Wireless power orthogonal polarization antenna array
First Claim
1. A wireless power transmission device, the device comprising:
- a driver circuit configured to generate first and second driver signals;
a first antenna array of antenna coils configured to generate a first wireless field based on the first driver signal powering the first antenna array such that adjacent antenna coils of the first antenna array are powered with opposite polarities; and
a second antenna array of antenna coils partially overlapping the first antenna array, the second antenna array configured to generate a second wireless field orthogonal to the first wireless field, the second wireless field generated based on the second driver signal powering the second antenna array such that adjacent antenna coils of the second antenna array are powered with opposite polarities.
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Accused Products
Abstract
Systems and methods for wireless power transmission are described herein. In one aspect, an apparatus for wireless power transmission comprises a first antenna array of antenna coils configured to generate a first wireless field. A second antenna array of antenna coils generates a second wireless field. The first antenna array at least partially overlaps the second antenna array. A driver circuit generates first and second drive signals for generation of the first and second wireless fields via the first and second antenna arrays, respectively. The first wireless field is orthogonal with respect to the second wireless field. The first antenna array and the driver circuit power the antenna coils of the first antenna array with alternating polarities. The second antenna array and the driver circuit power the antenna coils of the second antenna array with alternating polarities.
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Citations
20 Claims
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1. A wireless power transmission device, the device comprising:
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a driver circuit configured to generate first and second driver signals; a first antenna array of antenna coils configured to generate a first wireless field based on the first driver signal powering the first antenna array such that adjacent antenna coils of the first antenna array are powered with opposite polarities; and a second antenna array of antenna coils partially overlapping the first antenna array, the second antenna array configured to generate a second wireless field orthogonal to the first wireless field, the second wireless field generated based on the second driver signal powering the second antenna array such that adjacent antenna coils of the second antenna array are powered with opposite polarities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for wireless power transmission, the method comprising:
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generating first and second drive signals; generating a first wireless field via a first antenna array of antenna coils by powering the first antenna array based on the first driver signal, powering the first antenna array comprising powering adjacent coils of the first antenna array with opposite polarities; and generating a second wireless field orthogonal to the first wireless field via a second antenna array of antenna coils by powering the second antenna array based on the second driver signal, the first antenna array at least partially overlapping the second antenna array, powering the second antenna array comprising powering adjacent coils of the second antenna array with opposite polarities. - View Dependent Claims (14, 15, 16)
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17. An apparatus for wireless power transmission, the apparatus comprising:
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means for generating first and second driver signals; a plurality of means for generating a first wireless field based on the first driver signal powering the plurality of first wireless field generating means such that adjacent means of the plurality of first wireless field generating means are powered with opposite polarities; and a plurality of means for generating a second wireless field orthogonal to and at least partially overlapping the first wireless field, the second wireless field based on the second driver signal powering the plurality of second wireless field generating means such that adjacent means of the plurality of second wireless field generating means are powered with opposite polarities. - View Dependent Claims (18, 19, 20)
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Specification