Patent ID: 6369771
Filing Date: 2002-04-09
Classification: H01Q

Abstract:
A dipole antenna for use in a wireless communication subscriber unit, comprising:a planar substrate made of dielectric material; a conductive planar element disposed on one side of the substrate and located in an upper region of the one side and a feed strip connected thereto and extending from the conductive planar element to a bottom edge of the substrate and terminating at a bottom feed point; and a conductive planar ground patch disposed on an opposite side of the substrate and located in a lower region of the opposite side, the conductive planar ground patch including a bottom end for facilitating connecting the ground patch to a ground plane aligned substantially orthonormal to the substrate; wherein capacitive coupling between the planar element and the planar ground patch creates a junction which provides an upper dipole feed in a midregion of the antenna such that the conductive planar element acts as one element of an unbalanced dipole antenna and the conductive planar ground patch acts as a second element of the unbalanced dipole antenna to form a beam which may be positionally directed along a horizon that is substantially parallel to the ground plane.