A compact printed monopole antenna with enhanced bandwidth and variable dual band notch for UWB applications

Juin Acharjee, Kaushik Mandal, Sujit Kumar Mandal and Partha Pratim Sarkar

Journal of Electromagnetic Waves and Applications, 2016, vol. 30, issue 15, 1980-1992

Abstract: This article presents a compact, enhanced bandwidth, and variable dual band notched printed monopole antenna for ultra wideband (UWB) applications. By inserting a simple inverted L-shaped slot in the ground plane and modifying the lower edge of the patch, wider bandwidth with usable fractional bandwidth of 139.2% (3.1–17.3 GHz) is achieved whereas two inverted U-shaped slots in the corner modified patch are embedded to realize two notch bands exactly at WiMAX (3.25–3.75 GHz) and WLAN (5.1–5.9 GHz). A precise design formula is also proposed to calculate the length of the slots. The proposed simple antenna structure with a 50 Ω feed line has been obtained within a small size of 0.11λ × 0.19λ. The simulated results are validated using measured results to show potentiality of the proposed antenna structure in UWB applications.

Date: 2016
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DOI: 10.1080/09205071.2016.1234419

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