TY - JOUR
T1 - Effects of the magnetic layer length on the high-frequency characteristics of an integrated-type coplanar wave-guide transmission line
AU - Sohn, Jaecheon
AU - Han, S. H.
AU - Yamaguchi, M.
AU - Lim, S. H.
N1 - Funding Information:
This work was supported by the Korean Ministry of Science and Technology through the National Research Laboratory program and the Korea–Italy program.
PY - 2007/3
Y1 - 2007/3
N2 - Integrated-type electromagnetic noise suppressors, based on a coplanar wave-guide transmission line, are investigated, incorporated with a SiO2 dielectric and a nanogranular Co-Fe-Al-O magnetic thin film. The length of the magnetic thin film is varied from 2 to 15 mm, while its thickness and width are fixed at 1 and 50 μm, respectively. In the measurement frequency range of 0.1-20 GHz, no obvious resonance is seen at the shortest length of the magnetic thin film, but resonance behavior occurs at larger length. A very clear resonance occurs at the largest length of 15 mm, where the resonance frequency is ∼10 GHz and the signal attenuation is as large as -20 dB. The observed resonance frequency is much higher than the ferromagnetic resonance frequency and the main mechanism of loss generation is found to be L-C resonance.
AB - Integrated-type electromagnetic noise suppressors, based on a coplanar wave-guide transmission line, are investigated, incorporated with a SiO2 dielectric and a nanogranular Co-Fe-Al-O magnetic thin film. The length of the magnetic thin film is varied from 2 to 15 mm, while its thickness and width are fixed at 1 and 50 μm, respectively. In the measurement frequency range of 0.1-20 GHz, no obvious resonance is seen at the shortest length of the magnetic thin film, but resonance behavior occurs at larger length. A very clear resonance occurs at the largest length of 15 mm, where the resonance frequency is ∼10 GHz and the signal attenuation is as large as -20 dB. The observed resonance frequency is much higher than the ferromagnetic resonance frequency and the main mechanism of loss generation is found to be L-C resonance.
KW - Coplanar waveguide transmission line
KW - Electromagnetic noise suppressor
KW - Integrated device
KW - Magnetic thin film
UR - http://www.scopus.com/inward/record.url?scp=33847680884&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2006.10.870
DO - 10.1016/j.jmmm.2006.10.870
M3 - Article
AN - SCOPUS:33847680884
SN - 0304-8853
VL - 310
SP - 2563
EP - 2565
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 2 SUPPL. PART 3
ER -