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In this article, a novel frequency switchable method for Ultra‐Wide‐Band (UWB) microstrip antenna with dual notches is presented and discussed. This method is based on hexagonal‐shaped Split Ring Resonator (SRR) metamaterial cells located close to the 50‐Ω feed line and ideal switches inserted at the inner and the outer SRR of each cell. The incorporation of these ideal switches helps in changing...
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