| 摘要 |
An antenna array ( 200 ) having a number of patch antennas ( 202, 204, 206, 208 ) forming a circumferential radius is provided. The antenna array ( 200 ) is integrated within a body worn device ( 500 ) such as a belt, coat, or harness ( 210 ). Location tracking technology is used in conjunction with the antenna array ( 200 ) to select the optimal antenna from the array.
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