Watchstrap-Embedded Four-Element Multiple-Input–Multiple-Output Antenna Design for a Smartwatch in 5.2–5.8 GHz Wireless Applications

<div>(a) Measured antenna efficiency and peak gain for the four-element MIMO antenna worn on the phantom hand; (b) simulated antenna efficiency and peak gain for the four-element MIMO antenna mounted on the wrist.</div>

International Journal of Antennas and Propagation

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Figure 14

Figure 14: Watchstrap-Embedded Four-Element Multiple-Input–Multiple-Output Antenna Design for a Smartwatch in 5.2–5.8 GHz Wireless Applications 