Patent ID: 6396456
Filing Date: 2002-05-28
Classification: H01Q

Abstract:
A dipole antenna for use in a wireless 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 including a first portion and a second portion disposed on an opposite side of the substrate and positioned in a lower region of the opposite side, the second portion connected to and extending from a midsection of the first portion to the bottom edge of the substrate for facilitating connecting the conductive planar ground patch to a ground plane aligned substantially orthonormal to the substrate; wherein capacitive coupling between the conductive planar element and the conductive planar ground patch creates a junction which provides an upper dipole feed point in a mid-region of the substrate such that the conductive planar element acts as a first 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.