Abstract
In the present work, characteristic mode analysis (CMA) is utilized for analyzing and designing a novel ultra-wideband (UWB) antenna having a pentagon-shaped structure. The designed antenna gives the impedance bandwidth in the range of 3.1-12.7 GHz, covering the whole UWB range. The developed antenna has compact dimensions 35 × 30 × 1.6 mm with good directional radiation properties and gain characteristics. The antenna is analyzed using the latest analytical tool known as CMA. The parameters like modal significance, modal surface current distribution, and modal patterns are generated and studied in arriving at the operational behavior of the proposed antenna structure.
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