RF noise suppressor using FeCoNiB soft magnetic thin films on the microstrip line

Compositional dependence of magnetic and high frequency properties of nanogranular CoFe-Yttrium-doped Zirconia films

“…B. M. Farid Rahman et al [11] have researched the stop band frequency of the noise suppressor depending on the aspect ratios of magnetic layers and external direct current. Qiu et al [12] adjusted the intensity and frequency of RF transmission signal attenuation by changing the geometric dimension of the dielectric layer. According to previous works, microwave properties can be significantly affected by the magnetic anisotropy (H k ) [13,14], and saturation magnetization (M s ), static permeability m s ¼ 1 þ 4pM s /H k , and resonance frequency f r ¼ c/ 2p(4pM s H k ) 1/2 , where c is the gyromagnetic factor.…”

Structural, electron transportation and magnetic behavior transition of metastable FeAlO granular films

“…Integration of magnetic components, such as inductors, noise suppressors and microwave absorbers on a single chip is critical for the miniaturization of electromagnetic devices and high-speed data transmission 1 2 3 4 5 6 . Soft magnetic granular films consisting of ferromagnetic metals dispersed in dielectric matrix serve as the potential material for the on-chip electromagnetic applications due to their high electrical resistivity ( ρ ) and large saturation magnetization ( M s ) compared with traditional ferrites 7 8 9 10 .…”