منابع مشابه
Multiband Fractal-like Antennas
Abstract—In this paper, new multiband fractal-like antennas are proposed. The proposed multiband antenna design is based on a methodology that utilizes the self transformation principle of fractallike rectangular profiles to generate multiband operation. The proposed monopole-type antennas are built on a partial ground plane and fed through a microstrip feed line. The analytical design procedur...
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In this paper we present two novel multiband antenna designs for multiple frequency applications. The first of these, which is based on fractal concepts, is a Sierpinski gasket type of fractal configuration, printed on a dielectric substrate backed by a ground plane. We propose a novel approach to enhancing its multiband performance, in terms of impedance matching characteristics as well as rad...
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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.
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The entropies of Shannon, Rényi and Kolmogorov are analyzed and compared together with their main properties. The entropy of some particular antennas with a pre-fractal shape, also called fractal antennas, is studied. In particular, their entropy is linked with the fractal geometrical shape and the physical performance.
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Antennas for hand-held communication devices are necessarily small, and typically use wavelengths λ that are large compared to the size of the antenna. This typically implies that the magnitude of the antenna reactance X (= imaginary part of the antenna impedance) is large compared to that of its radiation resistance Rrad (which is related to the time-average radiated power P and the peak curre...
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ژورنال
عنوان ژورنال: Progress In Electromagnetics Research B
سال: 2011
ISSN: 1937-6472
DOI: 10.2528/pierb11030904