The invention relates to a wireless communication device that is coupled to an energy source, such as a battery, capacitor, or solar cell. The wireless communication device is coupled to a slot in the energy source to form a slot antenna for wireless communication. The slot antenna receives communication...http://www.google.com/patents/US20070216593?utm_source=gb-gplus-sharePatent US20070216593 - ENERGY SOURCE COMMUNICATION EMPLOYING SLOT ANTENNA