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3. Habib, M. A., T. A. Denidni, and G. Y. Delisle, Design of a new wide-band CPW-fed a circular slot antenna, Conference IEEE, 565-568, 2005.
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5. Ma, T.-G. and C.-H. Tseng, "An ultrawideband coplanar waveguide-fed tapered ring slot antenna," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 4, 1105-1110, 2006.
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6. McCorkle, J. W., "Electrically small planar (unbalanced) UWB antenna," XtremeSpectrum.
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