1. Ammann, M. J., "Square planar monopole antenna," Inst. Elect. Eng. NCAP, No. 461, 37-40, IEE Publication, York, UK, 1999.
2. Ammann, M. J., "Control of the impedance bandwidth of wideband planar monopole antennas using a beveling technique," Microwave Opt. Technology Letter, Vol. 30, No. 40, 229-232, Aug. 2001.
doi:10.1002/mop.1273
3. Ammann, M. J. and Z. N. Chen, "Wideband monopole antennas for multi-band wireless systems," IEEE Antennas Propagt. Mag., Vol. 45, No. 2, 146-150, Apr. 2003.
doi:10.1109/MAP.2003.1203133
4. Wu, X. H. and Z. N. Chen, "Comparison of planar dipoles in UWB applications," IEEE Trans. Antennas Propagt., Vol. 53, 1973-1983, Jun. 2005.
5. Agrawall, N. P., G. Kumar, and K. P. Ray, "Wide-band planar monopole antennas," IEEE Trans. Antennas Propagt., Vol. 46, 294-295, Feb. 1998.
doi:10.1109/8.660976
6. Brown, G. H. and O. M. Woodward, "Experimentally determined radiation characteristics of conical and triangular antennas," RCA Rev., Vol. 13, No. 4, 425-452, Dec. 1952.
7. Wong, K. L. and Y. F. Lin, "Stripline-fed printed triangular monopole," Electron. Lett., Vol. 33, 1428-1429, Aug. 1997.
doi:10.1049/el:19970960
8. Lee, J. P., S. O. Park, and S. K. Lee, "Bow-tie wideband monopole antenna with the novel impedance-bandwidth technique," Microwave Opt. Technology Letter, Vol. 36, No. 40, 448-452, Jun. 2002.
doi:10.1002/mop.10347
9. Johnson, J. M. and Y. Rahmat-Samii, "The tab monopole," IEEE Trans. Antennas Propagt., Vol. 45, 187-188, Jan. 1997.
doi:10.1109/8.554262
10. Lee, K. F., S. L. S. Yang, and A. A. Kishl, "Dual- and multi-band U-slot antenna," IEEE Transactions on Antennas and Propagation Lett., Vol. 7, 645-647, 2008.
11. Lee, K. F., K. M. Luk, T. Mak, and S. S. L. Yang, "Dual and triple band stacked patch antennas with U-slots," Proceedings of the 2010 EuCap Conference, Apr. 2010.
12. Lin, C.-C. and H.-R. Chuang, "A 3{12 GHz UWB planar triangular monopole antenna with ridged ground-plane," Progress In Electromagnetics Research, Vol. 83, 307-321, 2008.
doi:10.2528/PIER08070502
13. Ray, K. P., G. Kumar, and P. V. Anob, "Wide band planar modified triangular monopole antennas," MOTL, Vol. 49, No. 1, Mar. 2007.
14. Lin, C. C., Y. C. Kan, L. C. Kuo, and H. R. Chuang, "A planar triangular monopole antenna for UWB communication," IEEE Microwave and Wireless Components Letters, Vol. 15, No. 10, Oct. 2005.
15. Eldek, A. A., "Numerical analysis of a small ultra wideband microstrip-FED tap monopole antenna," Progress In Electromagnetic Research, Vol. 65, 59-69, 2006.
doi:10.2528/PIER06082305
16. Liu, W.-C. and C.-F. Hsu, "CPW-FED notched monopole antenna for umts/imt-2000/WLAN applications," Journal of Electromagnetic Wave and Applications, Vol. 21, No. 6, 841-851, 2007.
doi:10.1163/156939307780749138
17. Gao, S. and A. Sambell, "A simple broadband printed antenna," Progress In Electromagnetic Research, Vol. 60, 119-130, 2006.
doi:10.2528/PIER05092603
18. Chen, X. and K. Huang, "Wideband properties of fractal bowtie dipoles," Journal of Electromagnetic Wave and Applications, Vol. 20, No. 11, 1511-1518, 2006.
doi:10.1163/156939306779274345
19. Zhou, H. J., Q. Z. Liu, J. F. Li, and J. L. Guo, "A swallow-tailed wideband planar monopole antenna with semi-elliptical base," Journal of Electromagnetic Wave and Applications, Vol. 21, No. 9, 1257-1264, 2007.