Title :
Applications of Negative-Refractive-Index Transmission-Line (NRI-TL) Metamaterials in Planar Antennas and their Feed Networks
Author :
Antoniades, Marco ; Eleftheriades, George
Author_Institution :
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON
Abstract :
Negative-refractive-index transmission-line (NRI-TL) metamaterials and introduced and their fundamental properties are described. Following this, various applications using NRI-TLs are shown and their salient characteristics are shown. First, a broadband microstrip balun is shown, then a broadband 1:4 power divider, followed by a series-fed linear dipole array that exhibits reduced beam squinting, then a leaky-wave antenna with reduced beam squinting is presented and finally an electrically small ring antenna is shown that exhibits vertical linear polarization.
Keywords :
antenna feeds; baluns; dipole antenna arrays; electromagnetic wave polarisation; leaky wave antennas; linear antenna arrays; microstrip lines; planar antenna arrays; refractive index; beam squinting; broadband microstrip balun; electrically small ring antenna; feed networks; leaky-wave antenna; negative-refractive-index applications; planar antennas; series-fed linear dipole array; transmission-line metamaterials; vertical linear polarization; Metamaterials; Negative-Refractive-Index; electrically small antennas; feed networks; phase-shifters;
Conference_Titel :
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Conference_Location :
Edinburgh
Print_ISBN :
978-0-86341-842-6
