Analysis of the spectral response of fractal antennas related with its geometry and current paths

Alexander Cuadrado; José M. López-Alonso; Juan C. Martínez-Antón; José M. Ezquerro; Francisco J. González; Javier Alda

doi:10.1117/12.2187946

28 August 2015 Analysis of the spectral response of fractal antennas related with its geometry and current paths

Alexander Cuadrado, José M. López-Alonso, Juan C. Martínez-Antón, José M. Ezquerro, Francisco J. González, Javier Alda

Proceedings Volume 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII; 954736 (2015) https://doi.org/10.1117/12.2187946
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

Fractal antennas have been proposed to improve the bandwidth of resonant structures and optical antennas. Their multiband characteristics are of interest in radiofrequency and microwave technologies. In this contribution we link the geometry of the current paths built-in the fractal antenna with the spectral response. We have seen that the actual currents owing through the structure are not limited to the portion of the fractal that should be geometrically linked with the signal. This fact strongly depends on the design of the fractal and how the different scales are arranged within the antenna. Some ideas involving materials that could actively respond to the incoming radiation could be of help to spectrally select the response of the multiband design.

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Alexander Cuadrado, José M. López-Alonso, Juan C. Martínez-Antón, José M. Ezquerro, Francisco J. González, and Javier Alda "Analysis of the spectral response of fractal antennas related with its geometry and current paths", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 954736 (28 August 2015); https://doi.org/10.1117/12.2187946

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KEYWORDS

Fractal analysis

Antennas

Polarization

Electroluminescent displays

Optical antennas

Transducers

Chemical elements

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