Patent ID: 7292199

Claim:
An antenna apparatus comprising first and second radiators arranged in parallel along a prescribed direction, said first and second radiators each including a first radiating element, and a second radiating element arranged symmetrically to said first radiating element with respect to a first axis along said prescribed direction; wherein said first and second radiating elements are provided in such a manner that a midpoint of a line segment extending between a feed point of said first radiating element and a feed point of said second radiating element is positioned on said first axis, and each of said first radiating element and said second radiating element has at least part of an outer shape formed such that a distance from said first axis to the part increases as a distance from said midpoint along said first axis increases, and said first and second radiating elements each further include a first transmission line portion provided on one side of opposing sides with respect to a second axis overlapping said line segment to connect tip end portions of said first and second radiating elements to each other.