Interferometric antenna array for wireless devices
First Claim
1. An interferometric antenna array for use with a wireless communications device in reducing electromagnetic energy in a region proximate to the antenna array, comprising:
- two radiating elements formed of conducting material and adapted for use with a wireless communications device and arranged side-by-side separated by a distance;
a power splitting means coupled to the wireless communications device for dividing a signal from a feed of the wireless communications device into two split signals;
a phase-shifting means coupled to the two radiating elements and to the power splitting means for creating a phase difference between the two split signals, the phase difference created by the phase-shifting means selected to form a wave pattern having a spatial null proximate to the antenna array;
wherein each of the two radiating elements is fed by one of the two phase-shifted split signals.
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Accused Products
Abstract
An interferometric antenna array for use with a wireless communications device in reducing electromagnetic energy in a region proximate to the antenna array. The antenna array comprises two or more radiating elements coupled through circuitry to the wireless communications device. The circuitry operates to appropriately divide a signal from the communications device into a plurality of signals and to phase-shift the plurality of signals such that the electromagnetic wave pattern formed proximate to the antenna array by the two or more radiating elements, which are fed by the phase-shifted plurality od signals, includes a spatial null. The spatial null is located at a region where sensitive electronic equipment, or some portion of a user of the communications device is also located.
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Citations
37 Claims
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1. An interferometric antenna array for use with a wireless communications device in reducing electromagnetic energy in a region proximate to the antenna array, comprising:
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two radiating elements formed of conducting material and adapted for use with a wireless communications device and arranged side-by-side separated by a distance;
a power splitting means coupled to the wireless communications device for dividing a signal from a feed of the wireless communications device into two split signals;
a phase-shifting means coupled to the two radiating elements and to the power splitting means for creating a phase difference between the two split signals, the phase difference created by the phase-shifting means selected to form a wave pattern having a spatial null proximate to the antenna array;
wherein each of the two radiating elements is fed by one of the two phase-shifted split signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 34, 35, 36, 37)
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18. An interferometric antenna array for use with a wireless communications device in reducing electromagnetic energy emitted proximate to the antenna array, comprising:
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three radiating elements formed of conducting material adapted for use with a wireless communications device and separated by distance from each other;
a power splitting means coupled to the wireless communications device or dividing a signal from a feed of the wireless communications device into three split signals;
a phase shifting means coupled to the three radiating elements and to the power splitting means for creating phase differences among the three split signals, the phase differences among the three split signals created by the phase shifting means selected to form a wave pattern having a spatial null proximate to the antenna array;
wherein each of the three radiating elements is fed by one of the three phase-shifted split signals. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. An interferometric antenna array for use with a wireless communications device for reducing electromagnetic energy emitted proximate to the antenna array, comprising:
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N number of radiating elements formed from conducting material adapted for use with a wireless communications device and separated by a distance;
a power splitting means coupled to the wireless communications device or dividing a signal from a feed of the wireless communication device into N split signals;
a phase-shifting means coupled to the N radiating elements and to the power splitting means for creating a phase difference among the N split signals, the phase differences among the N split signals created by the phase shifting means selected to form a wave pattern having a spatial null proximate to the antenna array;
wherein each of the N radiating elements is fed by one of the N phase-shifted split signals. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification