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US 7,253,789 B2Granted
Dielectric resonator antenna
AssigneeAntenova Ltd.
InventorsSimon Philip Kingsley, Steven Gregory O'Keefe, Tim John Palmer, James William Kingsley
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AssigneeAntenova Ltd.
InventorsSimon Philip Kingsley, Steven Gregory O'Keefe, Tim John Palmer, James William Kingsley
Estimating the term…
There is disclosed a dielectric resonator antenna adapted to resonate in an EH11δ resonance mode, and also a method for the manufacture thereof. The desired resonance mode is achieved by careful positioning of a dielectric resonator (2) on a grounded substrate (1), the resonator (2) being fed by way of a microstrip feed line (9) and a slot (6) in the grounded substrate (1). Because the EH11δ resonance mode has nulls in a direction of longitudinal extension of the dielectric resonator (2), a plurality of antenna can be placed end-to-end so as to form an array with reduced coupling between adjacent antennas and with vertical polarisation, which is desirable for mobile communications applications.
A dielectric resonator antenna comprising a dielectric resonator having a substantially planar longitudinal surface and a grounded substrate having first and second opposed surfaces with a dielectric substrate adjacent to the second surface, wherein:
A method of manufacturing a dielectric resonator antenna the antenna comprising a dielectric resonator having a substantially planar longitudinal surface and a grounded substrate having first and second opposed surfaces with a dielectric substrate adjacent to the second surface, the method comprising:
A dielectric resonator antenna comprising a dielectric resonator having a substantially planar longitudinal surface, a dielectric substrate having first and second opposed surfaces with a conductive groundplane being provided on the second surface and a direct microstrip feedline being provided on the first surface so as to extend longitudinally therealong, the dielectric resonator being mounted on the first surface such that the planar longitudinal surface of the dielectric resonator contacts the direct microstrip feedeline and is coextensive therewith, wherein substantially all of the longitudinal planar surface of the dielectric resonator is provided with a conductive layer.
A dielectric resonator antenna comprising a dielectric resonator having a substantially planar longitudinal surface, a dielectric substrate having first and second opposed surfaces with a conductive groundplane being provided on the second surface and a direct microstrip feedline being provided on the first surface so as to extend longitudinally therealong, the dielectric resonator being mounted on the first surface such that the planar longitudinal surface of the dielectric resonator contacts the direct microstrip feedline and is coextensive therewith, wherein the antenna resonates in an EH mode during operation thereof.
A dielectric resonator antenna comprising a dielectric resonator having a substantially planar longitudinal surface, a dielectric substrate having first and second opposed surfaces with a conductive groundplane being provided on the second surface and a direct microstrip feedline being provided on the first surface so as to extend longitudinally therealong, the dielectric resonator being mounted on the first surface such that the planar longitudinal surface of the dielectric resonator contacts the direct microstrip feedline and is coextensive therewith, wherein only a part of the longitudinal planar surface of the dielectric resonator that contacts the direct microstrip feedline is provided with a conductive layer.
Dependencies are inferred from the claim text.