Study of an Electrochemically-Deposited 3-D Random Fractal Tree-Monopole Antenna

Rmili, Hatem; Mrabet, Otman El; Floc'H, Jean Marie; Miane, J. L.

doi:10.1109/tap.2007.893392

Cited by 33 publications

(26 citation statements)

References 18 publications

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“…However, the same cannot be said about random type of fractal geometries [6], which do not lend themselves to a convenient mathematical description. A few studies [6][7][8][9] have recently been devoted to nature-inspired fractal antennas, whose properties have been compared to those of the conventional type of fractal antennas. In [9], a fluid-jet photo was used to design an irregular fractal-type of the printed antenna, which was shown to have a multiband behavior with radiation properties that are highly influenced by the irregular nature of the patch contour.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, the measured radiation patterns were found to exhibit some suck-outs (dips) and irregularities, which may be attributed to the excitation of high-order modes. In [6][7][8], fractal-metallic deposits obtained by electrochemical deposition were also used to investigate 2D and 3D random-fractal antennas. Again, it was found that the fractal geometry has a high impact on the antenna performance.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of a Random-Fractal Antenna Based on a Natural Tree-Leaf Geometry

Rmili

Oueslati

Trad

et al. 2017

International Journal of Antennas and Propagation

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In this paper, we investigate a new printed antenna based on the 2D image of a fractal tree-leaf geometry by studying the effect of the irregular boundary of the proposed antenna on its radiation characteristics. Both the impedance matching properties and the radiation patterns of the antenna are studied over the frequency band 1-6 GHz. Four configurations are designed by increasing the complexity of the structure, which ranges from iteration 0 to iteration 3. The fractal properties of the proposed tree-leaf antenna are then compared to those of a conventional fractal antenna with smooth edges. Following this, the proposed antennas are fabricated and characterized experimentally. Finally, results are analyzed and discussed, and a practical application for this new type of antennas is proposed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of a Random-Fractal Antenna Based on a Natural Tree-Leaf Geometry

Rmili

Oueslati

Trad

et al. 2017

International Journal of Antennas and Propagation

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“…Itis possible to achieve desired spacing between log periodicbands as given in [8]. The fractal antenna is a set of independent radiating dipoles which distributed in space [9]. This paper gives contribution about multiband antenna with increased size, low cost and omnidirectional radiation pattern with less side lobe level.…”

Section: Introductionmentioning

confidence: 99%

A Three Dimensional Symmetrical Fractal Tree Antenna Using Chemical Deposition Technique

Khobragade

Nalbalwar

Nandgaonkar

2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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Abstract.A three dimensional symmetrical fractal tree antenna using chemical deposition technique is presented. The fractal antennas are used to enhance antenna properties due to their self -similarity behavior. The tree design Microstrip antenna provides miniaturization and multiband operation. The chemical deposition is one of the most interesting technique. Experimental result on the return loss over the band of 1 to 11 GHz and radiation pattern were presented. Chemical deposition technique clearly indicate the shifting of all frequency bands from high frequencies to low frequencies. For all the resonant frequencies VSWR is less than two.

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“…These are composed of multiple iterations of a single elementary shape and are used to describe a family of complex shapes that possess an inherent self-similarity and self-affinity in their geometrical structure. Various researchers [2][3][4][5][6][7][8] have proposed fractal antennas of different shapes such as Sierpinski fractal antenna [2][3][4], tree-shaped fractal antenna [5][6], and some other types including snowflake fractal antenna [7] and Koch fractal antenna [8]. Though these antennas reduce the size and cost, but in case of communication system many applications are used that works at different frequency band hence a single fractal antenna cannot be used to serve the purpose of the whole communication system.…”

Section: Introductionmentioning

confidence: 99%