Microsoft Technology Licensing, LLC

Antenova Limited

Christopher Tomlin

Marc Harper

Devis Iellici

There is disclosed an antenna device comprising at least first and second electrically conductive tracks disposed in at least first and second planes in a laminate dielectric structure. Each electrically conductive track has at least two electrical connection points on an external surface of the laminate dielectric structure. The antenna device is reconfigurable between a plurality of different antenna types by connecting the electrical connection points to external circuitry in different configurations. In this way, a single antenna device may be configured as two or more of: a dielectric antenna, a planar inverted-F antenna (PIFA), a planar inverted-L antenna (PILA), a loop antenna, a monopole antenna and a capacitively-fed antenna.

Configurable antenna

There is disclosed an antenna system for mobile handsets and other devices. The antenna system comprises a dielectric substrate having first and second opposed surfaces, a conductive track on the substrate, and a separate, directly driven antenna to drive the parasitic loop antenna formed by the conductive track. Two grounding points are provided adjacent to each other on the first surface of the substrate, with the arms of the conductive track extending in generally opposite directions from the grounding points. The conductive tracks then extend towards an edge of the dielectric substrate, before passing to the second surface of the dielectric substrate and then passing across the second surface of the dielectric substrate following a path generally following the path taken on the first surface of the dielectric substrate. The conductive tracks then connect to respective sides of a conductive arrangement formed on the second surface of the dielectric substrate that extends into a central part of a loop formed by the conductive track on the second surface of the dielectric substrate.

Loop antenna for mobile handset and other applications

There is disclosed a loop antenna for mobile handsets and other devices. The antenna comprises a dielectric substrate () having first and second opposed surfaces and a conductive track () formed on the substrate (). A feed point () and a grounding point () are provided adjacent to each other on the first surface of the substrate (), with the conductive track () extending in generally opposite directions from the feed point () and grounding point () respectively and winding around the substrate () to the second surface and passing along a path generally opposite to the path taken on the first surface of the dielectric substrate (). The conductive tracks () then connect to respective sides of a conductive arrangement () that extends into a central part of a loop formed by the conductive track () on the second surface of the dielectric substrate (). The conductive arrangement () comprises both inductive and capacitive elements. The antenna can be multi-moded and operate in several frequency bands. Alternatively, the loop antenna is fed parasitically by a monopole or a feeding loop. The parasitic loop antenna my alternatively comprise a conductive loading plate instead of the conductive arrangement.

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Cambridge, United Kingdom

Christopher Tomlin