Modified hexagonal Sierpinski gasket-based antenna design with multiband and miniaturized characteristics for UWB wireless communication

Abstract

Abstract:A modified hexagonal Sierpinski gasket-based fractal antenna is proposed for ultrawide-band (UWB) wireless applications. The designed antenna has miniaturized (36 × 48 mm 2 ) and multiband characteristics. Two design guidelines, the partial ground plane technique and the circular annular ring patch on the substrate, are applied to improve impedance matching and radiation pattern characteristics. According to the simulation results, the proposed modified antenna has a reflection coefficient S11 of less than -15 dB, a linear phase of the reflection coefficient, 80% radiation efficiency, 2-4.5 dBi antenna gain, and omnidirectional radiation pattern properties over the full UWB spectrum (3.1-10.6 GHz). Simulated results obtained for this antenna show the expected good radiation behavior within the full 7.5-GHz UWB bandwidth.

Design and Analysis of Hetero Triangle Linked Hybrid Web Fractal Antenna for Wide Band Applications

“…Kaka and Toycan [13] proposed a hexagonal Sierpinski gasket antenna with multiband characteristics for UWB wireless communication applications operating in 3.1-10.6 GHz with 109.48% bandwidth. Lin and Chuang [14] proposed a 3-12 GHz UWB planar triangular monopole antenna with ridged ground plane with 120% bandwidth.…”

Planar array of right-angled isosceles triangular microstrip antenna using Koch and meander lines for the Internet of things

“…The standing waves can be reduced by matching the load of the antenna to the characteristic impedance of the line in order to achieve maximum power transfer. Various techniques have been used to achieve this matching by using substrate material that has a dielectric constant with high value, patches that have slots in them, fractals, defected ground structure, electronic band gap structures, metamaterials, and shorting pins and plates [3][4][5][6][7]. Apart from losses there are methods to improve the efficiency, bandwidth, and gain, which can be achieved by increasing the height of the dielectric substrate, decreasing the relative permittivity, and performing dual-band operations [8,9].…”