Calibrating a retro-directive array for an asymmetric wireless link

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United States of America Patent

PATENT NO 9287616
APP PUB NO 20140210683A1
SERIAL NO

14240405

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Abstract

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The disclosed embodiments relate to a technique for calibrating a retro-directive array. During the calibration process, the system measures a gain g1 through a first pair of antennas in the retro-directive array. Next, the system measures a gain g2 through a second pair of antennas in the retro-directive array. The system then simultaneously measures a combined gain G1,2 through the first and second pairs of antennas in the retro-directive array. If G1,2 is less than g1+g2 by more than a threshold value, the system calibrates a phase relationship between the first and second pairs of antennas.

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Patent Owner(s)

  • QUALCOMM INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aryanfar, Farshid Sunnyvale, US 46 502
Ren, Jihong Sunnyvale, US 46 782

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