Tunable resonators using high dielectric constant ferrite rods
AssigneeSkyworks Solutions, Inc.
InventorsDavid Bowie Cruickshank, John Christopher Deriso, Michael David Hill
Life of this patent
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Abstract
Disclosed are single-piece magnetically tunable ferrite rods that can be used for radio-frequency (RF) applications, and methods of manufacturing the resonators using synthetic garnets. In some embodiments, a separate tuner need not be used in the resonator during magnetic tuning. Examples of fabrication methods and RF-related properties are also disclosed.
Claims20
A tunable resonator system comprising:
- a cavity;
- a single-piece high-dielectric resonator including a tunable magnetic element formed out of one material and located within the cavity, the single-piece high-dielectric resonator having a dielectric constant of at least 20, a diameter d of 0.09≤d≤0.11 inches, and a height h of 0.09≤h≤0.11 inches;
- and
- an adjustable magnetic field.
An antenna system comprising:
- an antenna;
- a subsystem;
- a converter;
- and
- at least one filter having a single-piece high-dielectric resonator including a tunable magnetic element formed out of one material, the single-piece high-dielectric resonator having a dielectric constant of at least 20, a diameter d of 0.09≤d≤0.11 inches, and a height h of 0.09≤h≤0.11 inches.
A tunable resonator comprising a single-piece high-dielectric resonator including a tunable magnetic element, the resonator and tunable magnetic element being formed out of a single synthetic garnet material selected from the group consisting of BixY3−x−0.35Ca0.35Zr0.35Fe4.65O12, Bi(Y,Ca)2Fe4.2MI0.4MII0.4O12, Y2.15−2xBi0.5Ca0.35+2xZr0.35VxFe4.65−xO12, Bi0.9Ca0.9xY2.1−0.9x(Zr0.7Nb0.1)xFe5−0.8xO12, Bi0.9Ca0.9+2xY2.1−0.9−2x, Zr0.7Nb0.1VxFe4.2−xO12, Bi1.4Ca0.55+2xY1.05−2xZr0.55VxFe4.45−xO12, and Y2CaFe4.4Zr0.4Mo0.2O12 and having a dielectric constant of at least 20, a diameter d of 0.09≤d≤ and 0.11 inches, and a height h of 0.09≤h≤0.11 inches.
Dependencies are inferred from the claim text.