A multinotched octagonal shaped fractal UWB antenna. Issue 11 (27th August 2014)

• Record Type: Journal Article
• Authors: Tripathi, Shrivishal; Mohan, Akhilesh; Yadav, Sandeep
• Is Part Of: Microwave and optical technology letters. Volume 56:Issue 11(2014:Nov.)
• Page Start: 2469
• Page End: 2473
• Publication Date: 2014-08-27
• Subjects: Microwaves -- Periodicals; Optics -- Periodicals; 621
• DOI: 10.1002/mop.28629
• Languages: English
• ISSNs: 0895-2477

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p>In this article, a simple design approach for small ultrawideband (UWB) antenna is presented. The small size and wideband operability is obtained by introducing Minkowski like fractal geometry in the design. It is observed that addition of fractal elements at the edges of octagonal shape leads to wideband phenomena. Furthermore, the insertion of multiple notches in the ground plane improves return loss characteristic in the desired UWB operational bandwidth of 3.1–10.6 GHz. The compact 16.5 × 13.5 mm² antenna geometry size exhibits nearly omnidirectional radiation pattern, with VSWR &lt; 2 over the entire UWB frequency range. The optimized antenna is fabricated and measured using vector network analyzer. The measured characteristics are in good agreement with the simulated one. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2469–2473, 2014</p> </abstract>