RF noise suppression using carbon-coated permalloy nanorod arrays

Author

Kim, Ki Hyeon ; Orikasa, Hiromori ; Kyotani, Takashi ; Yamaguchi, Masahiro

Author_Institution

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

Volume

41

Issue

10

fYear

2005

Firstpage

4075

Lastpage

4077

Abstract

We evaluated the noise suppression effects of carbon coated permalloy nanorod arrays in porous anodic aluminum oxide on coplanar waveguide. The average diameter and length of the Permalloy nanorods was ∼500 nm and ∼10 nm, respectively. The power loss of the Permalloy nanorods was 85% at 20 GHz (in stop-band frequency) which was higher than that of 0.5-μm-thick NiZn-ferrite film (68%). In the pass band frequency region at around 1 GHz, the signal attenuation of the Permalloy nanorod arrays was lower than that of the NiZn-ferrite film.

Keywords

Permalloy; carbon nanotubes; coplanar waveguides; ferrites; interference suppression; 0.5 micron; 10 nm; 20 GHz; 500 nm; RF noise suppression; carbon nanotube; carbon-coated permalloy; coplanar waveguide; nanorod arrays; power loss; Aluminum oxide; Coplanar waveguides; Eddy currents; Electromagnetic compatibility and interference; Electromagnetic interference; Magnetic noise; Magnetic separation; RF signals; Radio frequency; Scanning electron microscopy; Carbon nanotube; coplanar wave guide; nano rod; noise suppression;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.854862

Filename

1519540