Abstract
Electromagnetic noise suppressors on Cu transmission lines and oxidized Si substrate integrated with a Si O2 dielectric and a Co-Fe-Al-O magnetic layer are presented. Extremely large signal attenuation is achieved (-90 dB at 20 GHz) while the signal reflection is relatively small, being below -10 dB. These characteristics are attributed to the distributed capacitance (C) formed by the Cu and the oxidized Si substrate and the CuSi O2 Co-Fe-Al-O and the distributed inductance (L) due to the magnetic thin film. The main loss mechanism is the L-C resonance and this emphasizes the role of the magnetic thin film providing the inductance.
Original language | English |
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Article number | 143520 |
Journal | Applied Physics Letters |
Volume | 90 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2007 |
Bibliographical note
Funding Information:This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Laboratory program funded by the Korean Ministry of Science and Technology (Project No. M10600000198-06J0000-19810).
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)