A super-wideband antenna based on a propeller shaped printed monopole with CPW feed is presented in this paper. The enhanced bandwidth is obtained by modifying the disk of a conventional circular disk monopole to resemble a propeller. This design produces an extremely wide impedance bandwidth from 3 to 35 GHz with an impedance bandwidth ratio of 11.6:1. The gain of the proposed antenna varies from 4 dBi to 5.2 dBi. The antenna has fairly stable radiation characteristics throughout its operating band. The developed prototype is fabricated and measured. Simulation and experimental results are in good agreement.
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
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, 2005. doi:10.1109/LAWP.2006.878882
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
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, 2012.