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US 2014/0191042 A1Published application
Electromagnetic Enhancement and Decoupling
AssigneeOmni-Id Cayman Limited
InventorsJames Robert Brown, Christopher Robert Lawrence
Life of this patent
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Abstract
Apparatus and methods for providing a substantially surface independent tagging system are disclosed. A resonant dielectric cavity is defined between upper and lower conducting layers, and closed at one end by a conducting base portion. Incident radiation couples into the cavity and is resonantly enhanced. An electronic device or tag paced at the edge of the cavity experiences a high electric field strength on account of this enhancement and is driven into operation.
Claims12
A electromagnetic radiation decoupler comprising:
- a first cavity structure formed by a first conducting base portion connected to a first conducting side wall and a second conducting side wall, the first and second conducting side walls being spaced apart and substantially parallel and an open end opposite the first conducting side wall;
- and
- a second cavity structure formed by a second conducting base portion connected to the third conducting side wall and a forth conducting side wall, the third and fourth conducting side walls begin spaced apart and substantially parallel, and an open end opposite the second conducting side wall, wherein the second conducting side wall and fourth conducting side walls lie substantially on the same plane and wherein the first cavity structure and second cavity structure have adjacent open ends thereby forming a gap between the second conducting side wall and fourth conducting side wall.
A substantially surface independent EM tag comprising:
- a first cavity structure formed by a first conducting base portion connected to a first conducting side wall and a second conducting side wall, the first and second conducting side walls being spaced apart and substantially parallel and an open end opposite the first conducting side wall;
- a second cavity structure formed by a second conducting base portion connected to the third conducting side wall and a forth conducting side wall, the third and fourth conducting side walls begin spaced apart and substantially parallel, and an open end opposite the second conducting side wall, wherein the second conducting side wall and fourth conducting side walls lie substantially on the same plane, wherein the first conducting side wall extends to form the third conducting side wall, and wherein the first cavity structure and second cavity structure have adjacent open ends thereby forming a gap between the second conducting side wall and fourth conducting side wall;
- a continuous dielectric material located in the first cavity structure and the second cavity structure;
- a gap between the second conducting side wall and third conducting side wall;
- and
- an EM tag mounted in the vicinity of the gap.
3 more elements
Dependencies are inferred from the claim text.