Rogers Corporation
BROADBAND MULTIPLE LAYER DIELECTRIC RESONATOR ANTENNA AND METHOD OF MAKING THE SAME

Abstract:

A dielectric resonator antenna, DRA, includes: an electrically conductive ground structure; a plurality of volumes of dielectric materials disposed on the ground structure comprising N volumes, N being an integer equal to or greater than 3, disposed to form sequential layered volumes V.sub.i, i being an integer from 1 to N, wherein volume V.sub.1 forms an innermost first volume, wherein a successive volume V.sub.i+1 forms a layered shell disposed over and at least partially embedding volume V.sub.i, wherein volume V.sub.N at least partially embeds all volumes V.sub.1 to V.sub.N-1; wherein a portion of the dielectric material of volume V.sub.N bifurcates at least a portion of volumes V.sub.1 to V.sub.N-1; wherein the plurality of volumes of dielectric materials has a first effective dielectric constant along a first geometrical path, and has a second effective dielectric constant along a second geometrical path that is lower than the first effective dielectric constant.