The back cover is part of the antenna?

Jul 19, 2010
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Just playing with my captivate and noticed the two "copper" contacts on the back of the phone that make contact with two patches on the back of the cover. Any ideas? Maybe this is something entirely different and just new to me?
 
one of the reviews i watched on youtube said that the battery cover is indeed part of the antenna
 
That's kinda cool, kinda throws that ip4 "antenuation" (sp) argument out the window when we fully palm our antenna and its fine.

Thx for the reply