Patent ID: 7649501

Claim:
An ultra-wideband antenna structure, comprising: a substrate having an edge, a first surface and a second surface opposite to the first surface; a ground surface mounted on the first surface; a radiating element mounted on the second surface and near the edge, being a three-dimensional metal piece, and including: a front end; a distal end extending from the front end; a radiating portion having an opening direction between the front end and the distal end; at least two folding lines approximately perpendicular to the opening direction; a feeding point disposed near a central portion of the front end and receiving a signal transmitted to the ultra-wideband antenna structure; and a short-circuiting point disposed near a corner of the distal end; and a short-circuited metal unit mounted on the first surface, and having a first end and a second end, wherein the first end is electrically connected to the ground surface, and the second end is electrically connected to the short circuiting point of the radiating element, and a part of the short-circuited metal unit is disposed on an edge of the first surface.