Title :
Performance Prediction of Carbon Nanotube Bundle Dipole Antennas
Author :
Huang, Yi ; Yin, Wen-Yan ; Liu, Qing Huo
Author_Institution :
Center for Microwave & Radio Freq. Technol., Shanghai Jiao Tong Univ., Shanghai
fDate :
5/1/2008 12:00:00 AM
Abstract :
A theoretical investigation is carried out for predicting radiation characteristics of single-walled carbon nanotube (SWCNT) bundle dipole antennas based on the distributed circuit parameters and the model of an SWCNT, where the cross section of bundles can be in a circular and a rectangular geometry, respectively. The current distributions in such novel antennas are predicted to investigate the effects of bundle cross-sectional size, tube diameter, tube length, and operating frequency. Furthermore, comparative studies are performed to show the geometry- and frequency-dependent radiation resistance, far-field pattern, and radiation efficiency of some typical bundle dipole antennas, which are numerically confirmed to outperform an SWCNT antenna by 30-40 dB in radiation efficiency.
Keywords :
carbon nanotubes; current distribution; dipole antennas; nanotube devices; C; bundle cross-sectional size; bundle dipole antennas; current distributions; distributed circuit parameters; far-field pattern; operating frequency; radiation efficiency; radiation resistance; single-walled carbon nanotube; Antenna efficiency; antenna efficiency; current distribution; dipole antennas; far field pattern; far-field pattern; single-walled carbon nanotube (SWCNT) bundle;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2007.915017
