“On the first day of September 2011, the US Patent & Trademark Office published a patent application from Apple that reveals one of the possible next chapters for Apple’s iPhone and iPad,” Jack Purcher reports for Patently Apple.

“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.”

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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.