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US 11,776,718 B2Granted
Increased resonant frequency potassium-doped hexagonal ferrite
AssigneeSkyworks Solutions, Inc.
InventorMichael David Hill
Life of this patent
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Abstract
Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material and methods of manufacturing. The hexagonal ferrite material can be Y-phase strontium hexagonal ferrite material. In some embodiments, strontium can be substituted out for a trivalent or tetravalent ion composition including potassium, thereby providing for advantageous properties.
Claims21
A doped Y-phase hexagonal ferrite material, comprising:
- a doped Y-phase hexagonal ferrite material including potassium substituted for at least some strontium and including a trivalent ion substituted for at least some cobalt, the doped Y-phase hexagonal ferrite material having a composition Sr2−xKxCo2−xMxFe12O22, M being the trivalent ion and the value of x being 0.2<x<0.7.
A radio frequency antenna, comprising:
- a doped Y-phase hexagonal ferrite material including potassium substituted for at least some strontium and including a trivalent ion substituted for at least some cobalt, the doped Y-phase hexagonal ferrite material having a composition Sr2−xKxCo2−xMxFe12O22, being the trivalent ion and the value of x being 0<x≤1.5.
A doped Y-phase hexagonal ferrite material, comprising:
- a doped Y-phase hexagonal ferrite material including potassium substituted for at a doped Y-phase hexagonal ferrite material including potassium substituted for at least some strontium and including a tetravalent ion substituted for at least some cobalt, the doped Y-phase hexagonal ferrite material having a composition Sr2−2xK2xCo2−xNxFe12O22, N being the tetravalent ion and the value of x being 0.2<x<0.5.
A radio frequency antenna, comprising:
- a doped Y-phase hexagonal ferrite material including potassium substituted for at least some strontium and including a tetravalent ion substituted for at least some cobalt, the doped Y-phase hexagonal ferrite material having a composition Sr2−2xK2xCo2−xNxFe12O22, N being the tetravalent ion and the value of x being 0<x≤0.75.
Dependencies are inferred from the claim text.