Ultra-high dielectric constant garnet
AssigneeSkyworks Solutions, Inc.
InventorsDavid Bowie Cruickshank, Michael David Hill
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Abstract
Disclosed are embodiments of synthetic garnet materials for use in radiofrequency applications. In some embodiments, increased amounts of bismuth can be added into specific sites in the crystal structure of the synthetic garnet in order to boost certain properties, such as the dielectric constant and magnetization. Accordingly, embodiments of the disclosed materials can be used in high frequency applications, such as in base station antennas.
Claims20
An ultra-high dielectric constant garnet comprising:
- an yttrium iron garnet crystal structure with at least some yttrium being substituted out for bismuth, at least some yttrium being substituted by gadolinium, and charge balance achieved by calcium or zirconium substituting for at least some yttrium.
A method of producing an ultra-high dielectric constant garnet, the method comprising:
- providing an yttrium iron garnet structure;
- substituting out at least some yttrium for bismuth;
- substituting out at least some yttrium for gadolinium;
- and
- charge balancing by substituting out at least some yttrium for calcium or zirconium.
A radiofrequency device comprising:
- a component formed from an ultra-high dielectric constant garnet having an yttrium iron garnet crystal structure with at least some yttrium being substituted out for bismuth, at least some yttrium being substituted by gadolinium, and charge balance achieved by calcium or zirconium substituting for at least some yttrium.
Dependencies are inferred from the claim text.