Title :
Characterization of Multiwalled Carbon Nanotube (MWCNT) Composites in a Waveguide of Square Cross Section
Author :
Challa, Ravi K. ; Kajfez, Darko ; Demir, Veysel ; Gladden, Joseph R. ; Elsherbeni, Atef Z.
Author_Institution :
Univ. of Mississippi, Oxford
fDate :
3/1/2008 12:00:00 AM
Abstract :
Multiwalled carbon nanotube (MWCNT) composites are characterized within 8-10 GHz using a waveguide of square cross section. The complex permittivity is extracted and empirical expressions are obtained as a function of frequency by minimizing the difference between the measured and theoretical values of the scattering parameters. Composites with CNT concentrations ranging from 0%-20% are investigated. The square cross section of the waveguide allows for different orientations of samples to test the anisotropy of MWCNT composites.
Keywords :
carbon nanotubes; nanocomposites; nanotube devices; waveguides; MWCNT; frequency 8 GHz to 10 GHz; multiwalled carbon nanotube composites; waveguide square cross section; Carbon nano-tube (CNT) composites; dielectric measurements; scattering parameters; waveguides;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.916776
