Patent ID: 8525741

Claim:
A multi-loop antenna system comprising: an antenna module including a substrate, and a plurality of loop antennas disposed on said substrate, and arranged such that each of extending lines extending respectively from geometric centers of said loop antennas to a center point that is bounded by said loop antennas has a predetermined length, and that each of said loop antennas is spaced apart from an adjacent one of said loop antennas by a predetermined minimum distance, each of said loop antennas including a first radiator portion operable in a first frequency band, and having opposite ends that respectively serve as a signal-feed section and a grounding section, and that are adjacent to and spaced apart from each other such that said first radiator portion substantially forms a loop, and a second radiator portion operable in a second frequency band, and having opposite ends that are connected electrically and respectively to said signal-feed section and said grounding section of said first radiator portion, such that said second radiator portion substantially forms a loop; and a system module having a grounding plane that faces toward and that is spaced apart from and parallel to said substrate such that said grounding plane is able to reflect radiation from said antenna module.