Resonant cavity and plate hybrid antenna
AssigneeMicrosoft Technology Licensing, LLC
InventorMarc Harper
Life of this patent
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Abstract
A computing device includes a metal frame forming an exterior surface of the computing device and including an array of resonant cavities. Each resonant cavity has a center axis and defining a volume within the metal frame. Each volume contains a corresponding metal plate positioned within the volume on the center axis of the resonant cavity and a corresponding metal feed line positioned to capacitively drive the corresponding metal plate and the resonant cavity. A least a portion of the corresponding metal feed line is positioned within the volume on the center axis of the resonant cavity.
Claims20
An antenna assembly comprising:
- a metal frame including a resonant cavity, the resonant cavity having a center axis and defining a volume within the metal frame;
- a metal plate positioned within the volume on the center axis of the resonant cavity;
- and
- a metal feed line positioned to capacitively drive the metal plate and the resonant cavity, at least a portion of the metal feed line being positioned within the volume on the center axis of the resonant cavity.
A computing device comprising:
- a metal frame forming an exterior surface of the computing device and including an array of resonant cavities, each resonant cavity having a center axis and defining a volume within the metal frame, each volume containing:
- a corresponding metal plate positioned within the volume on the center axis of the resonant cavity, and
- a corresponding metal feed line positioned to capacitively drive the corresponding metal plate and the resonant cavity, at least a portion of the corresponding metal feed line being positioned within the volume on the center axis of the resonant cavity.
A method of selectively driving antenna assemblies of a computing device, each antenna assembly including a metal frame including a resonant cavity having a center axis and defining a volume within the metal frame, a metal plate positioned within the volume on the center axis of the resonant cavity, and a metal feed line, the method comprising:
- selectively setting a radio frequency signal source electrically connected to at least one of the metal feed lines to provide a radio frequency signal having one of a first frequency and a second frequency;
- capacitively driving at least one of the metal plates by the at least one of the metal feed lines at the first frequency, the at least one of the metal plates resonating to capacitively drive at least one of the resonant cavities to resonate predominantly in a first frequency band;
- and
- capacitively driving the at least one of the resonant cavities by the at least one of the metal feed lines at the second frequency to resonate predominantly in a second frequency band.
Dependencies are inferred from the claim text.