Title :
Near-Zero Refractive Index structures to simplify the feeding of antenna arrays
Author :
Iñigo-Villacorta, Fernando ; Segovia-Vargas, Daniel
Author_Institution :
Univ. Carlos III de Madrid, Leganes
Abstract :
The dispersion diagrams of certain metamaterial structures exhibit a near-zero phase propagation constant beta within a restricted range of frequencies (therefore behaving as a near-zero refractive index material). This special characteristic is exploited to synthesize uniformly illuminated arrays. Design theory is elaborated and simulated results are presented, showing a satisfactory performance for the designed array.
Keywords :
antenna arrays; antenna feeds; metamaterials; refractive index; antenna array feeding; array design; dispersion diagrams; metamaterial; near-zero refractive index structures; phase propagation constant; Antenna arrays; Antenna feeds; Apertures; Bandwidth; Metamaterials; Phased arrays; Refractive index; Resonance; Resonant frequency; Transmission line theory;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584721
