Patent ID: 7218288

Claim:
An antenna that uses four metal conductors, comprising: a rectangular reflector; first and second dipole antennae disposed in front of said reflector and aligned parallel to the long edge of the reflector and to each other; a pair of rod-shaped first metal conductors arranged parallel to said first and second dipole antennae and separated from said dipole antennae by a distance X 1 to the outside in the direction parallel to the short edge of the reflector, and separated by a distance Y 1 in the direction perpendicular to the reflector; and a pair of rod-shaped second metal conductors arranged parallel to said first and second dipole antennae and separated from said dipole antennae by a distance X 2 greater than distance X 1 to the outside with respect to each other in the direction parallel to the short edge of said reflector, and separated by a distance Y 2 in the direction perpendicular to said reflector.