Title :
Directive electromagnetic scattering by an infinite conducting cylinder coated with left-handed material
Author :
Sun, Jun ; Jiang, Tian ; Sun, Wei ; Feng, Yijun
Author_Institution :
Dept. of Electron. Sci. & Eng., Nanjing Univ., China
Abstract :
In this paper, electromagnetic scattering by an infinite conducting cylinder coated with left-handed material (LHM) for an incident wave of a line source is derived rigorously by using a boundary value mode-matching approach. The numerical calculations demonstrate the improved directivity of the electromagnetic scattering by such a cylindrical structure, due to the negative refraction phenomenon of the LHM. The far-field radiation pattern and its frequency dependence exhibit the possible application of the LHM in a directive antenna.
Keywords :
antenna radiation patterns; boundary-value problems; conducting bodies; directive antennas; electromagnetic wave refraction; electromagnetic wave scattering; metamaterials; mode matching; boundary value mode-matching; cylindrical structure; directive antenna; directive electromagnetic scattering; directivity; far-field radiation pattern; frequency dependence; infinite conducting cylinder; left-handed material; negative refraction phenomenon; Dielectrics; Electromagnetic propagation; Electromagnetic scattering; Engine cylinders; Frequency; Geometry; Metamaterials; Optical resonators; Optical scattering; Sun;
Conference_Titel :
Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on
Print_ISBN :
0-7803-8842-9
DOI :
10.1109/IWAT.2005.1461010
