Abstract
AbstractIn this article, we present a novel design of dual band‐notch printed slot antenna for ultrawideband (UWB) applications. The antenna consists of a square radiating stub and a ground plane structure with two Γ‐shaped slits and Ω‐shaped parasitic structure, which provides a wide usable fractional bandwidth of more than 145% (3.04–17.13 GHz). To increase the impedance bandwidth of the ordinary slot antenna, we use two L‐shaped parasitic structure in the ground plane that with this structure UWB frequency range can be achieved. Additionally, using two Γ‐shaped slits, a single frequency band‐stop performance can be achieved, also to create the second notch frequency, we combine an inverted U‐shaped strip with two L‐shaped parasitic structure, that using this additional inverted U‐shaped strip, Ω‐shaped parasitic structure can be created. Simulated and measured results obtained for this antenna show that the proposed slot antenna offers two notched bands, around 3.67–4.13 GHz and 5.09–5.97 GHz, covering all the 5.2/5.8 GHz WLAN, 3.5/5.5 GHz WiMAX and 4‐GHz C‐band range. The antenna has a small dimension of 20 × 20 mm2. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:102–105, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27223
Published Version
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