Near-field communication antenna, antenna module and wireless communications apparatus
First Claim
1. A near-field communication antenna comprising at least one annular coil, a planar, non-magnetic resin member holding said annular coil, a planar, soft-magnetic member overlapping said non-magnetic resin member via said annular coil, and terminals connected to conductor wire leads of said annular coil;
- said annular coil being disposed in a circumferential recess along a periphery of said non-magnetic resin member, lest that said annular coil projects from the periphery of said soft-magnetic member and that said soft-magnetic member is disposed in an outside region of said annular coil;
an entire inside of said annular coil is a non-magnetic region, or an almost entire inside of said annular coil is a non-magnetic region filled with said soft-magnetic member; and
conductor wire leads of said annular coil being connected to said terminals through notches formed in a peripheral edge of said soft-magnetic member.
1 Assignment
0 Petitions
Accused Products
Abstract
A near-field communication antenna comprising at least one annular coil, a planar, non-magnetic resin member holding the annular coil, a planar, soft-magnetic member overlapping the non-magnetic resin member via the annular coil, and terminals to which the conductor wire leads of the annular coil are connected, the annular coil being received in a circumferential recess along the periphery of the non-magnetic resin member lest that it projects from the periphery of the magnetic member, and the conductor wire leads of the annular coil being connected to the terminals through notches provided in the peripheral edge of the soft-magnetic member.
13 Citations
24 Claims
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1. A near-field communication antenna comprising at least one annular coil, a planar, non-magnetic resin member holding said annular coil, a planar, soft-magnetic member overlapping said non-magnetic resin member via said annular coil, and terminals connected to conductor wire leads of said annular coil;
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said annular coil being disposed in a circumferential recess along a periphery of said non-magnetic resin member, lest that said annular coil projects from the periphery of said soft-magnetic member and that said soft-magnetic member is disposed in an outside region of said annular coil; an entire inside of said annular coil is a non-magnetic region, or an almost entire inside of said annular coil is a non-magnetic region filled with said soft-magnetic member; and conductor wire leads of said annular coil being connected to said terminals through notches formed in a peripheral edge of said soft-magnetic member. - View Dependent Claims (2, 3, 4, 7, 8, 9, 10, 11, 12)
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5. A near-field communication antenna comprising at least one annular coil, a planar, non-magnetic resin member holding said annular coil, a planar, soft-magnetic member overlapping said non-magnetic resin member via said annular coil, and terminals connected to conductor wire leads of said annular coil;
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said annular coil being disposed in a circumferential recess along a periphery of said non-magnetic resin member, lest that said annular coil projects from the periphery of said soft-magnetic member; and conductor wire leads of said annular coil being connected to said terminals through notches formed in a peripheral edge of said soft-magnetic member; said annular coil being constituted by first and second coils concentrically arranged; one end of a conductor wire of each of said first and second coils being connected to a ground terminal, and the other end of a conductor wire of each of said first and second coils being connected to a signal terminal; and said first and second coils being wound in an opposite direction when viewed from said ground terminal. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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6. A near-field communication antenna comprising at least one annular coil, a planar, non-magnetic resin member holding said annular coil, a planar, soft-magnetic member overlapping said non-magnetic resin member via said annular coil, and terminals connected to conductor wire leads of said annular coil;
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said annular coil being disposed in a circumferential non-magnetic resin member, lest that said annular coil projects from the periphery of said soft-magnetic member; and conductor wire leads of said annular coil being connected to said terminals through notches formed in a peripheral edge of said soft-magnetic member; said annular coil being constituted by the first and second coils arranged on a surface of said soft-magnetic member; one end of a conductor wire of each of said first and second coils being connected to a ground terminal, and the other end of a conductor wire of each of said first and second coils being connected to a signal terminal; and said first and second coils being wound in an opposite direction when viewed from said ground terminal. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification