Increased resonant frequency alkali-doped y-phase hexagonal ferrites
AssigneeSkyworks Solutions, Inc.
InventorMichael David Hill
Life of this patent
Estimating the term…
Abstract
Disclosed herein are embodiments of an enhanced resonant frequency hexagonal ferrite material, such as Y-phase hexagonal ferrite material, and methods of manufacturing. In some embodiments, sodium or potassium can be added into the crystal structure of the hexagonal ferrite material in order to achieve improved resonant frequencies in the range of 500 MHz to 1 GHz useful for radiofrequency applications.
Claims21
(canceled)
A method for increasing the resonant frequency of a hexagonal ferrite material, the method comprising:
- doping a Y phase hexagonal ferrite material including strontium, cobalt, iron, and oxygen with a univalent alkali metal on a strontium site;
- and
- charge compensating on a cobalt site of the hexagonal ferrite material.
A hexagonal ferrite material having enhanced resonant frequency comprising:
- a Y phase hexagonal ferrite material including strontium, cobalt, iron, and oxygen, the hexagonal ferrite material being doped with a univalent alkali metal on a strontium site, and the hexagonal ferrite material charge compensated with scandium or indium.
A radiofrequency device comprising:
- a Y phase hexagonal ferrite material including strontium, cobalt, iron, and oxygen, the hexagonal ferrite material being doped with a univalent alkali metal on a strontium site and doped for charge compensation on a cobalt site.
Dependencies are inferred from the claim text.