MINIATURISATION OF PATCH ANTENNA USING NOVEL FRACTAL GEOMETRY

In the Field of low profile antennamicro strip patch antennas have attracted many researchers due to small sizeand low cost of fabrication. One of trending member of new designs is Fractalantenna. Fractal shapes are recursive/repetitive self-similar geometries, dueto this self-similarity they can provide high gain, multiband, widebandsolutions and design miniature antenna. Fractal shapes are widely used incomputing, analysis and design; recent trends suggest positive outcomes ofusing fractal shapes in electromagnetics and communication system. In thispaper Jerusalem cube fractal shape is introduced in probe fed conventionalpatch antenna for L1 band. A dual band antenna resonating at 1.41 GHz (L) and3.37 (S) GHz, band is constructed using said fractal shape. The comparison ofReturn loss, Gain, VSWR, % miniaturisation and radiation patterns are shownwith conventional patch antenna. Analysis is done on RT duroid 5880 withdielectric constant εr = 2.2. The novel fractal antenna is designed,simulated using an soft HFSS 13.0.