Dielectric composite materials including an electronically tunable dielectric phase and a calcium and oxygen-containing compound phase
AssigneeParatek Microwave, Inc.
InventorsChristopher Caspers, Elijah Underhill, Xubai Zhang
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Abstract
Dielectric composite materials including an electronically tunable dielectric phase and a calcium and oxygen-containing compound are disclosed. The tunable phase may comprise a material such as barium strontium titanate. The calcium/oxygen compound may comprise CaO or a transition metal-containing compound such as Ca2Nb2O7 or CaTiO3. The material may also include a rare earth oxide dopant such as CeO2. The materials resist dielectric breakdown and possess improved combinations of electronic properties. The materials may be tailored for specific applications.
Claims30
An electronically tunable dielectric material comprising at least one electronically tunable dielectric phase, at least one calcium and oxygen-containing compound, and at least one rare earth oxide dopant, wherein the calcium and oxygen-containing compound comprises CaSnO3, Ca2Nb2O7, Ca2Ta2O7, CaWO4, CaMaO4, CaHfO3, and/or CaGeO3, wherein the calcium and oxygen containing compound comprises from about 1 to about 60 weight percent of all the electronically tunable dielectric material.
An electronically tunable dielectric material comprising at least one electronically tunable dielectric phase and at least one calcium and oxygen-containing compound comprising CaSnO3, Ca2Nb2O7, Ca2Ta2l O7, CaWO4, CaMoO4, CaHfO3, and/or GaGeO3, wherein the calcium and oxygen-containing compound comprises from about 1 to about 60 weight percent of all the electronically tunable dielectric material.
A method of making an electronically tunable dielectric material comprising:
- mixing powders of at least one electronically tunable dielectric material, at least one calcium and oxygen-containing compound, wherein the calcium and oxygen-containing compound comprises CaSnO3, Ca2Nb2O7, Ca2Ta2O7, CaWO4, CaMoO4, CaHfO3, and/or CaGeO3, wherein the calcium and oxygen-containing compound comprises from about 1 to about 60 weight percent of all the electronically tunable dielectric material, and at least one rare earth oxide dopant;
- and sintering the mixture.
A method of making an electronically tunable dielectric material comprising:
- mixing powders of at least one electronically tunable dielectric material and at least one calcium and oxygen-containing compound comprising CaSnO3, Ca2Nb2O7, Ca2Ta2O7, CaWO4, CaMoO4, CaHfO3, and/or CaGeO3, said calcium and oxygen-containing compound comprises from about 1 to about 60 weight percent of all the electrically tunable dielectric material, and sintering the mixture.
Dependencies are inferred from the claim text.