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Title: Microwave frequency characteristics of magnetically functionalized carbon nanotube arrays
Authors: Bogush, Vadim A.
Prudnikava, Alena L.
Shulitski, Boris G.
Komissarov, Ivan V.
Labunov, Vladimir A.
Basaev, Alexander S.
Tay, Beng Kang
Shakerzadeh, Maziar
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
Issue Date: 2012
Source: Labunov, V. A., Bogush, V. A., Prudnikava, A. L., Shulitski, B. G., Komissarov, I. V., Basaev, A. S., Tay, B. K., & Shakerzadeh, M. (2012). Microwave frequency characteristics of magnetically functionalized carbon nanotube arrays. IEEE transactions on electromagnetic compatibility, 54(1), 70-80.
Series/Report no.: IEEE transactions on electromagnetic compatibility
Abstract: This paper reports the results of a comprehensive study of the interaction of electromagnetic radiation (EMR) of the wide frequency range (8-12, 26-37, and 78-118 GHz) with arrays of vertically aligned and disordered carbon nanotubes (CNTs) which have been obtained by the floating catalyst chemical vapor deposition method. The obtained nanotubes represent a composite of multiwall CNTs with encapsulated magnetic nanoparticles of iron phases, i.e., magnetically functionalized nanotubes (MFCNTs). MFCNTs were formed on silicon substrates, and disordered arrays in the form of powder were obtained by separating the MFCNT arrays mechanically from the walls of the quartz reactor. The frequency dependences of the reflection and transmission coefficients of EMR of MFCNTs of two types were investigated. The high electromagnetic shielding efficiency (40 dB) of MFCNTs associated with the reflection of electromagnetic waves was detected. Possible mechanisms of attenuation of electromagnetic signals by aligned and disordered MFCNTs were discussed.
DOI: 10.1109/TEMC.2012.2182772
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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