Electromagnetic Noise Suppression Characteristics of FeCoBM-Al₂O₃ Amorphous Soft Magnetic Films

Abstract:

The electromagnetic noise suppression characteristics of a series of FeCoBM -Al2O3 amorphous soft magnetic films were reported in the frequency range from 0.5GHz to 6 GHz. Effect of dopants on the reflection coefficient (S11), transmission coefficient (S21) and power loss (PLOSS/PIN) of as-deposited FeCoBM(M=Nb, Zr, Hf, Ta, Mo, Ti)-Al2O3 films were studied. The (Fe40Co40B20)89Mo8–(Al2O3)3 film had the highest power loss with the value of 0.85 at 6GHz. The transmission properties of the FeCoBNi-Al2O3 also studied in the paper. The power loss of the (Fe40Co40B20)68.36Ni28.64–(Al2O3)3 film was more than 0.6 from 3.0-6.0GHz, which had the best electromagnetic noise suppression characteristics. These results show that the presented films possesses potential in noise suppressor applied in electronic devices .

• Periodical: Advanced Materials Research (Volume 668)
• Pages: 737-740
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.668.737
• Online since: March 2013
• Authors: Xuan Xiong, Ze Kun Feng, Xian Wang, Li Gong Li
• Keywords: Co-Sputtering Film, Electromagnetic Noise Suppression Characteristics, Microstrip Line, Soft Magnetic Properties

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