Why doesn't the aluminum cover all of the back?


sjinsjca

macrumors 68020
Oct 30, 2008
2,060
398
Radio waves don't penetrate aluminum well. So some of the several antennas in the phone are located beneath those ceramic plates.
 

DOUGHNUT

macrumors regular
Jan 8, 2006
241
10
Yep, same reason LTE iPads has the black plastic strip on top and MacBooks have plastic covering the hinge
 

sjinsjca

macrumors 68020
Oct 30, 2008
2,060
398
Yep, same reason LTE iPads has the black plastic strip on top and MacBooks have plastic covering the hinge
Just a fine point: the 3G models have had that plastic window since the first-gen iPad. It's not just an LTE thing, it's a RF thing.