Title :
Investigation of Multiwall Carbon Nanotubes as Antennas in the Subterahertz Range
Author :
AlAjmi, Ayed R. ; Mahmoud, Samir F.
Author_Institution :
Coll. of Technol. Studies, Public Authority for Appl. Educ. & Training, Shuweikh, Kuwait
Abstract :
In this paper, we investigate the performance of a multiwall Carbon Nanotube (MWCNT) as an antenna in the subterahertz range. To this end, a circuit model for the transverse structure is proposed and derived for the MWCNT, which is valid as long as the applied wavelength is much longer than the diameter of the MWCNT. Using this model, the modal equation of the axial propagation constant is derived, and the antenna radiation characteristics are obtained. In addition we study a bundle of MWCNT´s as an antenna with higher radiation efficiency. Numerical examples show that the radiation resistance of a λ/2 antenna can be comparable to normal metallic antenna.
Keywords :
antennas; carbon nanotubes; nanotube devices; numerical analysis; terahertz wave devices; C; antenna radiation characteristics; axial propagation constant; circuit model; modal equation; multiwall carbon nanotubes; numerical analysis; subterahertz range; transverse structure; Carbon nanotubes; Conductivity; Dipole antennas; Mathematical model; Resistance; Antenna; multiwall carbon nanotubes; terahertz antenna;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2014.2299399
