Patent ID: 8723751

Claim:
An antenna system comprising: an antenna module including a substrate including opposite first and second surfaces, and a plurality of planar dipole antennas disposed on said first surface of said substrate, each of said planar dipole antennas including a short-circuit section that has a grounding segment and two sides, a pair of first radiator sections that are operable in a first frequency band and that are connected electrically and respectively to said two sides of said short-circuit section, and a pair of second radiator sections that are operable in a second frequency band, each of said second radiator sections having a feed-in portion and an extending portion, said feed-in portion being connected electrically to said short-circuit section and having a distal end distal from said short-circuit section, said extending portion extending from said distal end of said feed-in portion of the respective one of said second radiator sections, one of said second radiator sections of each of said planar dipole antennas having a feed-in segment, said planar dipole antennas being arranged such that geometric centers of said planar dipole antennas are respectively spaced apart from a center point bounded by said planar dipole antennas by a predetermined distance, such that each of said planar dipole antennas is spaced apart from an adjacent one of said planar dipole antennas by a predetermined minimum distance, and such that, for each of said planar dipole antennas, said feed-in segment, said grounding segment, and said center point are disposed on a same line; and a system module having a grounding plane that faces toward and that is spaced apart from and parallel to said second surface of said substrate.