This paper presents the design & analysis of a planar multiband antenna (Iterated Pythagorean fractal tree antenna) with impedance steps in base path. Impedance steps are adopted with finite ground plane for better impedance matching, multiband & bandwidth characteristics as compare to non-iterated form. As tree iteration increases new resonance frequency will obtained, Iterated Pythagorean fra...

As today’s communication devices are becoming smaller in size, they need antennas also of small size which are capable of providing higher performance. Modern telecommunication systems need antennas with wider bandwidth, multiband support, low cost and conventionally smaller design dimensions for commercial as well as military applications. This ever increasing demand of small, multiband antenn...

With the advancement of wireless communication systems there is a need of low profile and compact communication gadgets. Recent efforts by antenna designers around the world have led to innovative antenna designs which are compact with efficient radiation characteristics. In this paper a sierpinski carpet fractal shape antenna for RFID is presented. Fractal antennas have a promising future in m...

A novel fractal called Fractal Clover Leaf (FCL) is introduced and shown to have well miniaturization capabilities. The proposed patches are fed by L-shape probe to achieve wide bandwidth operation in PCS band. A numerical parametric study on the proposed antenna is presented. It is found that the antenna can attain more than 72% size reduction as well as 17% impedance bandwidth (VSWR<2), in co...

Abstract—This paper presents a novel fractal antenna structure proposed for UWB (Ultra – Wideband) applications. The frequency band 3.1-10.6GHz released by FCC (Federal Communication Commission) as the commercial operation of UWB has been chosen as frequency range for this antenna based on coplanar waveguide (CPW) feed and circular shapes fulfilled according to fractal geometry. The proposed an...

This article presents the design and realization of compact, geometrically simple, wideband high gain antenna for V-band communication systems. The is designed by using a conventional circular patch, which further modified another fractal patch. Furthermore, addition three elliptical shaped patches significantly increases bandwidth antenna. Afterwards, slot etched from radiator to improve radia...

The design of a novel Fractal planar inverted F antenna (F-PIFA) based on the self affinity property is presented in this paper. The procedure for designing a Fractal Planar Inverted F Antenna is explained and three different iterations are designed for use in cellular phones. The F-PIFA has a total dimension of 27mm× 27mm and has been optimized to be operational at GSM (Global System for Mobil...

A d-space X = (X, %, μ) is a compact set X with respect to a quasi-metric % and a Borel measure μ such that the measure of a ball of radius r is equivalent to r, where d > 0. The paper deals with spaces B p(X;H) of Besov type where 1 < p < ∞ and s ∈ R. Here H is a bi-Lipschitzian map of the snowflaked version (X, %, μ) of X for some 0 < ε < 1, onto a fractal d/ε-set Γ = HX in some R, reducing t...

A new set of fractal multiband antennas called mod Sierpinski gaskets is presented.Mod Sierpinski fractal antennas derive from the Pascal triangle and present a log-periodic behavior, which is a consequence of their self-similarity properties.Mod Sierpinski fractal antennas constitute a generalization of the classical Sierpinski antenna.