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Enhanced bandwidth small E-Shaped monopole antenna for UWB applications with variable frequency band-notch function



In this article, a novel printed monopole antenna for ultra wideband applications with variable frequency band-notch characteristic is presented.The proposed antenna consists of an E-shaped radiating patch with two L-shaped arms and a T-shaped arm which provides a wide usable fractional bandwidth of more than 130% (2.9–14 GHz). By inserting two modified L-shaped arms with variable dimensions on the E-shaped radiating patch frequency band-stop performance is generated and also by inserting T-shaped arm this performance is improved. We can control band-stop performance characteristics such as band-notch frequency and its bandwidth. The designed antenna has a small size of 10 × 17 mm2 while showing the band rejection performance in the frequency band of 5.01–5.98 GHz. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:267–271, 2012 View this article online at DOI 10.1002/mop.26487