A dipole antenna comprising: a dielectric substrate; a first radiating element formed on the dielectric substrate having a first bent portion and a second bent portion, wherein the second bent portion is located at a top half portion of the first radiating element and the first bent portion is located at a bottom half portion of the first radiating element; a second radiating element formed on the dielectric substrate having a third bent portion and a fourth bent portion, wherein the third bent portion is located at a top half portion of the second radiating element and the fourth bent portion is located at a bottom half portion of the second radiating element; a feed-in gap located between the first radiating element and the second radiating element spaces out the first radiating element and the second radiating element; a first feed-in point located between the first bent portion and the second bent portion; and a second feed-in point located between the third bent portion and the fourth bent portion; wherein the first radiating element and the second radiating element are disposed side-by-side horizontally across the dielectric substrate and wherein the first feed-in point and the second feed-in point are spaced out by the feed-in gap; characterized in that, the top half portion of the first radiating element is not structurally identical to the bottom half portion of the first radiating element or the top half portion of the second radiating element, and the bottom half portion of the second radiating element is not structurally identical to the bottom half portion of the first radiating element or the top half portion of the second radiating element. a dielectric substrate; a first radiating element formed on the dielectric substrate having a first bent portion and a second bent portion, wherein the second bent portion is located at a top half portion of the first radiating element and the first bent portion is located at a bottom half portion of the first radiating element; a second radiating element formed on the dielectric substrate having a third bent portion and a fourth bent portion, wherein the third bent portion is located at a top half portion of the second radiating element and the fourth bent portion is located at a bottom half portion of the second radiating element; a feed-in gap located between the first radiating element and the second radiating element spaces out the first radiating element and the second radiating element; a first feed-in point located between the first bent portion and the second bent portion; and a second feed-in point located between the third bent portion and the fourth bent portion; wherein the first radiating element and the second radiating element are disposed side-by-side horizontally across the dielectric substrate and wherein the first feed-in point and the second feed-in point are spaced out by the feed-in gap; characterized in that, the top half portion of the first radiating element is not structurally identical to the bottom half portion of the first radiating element or the top half portion of the second radiating element, and the bottom half portion of the second radiating element is not structurally identical to the bottom half portion of the first radiating element or the top half portion of the second radiating element.