Multiband Sierpinskl fractal patch antenna

Abstract

The multiband behavior of the Sierpinski patch antenna is described in this paper, and a new technique to improve the multiband behavior from the p i n t of view of the radiation patterns is intrcduced in this paper.Introduction The use of fractal geometries is a new solution to design multiband antennas. The multiband behavior of the Sierpinski monopole has been presented and discussed, such monopole displayed a similar behavior over five bands from both the input return loss and the radiation patterns p i n t of view [l-21. The Sierpinski patch antenna has been analyzed using an Iterative Nehvork Model [ 3 ] and the input impedance presented a log-periodic distribution tof the resonant frequencies with a logperiod that is similar to the scale factor between the triangles. The next logical step is to explore the multiband behavior of the Sierpinski patch antenna from the point of view of the radiation patterns.

Design of conformal multiband antennas based on fractal concepts

“…Among various fractal geometries that have been investigated by a number of groups, one particular geometry, namely, the Sierpinski gasket type of fractal configuration, has been extensively used in realizing multiband antennas because its behavior is comparable to that of solid triangular radiating element and it can be conveniently fed at one of its apexes for multiband operations. Although the Sierpinski gasket geometry has been used to design both the monopole [2] and the patch type of antennas [3][4], only the latter is suitable for conformal applications. However, the Sierpinski patch gasket antenna over a ground plane does not perform as well as the monopole without substantial modifications because of its fixed height above the plane, which does scale with frequency.…”

Effect of Swastika Slot in Square Fractal Antenna

“…Although the fractal structure from these mathematical functions provide attractive multiband performance, it has become necessary to modify such geometry to enhance their applications. Several advances have since been made in these existing geometries, [9], [14] along with which some new geometry have come up, which are suitable for many applications where low profile, light weight, low cost, simple geometry, compatibility with integrated circuit and conformability in mounting on the host body are required. Further researches and efforts are going to advance the antenna features to meet the coming challenges.…”

Dual‐broadband dielectric resonator antenna based on modified Sierpinski fractal geometry

“…Some technologies have been researched to achieve dual-band behaviour on DRAs [2,3]. The Sierpinski gasket is characterised by a multiband property due to its self-similar shapes [4]. Some perturbed or modified Sierpinski are used to avoid the truncation effect [5,6].…”