Publication:
Resultados experimentales de la mejora de potencia radiada por un dipolo mediante un superstrato left-handed

Date

2006

Director

Publisher

Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena

Project identifier

Abstract

In this paper a comparison between the measured radiation performances of a single dipole and a dipole with a left handed superstrate based on a finite periodic repetition of a unit cell is presented. First of all the return losses and resonant frequency of the dipole has been measured for different sizes of the superstrate, having a good impedance matching and a decrease in the resonant frequency as the number of cells increase. By using an anechoic chamber and a receiver horn antenna, the power transmitted at boresight has been measured for different frequencies, observing a filtering behaviour due to the resonant characteristic of the superstrate and an improvement of the power transmitted at the resonant frequency of around 3.5 dB. Comparing the H and E plane radiation patterns of a dipole and the dipole with superstrate, more symmetrical and directive radiation patterns can be observed. Finally, a comparison between the simulated and measured aperture efficiency is presented with a good agreement between them.

Description

Trabajo presentado al XXI Symposium de la Unión Científica Internacional de Radio (URSI’06). Oviedo, 2006.

Keywords

Dipoles, Left-handed superstrate

Department

Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa eta Elektronikoa

Faculty/School

Degree

Doctorate program

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