Patent ID: 8830135

Claim:
A planar dipole antenna element comprising: a substrate with a dielectric material having a first side and a second side; a first dipole element comprising: a first conductive area on the first side of the substrate; and a second conductive area on one of the first side and the second side of the substrate; a first transmission line on the first side of the substrate, the first transmission line having a first end connected to the second conductive area and a second end adapted for connection to a feed source; and a first sleeve on the second side of the substrate, the first sleeve comprising a third conductive area connected to the first conductive area at a first position and adapted for connection to a ground of the feed source at a second position, the distance between the first position and the second position corresponding to substantially one quarter wavelength, the first sleeve being substantially aligned on the second side of the substrate with the first conductive area on the first side of the substrate to provide a radiating function.