Miniature wideband stacked microstrip patch antenna based on the Sierpinski fractal geometry

Abstract

Abstract-The main interest in the design of a miniature Microstrip Patch Antenna (MPA) is its small size in conjunction with the well-known advantages of a MPA (cost, profile, weight). However there is a big constraint on the bandwidth limitation either in a miniature antenna or in a MPA. The proposed solution to overcome such problem is to couple a miniature parasitic resonator to the miniature active patch forming a wideband small stacked microstrip patch antenna.

Modified Microstrip Aperture Coupled Patch Antenna with Sierpinski Fractal Geometry

“…Fractal geometry has been proved as an alternative design methodology to design miniature antennas like miniature microstrip antennas using the Sierpinski bowtie [1] and Sierpinski gasket [2]. On the other hand, the self-similarity property of fractal shapes can fulfill the renewed interest in multiband antennas.…”

Radiation properties of modified fractal microstrip antennas

“…Recently, in line with the broadband and multiband trends of wireless communication devices, research on fractal antennas has been carried out extensively, since this type of antenna is considered to exhibit multiband characteristics [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. However, the fractal structure of the Sierpinski Gasket type studied in this paper has been used mainly in the radiating elements of monopole antennas for multiband applications [5,6,8,10,14].…”

“…1 Broadband operations have been realized by stacking two types of SG-MSAs with different element dimensions [1,4]. 2 A metallic shorting pin is inserted at an appropriate location of an SG-MSA element [2] or the element structure of the SG-MSA element is deformed [7] to realize multiband characteristics.…”

Radiation properties of fractal microstrip antennas

“…However, this type of antenna has mainly been used for the radiating elements of a monopole antenna with a three-dimensional configuration for multiband operation [3,5,7]. On the other hand, examples of research on fractal planar antennas of triangular shape in a planar configuration include (1) stacking of triangular MSA elements with two types of Sierpinski gasket configuration (SG-MSA) for broadband operation [1] and (2) realization of multiband operation by installing a short pin at an appropriate location on the SG-MSA [2]. However, it is not easy to realize a unidirectional radiation pattern in all frequency ranges.…”

“…Recently, along with multiband and wideband applications of wireless communication devices, research on fractal antennas with multiband characteristics has been carried out extensively [1][2][3][4][5][6][7][8][9][10][11][12]. However, this type of antenna has mainly been used for the radiating elements of a monopole antenna with a three-dimensional configuration for multiband operation [3,5,7].…”