▲ 179 ▼ Shining a light behind this metal credit card. (lemmy.world) submitted 5 months ago by violentfart@lemmy.world to c/mildlyinteresting@lemmy.world 18 comments fedilink hide all child comments
[–] IcedRaktajino@startrek.website 18 points 5 months ago (2 children) Is the squiggly line an antenna? permalink fedilink source hideshow 2 child comments replies: [–] slazer2au@lemmy.world 22 points 5 months ago It connects the chip to the NFC antenna that runs around the rest of the card. permalink fedilink source parent [–] violentfart@lemmy.world [S] 10 points 5 months ago* (last edited 5 months ago) I thought so at first, but since this card is metal I’m assuming it has something to do with adding the chip during manufacturing. Edit: from the other comment, it likely breaks up continuity of the metal card so NFC energy flows into the antenna instead of being absorbed by the metal card itself permalink fedilink source parent
[–] slazer2au@lemmy.world 22 points 5 months ago It connects the chip to the NFC antenna that runs around the rest of the card. permalink fedilink source parent
[–] violentfart@lemmy.world [S] 10 points 5 months ago* (last edited 5 months ago) I thought so at first, but since this card is metal I’m assuming it has something to do with adding the chip during manufacturing. Edit: from the other comment, it likely breaks up continuity of the metal card so NFC energy flows into the antenna instead of being absorbed by the metal card itself permalink fedilink source parent
