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US 2017/0133141 A1Published application
Devices and methods for below-resonance radio-frequency applications
AssigneeSkyworks Solutions, Inc.
InventorsDavid Bowie CRUICKSHANK, Iain Alexander MACFARLANE, Michael David HILL
Life of this patent
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Abstract
Devices and methods for below-resonance radio-frequency applications. In some embodiments, a ferrite device can include a modified yttrium iron garnet material in which bismuth occupies at least some of dodecahedral sites, and aluminum occupies at least some of tetrahedral sites.
Claims20
A ferrite device comprising a modified yttrium iron garnet material in which bismuth occupies at least some of dodecahedral sites, and aluminum occupies at least some of tetrahedral sites.
A circulator comprising:
- a conductor having a plurality of signal ports;
- one or more magnets configured to provide a magnetic field;
- and
- one or more ferrite disks implemented relative to the conductor and the one or more magnets so that a radio-frequency signal is routed selectively among the signal ports due to the magnetic field, each of the one or more ferrite disks including a modified yttrium iron garnet material in which bismuth occupies at least some of dodecahedral sites, and aluminum occupies at least some of tetrahedral sites.
1 more element
A wireless system comprising:
- a transceiver configured to process signals;
- an antenna in communication with the transceiver;
- and
- a signal routing circuit implemented between the transceiver and the antenna, the signal routing circuit having a circulator that includes a conductor having a plurality of signal ports, one or more magnets configured to provide a magnetic field, the circulator further including one or more ferrite disks implemented relative to the conductor and the one or more magnets so that a signal is routed selectively among the signal ports due to the magnetic field, each of the one or more ferrite disks including a modified yttrium iron garnet material in which bismuth occupies at least some of dodecahedral sites, and aluminum occupies at least some of tetrahedral sites.
1 more element
Dependencies are inferred from the claim text.