Abstract
This paper described the application of an Fe-based nanocrystalline ribbons to a noise filter in the 1 MHz ∼ 1 GHz frequency range. A 10-μm-thick Fe76.2Cu1.0Nb2.0Si14.9B5.9 amorphous ribbon was converted into an Fe-based nanocrystalline ribbon by annealing at 500°C∼ 600°C for 10 min. This ribbon exhibited high permeability and high impedance characteristics. It was confirmed that an Fe-based nanocrystalline ribbon noise filter with a 1/18th that of a conventional filter (ferrite core) exhibited the same noise attenuation.
