Abstract
AbstractThe objective of this paper is to design and analyze compact size multiband fractal patch antenna suitable for multiband applications. The proposed fractal antenna consists of a main patch, a ground plane and a 50 Ω feed line. The dielectric material selected for the design is Epoxy FR4, which has dielectric constant of 4.4 and height of the substrate is 1.57 mm. The antenna is occupying an area of 20 × 24 mm2 for the ground plane. A parametric study of the proposed fractal patch antenna is carried out to achieve multiband performance. The effects of addition of self-similar shapes with smaller dimensions in step by step iterative process have been investigated based on the antenna performance. The study also includes design methodology, frequency setting, 3D polar plot, radiation patterns, gain and directivity parameter analysis of proposed antenna design. The geometry is simulated using Ansoft HFSS software.KeywordsBandwidthBeamwidthDirectivityFractalGainMultibandPatchRadiation patternResonant frequencyReturn lossVSWR
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