Patent ID: 8791872

Claim:
An omni-directional ultra-wide band antenna comprising: at least two metallic members ( 14 , 15 , 16 ) arranged symmetrically and opposite an earth plane ( 11 ), said antenna having a symmetry axis (AA′) perpendicular to the earth plane ( 11 ), said metallic members being distributed around said symmetry axis (AA′), and having identical geometry and dimensions, wherein all the metallic members are connected to each other at a common point located along the symmetry axis of said antenna, said common point being connected to a launch probe forming feed means; wherein each metallic member ( 14 - 16 ) has a symmetry axis (BB′), a geometry, a base and an upper end opposite to the earth plane ( 11 ), wherein each of the metallic members ( 14 , 15 , 16 ) has a surface chosen among the following group: triangular, with concave edges or wavy edges, triangular with convex or wavy edges in relation to the symmetry axis (BB′)of said metallic members, wherein said geometry forms a point at its base that connects to the common point and widens from the common point to its upper end along the symmetry axis (BB′) of said metallic members ( 14 - 16 ), the metallic members ( 14 - 16 ) being oriented in a direction extending from the common point ( 17 ) of said metallic members and opposite the earth plane ( 11 ); wherein each metallic member has a curvature defining a three-dimensional profile having a curvature, on one hand, along a longitudinal axis of the metallic member and on the other hand along the direction transverse to the longitudinal axis of the metallic member.