Traduction de l’étape 10
Étape 10
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We found three antennas in the Sonos Play:3, all attached to a communications card on the motherboard and held in place with a soft glue.
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Through a combination of the three antennas, the Play:3 communicates over SonosNet, a proprietary wireless mesh network that connects the player to a Sonos Bridge or another player (but not your home wireless network).
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The length of the antenna traces are listed on the antenna board (10 and 23.2 mm). The antenna design seems to be that of an Inverted F-Antenna, common in small electronics and implemented to reduce antenna size and improve multiple input multiple output (MIMO) systems.
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