Title :
Multi-band cylindrical antenna using ε-near-zero gap launchers
Author :
Alù, Andrea ; Chen, Pai-Yen ; Engheta, Nader ; Maci, Stefano
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
The ε-near-zero (ENZ) tunneling phenomenon has been shown to allow full transmission of waves through narrow channels, even in the presence of a strong geometric mismatch. Here we propose an application of this principle to realistic 3D cylindrical antenna geometries, with the purpose of realizing a frequency-hopping multi-band radiator working in a 5:1 bandwidth in the millimetre-wave regime, of interest for a variety of real-life antenna applications.
Keywords :
Antenna feeds; Bandwidth; Dielectrics; Engine cylinders; Frequency; Geometry; Permittivity; Rectangular waveguides; Tunneling; Waveguide discontinuities;
Conference_Titel :
Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on
Conference_Location :
Barcelona, Spain
Print_ISBN :
978-1-4244-6431-9
Electronic_ISBN :
978-84-7653-472-4
