1. "Report of the spectrum e±ciency working group," Tech. Rep. , FCC Spectrum Policy Task Force, 2002.
doi:10.1109/LAWP.2009.2039743 Google Scholar
2. Deng, C., Y. J. Xie, and P. Li, "CPW-fed planar printed monopole antenna with impedance bandwidth enhanced," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 1394-1397, 2009.
doi:10.1109/TAP.2005.858598 Google Scholar
3. Liang, J., C. C. Chiau, X. Chen, and C. G. Parini, "Study of printed circular disc monopole antennas for UWB systems," IEEE Transactions on Antennas and Propagation, Vol. 53, No. 11, 3500-3504, Nov. 2005.
doi:10.1109/LAWP.2006.878882 Google Scholar
4. Angelopoulos, E. S., A. Z. Anastopoulos, D. I. Kaklamani, A. A. Alexandridis, F. Lazarakis, and K. Dangakis, "Circular and elliptical CPW-fed slot and microstrip-fed antennas for ultra wideband applications," IEEE Antennas and Wireless Propagation Letters, Vol. 5, 294-297, 2006.
doi:10.1002/mop.27218 Google Scholar
5. Wang, C., Z.-H. Yan, B. Li, and S. Li, "An ultra-wideband CPW fed monopole antenna with fan shaped structure," Microwave and Optical Technology Letters, Vol. 54, No. 12, 2878-2880, Dec. 2012. Google Scholar