Title :
Directivity enhancement of line source radiation by hollow cylinder made of left-handed material
Author :
Zhu, Jiang ; Xu, Jie ; Jiang, Ai-min ; Zou, Da-Yong ; Wu, Rui-xin
Author_Institution :
Dept. of Electron. Sci. & Eng., Nanjing Univ., Nanjing
Abstract :
We have investigated radiation of a line source within a hollow cylinder made of lossless left-handed materials (LHMs). We calculate field radiation patterns of the line source and find that the LHMs cylinder functions directivity enhancement of source radiation. The study shows that the position of the source and the thickness of the LHMs greatly affect the directivity, and there is an optimized source position and thickness of LHMs for the best directivity.
Keywords :
electromagnetic waves; metamaterials; directivity enhancement; field radiation pattern; hollow cylinder; left-handed material; line source radiation; Antenna radiation patterns; Antennas and propagation; Crystalline materials; Directive antennas; Electromagnetic propagation; Electromagnetic radiation; Electromagnetic scattering; Engine cylinders; Metamaterials; Photonic crystals;
Conference_Titel :
Antennas and Propagation Conference, 2008. LAPC 2008. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-1893-0
Electronic_ISBN :
978-1-4244-1894-7
DOI :
10.1109/LAPC.2008.4516955
