Comment 2 for bug 85455

Given that it's an atheros card, linux support would normally be done via the madwifi driver. However, it seems that the chipset in your card is atheros AR5008 (AR5416) which is not yet supported by madwifi. See http://madwifi.org/ticket/1001 for details [and developers getting buried under a mountain of user requests for adding driver support].

As an alternative, there are various reports of this card working via ndiswrapper though:
http://ndiswrapper.sourceforge.net/mediawiki/index.php/List (search for "5416")
http://ubuntuforums.org/showthread.php?t=348918
http://ubuntuforums.org/showthread.php?t=307258

Rejecting the bug report since this card not working out of the box is, unfortunately, not a bug in ubuntu.