Radio frequency applications of carbon nanotube coated Permalloy nanorod array

Author

Kim, Ki Hyeon ; Fukushima, Tadahiro ; Yamaguchi, Masahiro ; Orikasa, Hironori ; Kyotani, Takashi

Author_Institution

Dept. of Electr. & Commun. Eng., Tohoku Univ., Japan

Volume

2

fYear

2005

fDate

4-7 Dec. 2005

Abstract

The RF characteristics of carbon nanotube coated Permalloy nanorod array in porous anodic aluminum oxide were evaluated using coplanar waveguide. The average diameter and length of the Permalloy nanorods was ∼ 10 nm and ∼ 500 nm, respectively. The signal attenuation of the Permalloy nanorod array was 22.4 dB/cm at 20 GHz (stop-band frequency), which was higher than that of 0.5 μm-thick NiZn-ferrite film (15.5 dB/cm). In the pass band frequency region at around 1 GHz, the magnitude of signal attenuation of the Permalloy nanorods array exhibited about 0.5 dB/cm. It is lower than that of the NiZn-ferrite film of 1.2 dB/cm. The propagation wavelength shortening was obtained by NiZn ferrite (60 %) and carbon coated Permalloy nanorod (46.2 %) at 1 GHz.

Keywords

Permalloy; anodisation; carbon nanotubes; coplanar waveguides; microwave materials; nanostructured materials; nickel alloys; porous materials; zinc alloys; 0.5 micron; 20 GHz; NiZn; NiZn-ferrite film; carbon nanotube coated Permalloy nanorod array; coplanar waveguide; pass band frequency; porous anodic aluminum oxide; propagation wavelength shortening; signal attenuation magnitude; stop-band frequency; Aluminum oxide; Attenuation; Carbon nanotubes; Coplanar waveguides; Ferrite films; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

Print_ISBN

0-7803-9433-X

Type

conf

DOI

10.1109/APMC.2005.1606544

Filename

1606544