1. Diaz, N. R. and M. Holzbock, "Aircraft cabin propagation for multimedia communications ," Proc. European Mobile/Personal Satcoms Conference 2002 , Sep. 25-26, 2002.        Google Scholar

2. Niebla, C. P., "Coverage and capacity planning for aircraft incabin wireless heterogeneous network," Proc. IEEE Vehicular Technology Conference 2003-Fall, 1658-1662, Oct. 6-9, 2003.        Google Scholar

3. Li, R., B. Pan, J. Laskar, and M. M. Tentzeris, "A novel low-profile broadband dual-frequency planar antenna for wireless handsets ," IEEE Trans. Antennas Propagat., Vol. 56, 1155-1162, 2008.
doi:10.1109/TAP.2008.919171        Google Scholar

4. Hwang, K. C., "Dual-wideband monopole antenna using a modified half-Sierpinski fractal gasket," Electron. Lett., Vol. 45, 487-489, 2009.
doi:10.1049/el.2009.0270        Google Scholar

5. Mahatthanajatuphat, C., S. Saleekaw, P. Akkaraekthalin, and M. Krairiksh, "A rhombic patch monopole antenna with modified Minkowski fractal geometry for UMTS, WLAN, and mobile WiMAX application," Progress In Electromagnetics Research, Vol. 89, 57-74, 2009.
doi:10.2528/PIER08111907        Google Scholar

6. Mahatthanajatuphat, C., P. Akkaraekthalin, S. Saleekaw, and M. Krairiksh, "A bidirectional multiband antenna with modified fractal slot fed by CPW," Progress In Electromagnetics Research, Vol. 95, 59-72, 2009.
doi:10.2528/PIER09061603        Google Scholar

7. Garg, R. and P. Bhartia, Microstrip Antenna Handbook, Artech House, Boston, 2001.

8. Kumar, G. and K. P. Ray, Broadband Microstrip Antennas, Artech House, Boston, 2003.

9. Lee, R. Q., K. F. Lee, and J. Bobinchak, "Characteristics of a two-layer electromagnetically coupled rectangular patch antenna," Electron. Lett., Vol. 23, No. 20, 1070-1072, 1987.
doi:10.1049/el:19870748        Google Scholar

10. Chen, W., K. F. Lee, and R. Q. Lee, "Spectral-domain moment method analysis of coplanar microstrip parasitic subarrays," Microw. Opt. Technol. Lett., Vol. 6, No. 3, 157-163, 1993.
doi:10.1002/mop.4650060302        Google Scholar

11. Shackelford, A. K., K. F. Lee, and K. M. Luk, "Design of small-Size wide-bandwidth microstip patch antennas ," IEEE Antennas and Propagation Magazine, Vol. 45, 75-83, Feb. 2003.
doi:10.1109/MAP.2003.1189652        Google Scholar

12. Weigand, S., G. H. Huff, K. H. Pan, and J. T. Bernhard, "Analysis and design of broad-band single-layer rectangular U-slot microstrip patch antennas," IEEE Trans. Antennas and Propagat., Vol. 51, No. 3, 457-468, Mar. 2003.
doi:10.1109/TAP.2003.809836        Google Scholar

13. Tong, K. F., K. M. Luk, K. F. Lee, and R. Q. Lee, "A broad-band U-slot rectangular patch antenna on a microwave substrate," IEEE Trans. Antennas and Propagat., Vol. 48, No. 6, 954-960, 2000.
doi:10.1109/8.865229        Google Scholar

14. Lee, K. F., K. M. Luk, K. F. Tong, Y. L. Yung, and T. Huynh, "Experimental study of the rectangular patch with a U-shaped slot," Antennas and Propagation Society International Symposium, Vol. 1, 10-13, 1996.        Google Scholar

15. Tong, K. F., K. M. Luk, K. F. Lee, and S. M. Shum, "Analysis of broadband U-slot microstrip antenna," Tenth International Conference on Antennas and Propagation, Vol. 1, 110-113, 1997.        Google Scholar

16. Bhalla, R. and L. Shafai, "Resonance behaviour of single U slot and dual U slot antenna," IEEE Antennas and Propagation Society International Symposium, Vol. 2, 700-703, 2001.        Google Scholar

17. Balanis, C. A., Antenna Theory Analysis and Design, 2 Ed., John Wiley and Sons, Hoboken, NJ, USA, 2004.

18. Vedaprabhu, B. and K. J. Vinoy, "A double U-slot patch antenna with dual wideband characteristics," Proc. National Conference on Communications, 361-365, Jan. 2010.        Google Scholar