CUED Publications database

Microwave characterization of multi-walled carbon nanotube arrays

Katsounaros, A and Rajab, KZ and Hao, Y and Mann, M and Milne, WI (2011) Microwave characterization of multi-walled carbon nanotube arrays. European Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 41st European Microwave Conference, EuMC 2011. pp. 53-56.

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Abstract

A vertically aligned multi-walled carbon nanotube (VACNT) film has been characterized by rectangular waveguide measurements. The complex scattering parameters (S-parameters) are measured by a vector network analyzer at X-band frequencies. The effective complex permittivity and permeability of the VACNT film have been extracted using the Nicolson-Ross-Weir (NWR) approach. The extracted parameters are verified by full wave simulations (CST Microwave Studio) and very good agreement has been obtained. A systematic error analysis is presented and the errors are within the acceptable range. The performance of VACNT films as an absorber is examined, and comparison with the conventional carbon loaded materials shows that a 90% size reduction is possible whilst maintaining the same absorption level. © 2011 EUROPEAN MICROWAVE ASSOC.

Item Type: Article
Uncontrolled Keywords: absorption permeability permittivity vertically aligned multiwalled carbon nanotubes (VACNT) waveguide
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:00
Last Modified: 28 Nov 2014 19:05
DOI: