Focusing ability comparison in the broadsidedirection. (IMAGE)

Tsinghua University Press

Focusing ability comparison in the broadsidedirection.

Caption

Comparison of near-field beams between the uniform circular array (UCA) and uniform concentric circular array (UCCA), where a series of UCAs are employed to enhance the focusing ability to enable multiple access in the same direction.

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Tsinghua Science and Technology, Tsinghua University Press

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