Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854862
