Crown-Sierpinski microstrip antenna: further reduction of the size of a Crown Square Fractal

In this paper, the first resonant frequencies of Crown square and Crown-Sierpinski antennas are compared with the well known nearly square and Sierpinski carpet antennas. It has been shown that the two presented antennas have lower first resonant frequencies that causes a noticeable reduction in the size of the antennas. In exchange of size minimizing, the axial ratio of the Crown square and Crown-Sierpinski micro strip antennas is degraded