Modified Microstrip Aperture Coupled Patch Antenna with Sierpinski Fractal Geometry

Abstract

A two-layer modified microstrip aperture coupled patch antenna with Sierpinski fractal geometry is presented in this paper. The effects of the two coupling slots and the parasitic patch are discussed. The proposed antenna can work on 956 MHz to 968 MHz, 3.654 GHz to 3.78 GHz, and 8.81 GHz to 9.28 GHz three frequency bands, and the maximum gain in each band is 4.64 dBi, 8.46 dBi, and 7.85 dBi, respectively. The simulated result reveals that the Sierpinski patch antenna we proposed in this paper performs better on radiation properties.

Compact modified hourglass-shaped aperture-coupled antenna for radar applications

“…Compactness along with gain enhancement can be achieved in aperture-coupled antennas by using fractal slot and defective ground plane [4], stacked patch [5][6][7], substrate integrated waveguide [8,9], by using superstrate [10,11], and by various other technologies [12][13][14][15][16][17][18][19]. All the above works of literature have used a single or dual rectangular slot, H-shaped slot, I-shaped slot, and cross-shaped slot.…”

Multiband polarisation insensitive metamaterial absorber based on circular fractal structure

“…Ever since the term fractal was coined by Mandelbrot [17] for a class of seemingly irregular geometries, these have found diverse applications in several fields of science and engineering. The primary motivation for the use of fractal geometries in microwave engineering is to extend multiband design and synthesis concepts beyond Euclidean geometry [18][19][20][21]. In addition, the space-filling property of the fractal geometry makes it possible to reduce the size of the unit cell, and makes the MMA work more efficiently in a restrictive area.…”