M. Muraguchi, “Reduced-size branch-line and rat-race hybrids for uniplanar MMIC's,” IEEE Transactions on Microwave Theory and Techniques, vol. 38, no. 3, pp. 270–275, 1990. View at Publisher · View at Google Scholar
  4. T. K. G. Kwang and P. Gardner, “4×4 Butler matrix beam forming network using novel reduced size branchline coupler,” in Proceedings of the 31st European Microwave Conference (EuMC '01), pp. 1–4, London, UK, September 2001. View at Publisher · View at Google Scholar
  5. M. Bona, L. Manholm, J. P. Starski, and B. Svensson, “Low-loss compact Butler matrix for a microstrip antenna,” IEEE Transactions on Microwave Theory and Techniques, vol. 50, no. 9, pp. 2069–2075, 2002. View at Publisher · View at Google Scholar
  6. K. Wincza and S. Gruszczynski, “A broadband 4×4 Butler matrix for modern-day antennas,” in Proceedings of the 35th European Microwave Conference, vol. 2, pp. 1331–1334, Paris, France, October 2005. View at Publisher · View at Google Scholar
  7. T. N. Kaifas and J. N. Sahalos, “On the design of a single-layer wideband Butler matrix for switched-beam UMTS system applications,” IEEE Antennas and Propagation Magazine, vol. 48, no. 6, pp. 193–204, 2006. View at Publisher · View at Google Scholar
  8. M. Ueno, “A systematic design formulation for Butler matrix applied FFT algorithm,” IEEE Transactions on Antennas and Propagation, vol. 29, no. 3, pp. 496–501, 1981. View at Publisher · View at Google Scholar
  9. G. F. Khodae, J. Nourinia, and C. Ghobadi, “A practical miniaturized U-slot patch antenna with enhanced bandwidth,” Progress in Electromagnetics Research B, vol. 3, pp. 47–62, 2008. View at Publisher · View at Google Scholar
  10. J.-J. Wu, “A multimode interference coupler with exponentially tapered waveguide,” Progress in Electromagnetics Research C, vol. 1, pp. 113–122, 2008. View at Publisher · View at Google Scholar
  11. HP-ADS, Momentum Users Manuel, Palo Alto, Calif, USA, Agilent Technologies, 2005.
  12. M. Nedil, T. A. Denidni, and L. Talbi, “Novel Butler matrix using CPW multilayer technology,” IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 1, pp. 499–507, 2006. View at Publisher · View at Google Scholar
  13. T. Mbarek, N. Fadlallah, and G. Ali, “Performance comparison of 3×4 Butler matrices designed with 0 dB couplers and bi-layer microstrip technology,” The Mediterranean Journal of Electronics and Communications, vol. 3, no. 4, pp. 152–158, 2007. View at Google Scholar
  14. A. R. Mallahzadeh, A. A. Dastranj, and H. R. Hassani, “A novel dual-polarized double-ridged horn antenna for wideband applications,” Progress in Electromagnetics Research B, vol. 1, pp. 67–80, 2008. View at Publisher · View at Google Scholar
  15. T. N. Kaifas and J. N. Sahalos, “A 4×4 Butler matrix optimized for umts applications,” Microwave and Optical Technology Letters, vol. 49, no. 3, pp. 585–588, 2007. View at Publisher · View at Google Scholar
  16. M. Nedil, T. A. Denidni, and L. Talbi, “Design of a broadband slot antenna fed by CPW for wireless application at 5.8 GHz,” in Proceedings of the IEEE Vehicular Technology Conference (VTC '04), vol. 1, pp. 18–21, Milano, Italy, May 2004.
  17. J. He, B.-Z. Wang, Q.-Q. He, Y.-X. Xing, and Z.-L. Yin, “Wideband X-band microstrip Butler matrix,” Progress in Electromagnetics Research, vol. 74, pp. 131–140, 2007. View at Publisher · View at Google Scholar