Title :
Coordinate-transformation-based ultra-directive emission
Author :
Tichit, Paul-Henri ; Burokur, Shah Nawaz ; Germain, Dylan ; de Lustrac, Andre
Author_Institution :
IEF, Univ. Paris-Sud, Orsay, France
Abstract :
The modelling, practical implementation and characterisation of an ultra-directive antenna around 10 GHz are presented. The design of the antenna is based on the transformation optics concept by transforming a radiating cylindrical space into a rectangular one. Metamaterials presenting electric and magnetic resonances are used to achieve the transformation. Field intensity mappings and direct far-field measurements are performed to experimentally demonstrate the narrow beam profile.
Keywords :
directive antennas; metamaterials; microstrip antennas; coordinate transformation; direct far-field measurements; electric resonances; field intensity mappings; magnetic resonances; metamaterials; microstrip antennas; narrow beam profile; radiating cylindrical space; radiating rectangular space; transformation optics; ultra-directive antenna; ultra-directive emission;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0463
