Co/Ti-substituted M-type hexagonal ferrites for high-frequency multilayer inductors

Crystal structure and magnetic properties of the BaFe12−Al O19 (x=0.1–1.2) solid solutions

“…Such technology is well known as "Stealth" technology. Recently was reported that Co/Ti-substituted hexagonal M-type ferrite is an excellent material for the high-frequency multilayer inductors [10].…”

Permeability and permittivity spectra of substituted barium Ferrites BaFe12−x(Ti0.5Co0.5)xO19(x=0 to 5)

“…At x¼ 4, the r μ ‵ decreases again and BaFe 7 (Ti 0.5 Co 0.5 ) 5 O 19 (x¼5) shows low permeability about unity indicating the paramagnetic or uncompensated antiferromagnetic state. Recently, S. Bierlich et al reported the similar permeability dispersion in the low temperature sintered substituted Ba ferrites in the composition range from x ¼2.0 to 2.8 [18]. They showed that the x ¼2.8 composition sample has the highest permeability about 18 at 1 MHz.…”

“…Recently, it has been reported that this relatively high magnetic permeability of this compound can be used for the high frequency multilayer inductor [18]. From the complex permeability measurements of BaFe 12 O 19 powders, there is no frequency dispersion in the X to Ku band and the μ r ' value is almost unity [19].…”

Crystal structure and magnetic properties of the BaFe12−In O19 (x=0.1–1.2) solid solutions

“…Such technology is well known as "Stealth" technology. Recently was reported that Co/Ti-substituted hexagonal M-type ferrite is an excellent material for the high-frequency multilayer inductors [12].…”