“While Apple’s patent delves deeply into a new composite that will include a foam substrate formed of a plurality of foam cells, it’s the intent behind this that’s revealing,” Purcher reports. “The new composite would accommodate a new antenna window for Apple’s iPhone and iPad formed of RF transparent materials.”
Purcher reports, “The new antenna window could take up as much as half the backside of an iPhone. The proposed antenna window would have a seamless backside line that would almost be invisible.”
Much more in the full article, including Apple’s patent application illustrations, here.