Patent ID: 8077105

Claim:
A directional bar-type antenna, comprising: a plurality of bar-shaped antenna elements including a core and a coil wound around the core, wherein a first bar-shaped antenna element of the plurality is disposed at a position of a mirror image of a second bar-shaped antenna element of the plurality with respect to the core of a third bar-shaped antenna element of the plurality; wherein the first and second bar-shaped antenna elements are positioned such that one end of each of the first and second bar-shaped antenna elements is proximate the third bar-shaped antenna element, and the other end of each of the first and second elements is remote from the third bar-shaped antenna element; and wherein a winding direction of the coil of the first bar-shaped antenna element is identical to the winding direction of the coil of the second bar-shaped antenna element, and is opposite to the winding direction of the coil of the third bar-shaped antenna element.