Wireless device capable of multiband MIMO operation
First Claim
1. A portable computer capable of multiband Multiple Input Multiple Output (MIMO) operation comprising:
- a MIMO system comprising;
a first radiating system configured to operate in at least two frequency bands;
a second radiating system configured to operate in at least two frequency bands including one frequency band in common with a frequency band of the first radiating system; and
a ground plane common to the first and second radiating systems,the first radiating system comprising a first radiation booster acting in cooperation with the ground plane, the first radiation booster being shaped to fit in an imaginary sphere having a diameter smaller than ¼
of a diameter of a radiansphere of a free-space operating wavelength corresponding to a lowest frequency of a lowest frequency band in which the first radiating system operates, andthe second radiating system comprising a second radiation booster acting in cooperation with the ground plane, the second radiation booster being shaped to fit in an imaginary sphere having a diameter smaller than ¼
of a diameter of a radiansphere of a free-space operating wavelength corresponding to a lowest frequency of a lowest frequency band in which the second radiation system operates.
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Accused Products
Abstract
A wireless handheld or portable device includes a communication module with a MIMO system that provides multiband MIMO operation in first and second frequency bands. The MIMO system includes first and second radiating systems, a ground plane common to the two radiating systems, first and second radio frequency systems, and a MIMO module. The first and second radiating systems both operate in the first and second frequency bands and respectively include first and second radiating structures coupled to the ground plane, which respectively have first and second radiation boosters that fit in an imaginary sphere having a diameter smaller than ¼ of a diameter of a radiansphere of a longest wavelength of the first frequency band. The first and second radiofrequency systems respectively modify impedance of the first and second radiating structures to provide impedance matching to the first and second radiating systems within the first and second frequency bands.
69 Citations
20 Claims
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1. A portable computer capable of multiband Multiple Input Multiple Output (MIMO) operation comprising:
a MIMO system comprising; a first radiating system configured to operate in at least two frequency bands; a second radiating system configured to operate in at least two frequency bands including one frequency band in common with a frequency band of the first radiating system; and a ground plane common to the first and second radiating systems, the first radiating system comprising a first radiation booster acting in cooperation with the ground plane, the first radiation booster being shaped to fit in an imaginary sphere having a diameter smaller than ¼
of a diameter of a radiansphere of a free-space operating wavelength corresponding to a lowest frequency of a lowest frequency band in which the first radiating system operates, andthe second radiating system comprising a second radiation booster acting in cooperation with the ground plane, the second radiation booster being shaped to fit in an imaginary sphere having a diameter smaller than ¼
of a diameter of a radiansphere of a free-space operating wavelength corresponding to a lowest frequency of a lowest frequency band in which the second radiation system operates.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tablet computing device capable of multiband Multiple Input Multiple Output (MIMO) operation comprising:
a MIMO system comprising; a first radiating system configured to operate in at least two frequency bands; a second radiating system configured to operate in at least one frequency band in common with a frequency band of the first radiating system; and a ground plane common to the first and second radiating systems, the first radiating system comprising a first radiation booster acting in cooperation with the ground plane, the first radiation booster being shaped to fit in an imaginary sphere having a diameter smaller than ¼
of a diameter of a radiansphere of a free-space operating wavelength corresponding to a lowest frequency of a lowest frequency band in which the first radiating system operates, andthe second radiating system comprising a second radiation booster acting in cooperation with the ground plane, the second radiation booster being shaped to fit in an imaginary sphere having a diameter smaller than ¼
of a diameter of a radiansphere of a free-space operating wavelength corresponding to a lowest frequency of a lowest frequency band in which the second radiation system operates.- View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification