Shielded coil for inductive wireless applications
First Claim
1. A surface mounted coil for wireless communication, the coil comprisinga wire wound about a core a plurality of times and having its ends connected to mounting sections at each end of said core, each mounting section including an electrically conductive mounting layer that engages with an electrical contact within a consumer device;
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1 Assignment
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Accused Products
Abstract
The present invention relates to a surface mounted coil (200) for wireless communication. The coil (200) comprises a wire (202) wounded about a core (204) thereby establishing a plurality of windings and having its ends terminated on mounting sections (208) at each end of the core (204). The coil (200) further comprises a shielding layer (212, 300) wound about a central part of the core (204) thereby covering said windings. The shielding layer (212, 300) comprises a shielding pattern and a contact section (214) for connecting to a ground level and to the shielding pattern.
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Citations
23 Claims
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1. A surface mounted coil for wireless communication, the coil comprising
a wire wound about a core a plurality of times and having its ends connected to mounting sections at each end of said core, each mounting section including an electrically conductive mounting layer that engages with an electrical contact within a consumer device; - and
a shielding layer provided between mounting sections, said layer covering the coil windings and including a shielding pattern and a contact section that connects to a reference level and to said shielding pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A surface mounted coil for wireless communication, the coil comprising
a wire wound about a core a plurality of times and having its ends connected to mounting sections at each end of said core; - and
a shielding layer provided between mounting sections and covering said windings, said shielding layer including a shielding pattern and a contact section for connecting to a reference level and to said shielding pattern, and wherein said shielding pattern includes a series of conductive tongs extending from a longitudinal conductive axis such that the conductive tongs define a width varying along said longitudinal conductive axis.
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16. A surface mounted coil for wireless communication, the coil comprising
a wire wound about a core a plurality of times and having its ends connected to mounting sections at each end of said core; - and
a shielding layer provided between mounting sections and covering said windings, said shielding layer including a shielding pattern and a contact section for connecting to a reference level and to said shielding pattern, and wherein said shielding pattern includes a series of conductive tongs extending from a longitudinal conductive axis such that the conductive tongs define a width varying along a direction perpendicular to said longitudinal conductive axis.
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17. A shielding layer for shielding an antenna for inductive wireless communication the layer comprising:
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at least one non-conductive material; and shielding pattern including one or more conductive tracks single ended connected to a contact section and a series of conductive tongs extending from a longitudinal conductive axis such that the tongs define a width varying along said longitudinal conductive axis.
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18. A method for manufacturing a surface mounted coil for wireless communication, the method comprising:
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winding a wire about a core a plurality of times; and connecting ends of said wire to mounting sections at each end of said core, where each mounting section includes an electrically conductive mounting layer that engages with an electrical contact within a consumer device, adding a shielding layer that includes a non-conductive layer and a conductive shielding pattern, between said mounting sections, said adding including covering the coil windings with the shielding layer, and connecting a contact section to a reference level and to said shielding pattern. - View Dependent Claims (19, 20, 21, 22)
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23. A shielding layer for shielding an antenna for inductive wireless communication, the layer comprising:
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at least one non-conductive material; and a shielding pattern including one or more conductive tracks single ended connected to a contact section, where said pattern is disposed on said non-conductive material, and further where said shielding pattern includes a series of conductive tongs extending from a longitudinal conductive axis such that the tongs define a width varying along a direction perpendicular to said longitudinal conductive axis.
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Specification