Abstract
AbstractWe present a novel printed monopole antenna for ultrawideband applications. The proposed antenna consists of a square radiating patch and a ground plane with cross‐shaped slot and conductor‐backed plane, which provides a wide usable fractional bandwidth of more than 130% (3.06–12.87 GHz). By cutting a modified cross‐shaped slot with variable dimensions on the ground plane and also by inserting cross‐shaped conductor‐backed plane, additional resonances are excited and hence much wider impedance bandwidth can be produced, especially at the higher band. The designed antenna has a small size of 12 × 18 mm2. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behavior within the UWB frequency range. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2656–2659, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27138
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