The properties of the Koch island fractal boundary microstrip patch antenna are presented. The behavior at the fundamental mode and the existence of high-order modes that exhibit localized current density distributions is discussed. The main features are the size reduction of the patch resonating at the fundamental frequency when compared to Euclidean-shaped patches, and the application of loca...

introduction: soil hydraulic conductivity is considered as one of the most important hydraulic properties in water and solutionmovement in porous media. in recent years, variousmodels as pedo-transfer functions, fractal models and scaling technique are used to estimate the soil saturated hydraulic conductivity (ks). fractal models with two subset of two (solid and pore) and three phases (solid,...

Methods are presented for characterizing the self-affinity and lacunarity of arbitrarily shaped images. Chromatin appearance in breast epithelial cell nuclei is shown to be statistically self-affine. Spectral and Minkowski dimensions are lesser in nuclei of malignant cases than in nuclei of benign cases, and lacunarity further quantifies morphologic differences such as chromatin clumping and nu...

The hasty growth of wireless technologies has drawn new demands for integrated components including antennas and antenna on chip is a new mantra in the area of antenna research. Various techniques have been suggested by researchers for the miniaturization of microstrip patch antennas with multiband characteristics. Numerous antennas for multiband operation have been studied and designed for com...

This paper presents the four iterative circular shaped fractal antenna and its backscattering RCS with respect to iteration. First, the solid circular patch antenna has been designed on substrate εr = 2.2, h=0.787 mm with a = 40.766 mm and aspect ratio b/a = 0.98. The antenna has been simulated using FDTD method. The resonant frequency of this antenna has been observed at 1.42 GHz. The four ite...

Fractal patterns are observed in computational mechanics of elastic-plastic transitions in two models of linear elastic/perfectly plastic random heterogeneous materials: (1) a composite made of locally isotropic grains with weak random fluctuations in elastic moduli and/or yield limits and (2) a polycrystal made of randomly oriented anisotropic grains. In each case, the spatial assignment of ma...

This paper introduces a new tri-wideband fractal antenna for use in wireless communication applications. The manufactured developed has Sierpinski hexagonal-shaped radiating element and partial ground plane loaded with three rectangular stubs slits. investigated small footprint of 0.19λ0 × 0.24 λ0 0.0128 improved bandwidth gain. According to the measurements, designed resonates throughout frequ...