Abstract

AbstractIn this article, a novel printed monopole antenna for ultra‐wideband applications with variable frequency band‐notch characteristic is presented.The proposed antenna consists of a square radiating patch with a modified interdigital slot and a ground plane with a pair of inverted L‐shaped sleeves which provides a wide usable fractional bandwidth of more than 130% (2.9–14.6 GHz). By cutting a modified interdigital slot with variable dimensions on the radiating patch frequency band‐stop performance is generated, and we can control its characteristics such as band‐notch frequency and its bandwidth. The designed antenna has a small size of 10 × 16 mm2 while showing the band rejection performance in the frequency band of 5.04–5.96 GHz. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26488

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