Antenova Limited

Microsoft Technology Licensing, LLC

James William Kingsley

Simon Philip Kingsley

Steven Gregory O'Keefe

Devis Iellici

Tim John Palmer

Scott William Spencer Tyler

Rebecca Thomas

Susan Williams

Steven Puckey

Steven Martin

Steven Gregory O'KEEFE

The present invention relates to an antenna structure comprising a dielectric pellet and a dielectric substrate with upper and lower surfaces and at least one groundplane, wherein the dielectric pellet is elevated above the upper surface of the dielectric substrate such that the dielectric pellet does not directly contact the dielectric substrate or the groundplane, and wherein the dielectric pellet is provided with a conductive direct feed structure. A radiating antenna component is additionally provided and arranged so as to be excited by the dielectric pellet. Elevating the dielectric antenna component so that it does not directly contact the groundplane or the dielectric substrate significantly improves bandwidth of the antenna as a whole.

Antenna for mobile telephone handsets, PDAs, and the like

An integrated antenna device comprising a first, dielectric antenna component () and a second, electrically-conductive antenna component (), wherein the first and second components are not electrically connected to each other but are mutually arranged such that the second component is parasitically driven by the first component when the first component is fed with a predetermined signal.

Hybrid antenna using parasitic excitation of conducting antennas by dielectric antennas

There is disclosed a dielectric resonator antenna adapted to resonate in an EHresonance mode, and also a method for the manufacture thereof. The desired resonance mode is achieved by careful positioning of a dielectric resonator () on a grounded substrate (), the resonator () being fed by way of a microstrip feed line () and a slot () in the grounded substrate (). Because the EHresonance mode has nulls in a direction of longitudinal extension of the dielectric resonator (), 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.

Dielectric resonator antenna

There is disclosed an antenna device including a dielectric substrate having a first, upper surface and a second, lower surface, a conductive groundplane on the second surface or located between the first and second surfaces. At least two conductive feedlines are formed on the first surface and extend from feed points to predetermined radiating points at edge or corner parts of the first surface. The groundplane does not extend under the radiating points. The groundplane is configured as to extend between the radiating points and the feedlines are widened at the radiating points and/or are provided with discrete dielectric elements at the radiating points. The antenna device provides broadband performance and good diversity within a small space.

Multiple antenna diversity on mobile telephone handsets, PDAs and other electrically small radio platforms

There is disclosed a dielectric antenna comprising a dielectric resonator mounted in direct contact with a microstrip transmission line formed on one side of a printed circuit board. The dielectric antenna may be a dielectric resonator antenna (DRA), a high dielectric antenna (HDA) or a dielectrically-loaded antenna. The simple construction of the antenna leads to improved manufacturing reliability and efficiency, and allows all functional features of the antenna to be located on one side of a printed circuit board (PCB) substrate.

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Cambridge, United Kingdom

James William Kingsley