Abstract: An antenna device is an antenna device including a mesh-shaped conductor pattern having a plurality of mesh portions, in which the conductor pattern includes a plurality of first electroconductive lines extending in a first direction and a plurality of second electroconductive lines extending in a second direction intersecting the first direction, an opening and a slit extending from the opening to an edge of the conductor pattern are formed in the conductor pattern as a region where the first electroconductive lines and the second electroconductive lines are not formed, a width of the slit is smaller than a width of the opening, and at least a part of the mesh portions arranged at an edge of the slit is opened to the slit.

Abstract: Disclosed herein is an antenna device that includes: a metal plate having a first slit extending in a long side direction thereof and a second slit extending in a short side direction thereof; a first coil disposed so as to overlap with the metal plate in a plan view and circling along an outer edge of the metal plate; and a second coil electrically connected to the first coil, disposed so as to be surrounded by the first coil, and disposed so as to overlap with the first slit. The first slit has a first end that is open to divide the outer edge and a second end terminating without reaching the outer edge. The second slit has a third end that is open to divide the outer edge and a fourth end terminating without reaching the outer edge.

Abstract: Disclosed herein is an antenna device that includes a coil pattern having first to third winding parts each having a plurality of turns. The first winding part has an outer peripheral end being opened and an inner peripheral end connected to an outer peripheral end of the second winding part. The second winding part has an inner peripheral end connected to an outer peripheral end of the third winding part. The third winding part has an inner peripheral end being opened. Each turn of the second winding part has a first partial winding part wound concentrically with the third winding part and a second partial winding part protruding radially outward from the first partial winding part and wound about a center axis positioned between the first partial winding part and the first winding part.

Abstract: Disclosed herein is an antenna device that includes a magnetic body having a through hole, and a coil pattern including a first winding part and a second winding part overlapping the through hole of the magnetic body. The through hole of the magnetic body includes first and third inner peripheral edges each including a section extending in a first direction and positioned opposite to each other and second and fourth inner peripheral edges each including a section extending in a second direction perpendicular to the first direction and positioned opposite to each other. The second winding part includes an inner peripheral side part wound along the first to fourth inner peripheral edges and an outer peripheral side part positioned outside the inner peripheral side part and wound along the second to fourth inner peripheral edges without being along the first inner peripheral edge.

Abstract: Disclosed herein is an antenna device that includes a first coil wound in a plurality of turns, and a second coil disposed outside the first coil as viewed in a coil axis direction of the first coil. The first coil is configured such that a first interval between turns in a first direction is larger than a second interval between turns in a second direction perpendicular to the first direction. An inter-coil distance between an outer edge of the first coil and an inner edge of the second coil is larger than the second interval as viewed in the coil axis direction.

Abstract: Disclosed herein is a coil component that includes a planar coil pattern having first and a second main surfaces opposite to each other, a first resin layer covering the first main surface of the coil pattern, and a magnetic body covering the second main surface of the coil pattern. The coil pattern includes a terminal part positioned at an end thereof. The first resin layer has a first opening at a part of the terminal part. The magnetic body has a second opening at a part of the terminal part. The first main surface of the terminal part has a first part overlapping the first opening and a second part covered with the first resin layer. The second main surface of the terminal part has a third part overlapping the second opening and a fourth part covered with the magnetic body.

Abstract: Disclosed herein is an antenna module that includes a substrate on which a first coil is provided, a base material on which a second coil and a magnetic sheet overlapping the second coil are provided, and an adhesive layer bonding the substrate and the base material such that the first coil and the magnetic sheet overlap each other.

Abstract: Disclosed herein is an antenna device that includes a first coil pattern having at least first, second, and third turns. As viewed in a coil axis direction, each of the first, second, and third turns has an opening with a width larger in a first direction than in a second direction orthogonal to the first direction. The width of the opening of the second turn in the second direction is larger than a width of the opening of the first turn in the second direction. The width of the opening of the third turn in the second direction is larger than the width of the opening of the second turn in the second direction and smaller than a width of the opening of the first turn in the first direction.

Abstract: Disclosed herein is an antenna device that includes a substrate; and a first coil pattern, a second coil pattern, and a first capacitor which are provided on a surface of the substrate. An opening region of the first coil pattern is smaller in area than an opening region of the second coil pattern. The first coil pattern is disposed so as to overlap the opening region of the second coil pattern. One of the first and second coil patterns is connected to the first capacitor to constitute a closed circuit.

Abstract: Disclosed herein is an antenna device that includes a metal plate having a slit, a first coil, and a second coil disposed inside an opening of the first coil and connected to the first coil. The first end of the slit is opened so as to divide an outer edge of the metal plate. The second end of the slit is terminated at a position away from the outer edge of the metal plate by a first distance so as not to divide the outer edge of the first metal plate. The slit includes a first section overlapping the second coil, a second section positioned between the first section and the first end, and a third section positioned between the first section and the second end. The first distance is smaller than a longer one of the second and third sections.

Abstract: Disclosed herein is an antenna module sheet that includes a first coil pattern including first to third turns. The first turn is positioned in an opening of the second turn, and the second turn is positioned in an opening of the third turn. Each of the first and second turns has an opening width larger in a first direction than in a second direction. The first distance between the first and second turns in the second direction is smaller than the second distance between the second and third turns in the second direction. The third distance between the first and second turns in the first direction is smaller than the first distance. The fourth distance between the second and third turns in the first direction is smaller than the second distance. The third turn has an opening width larger in the second direction than in the first direction.

Abstract: Disclosed herein is an antenna device that includes a magnetic body having a through hole therein, and a coil pattern having upper and bottom surfaces positioned opposite to each other in a thickness direction thereof and a side surface connecting the upper and bottom surfaces. The coil pattern is partially embedded in the magnetic body such that the upper and side surfaces of the coil pattern are at least partially covered with the magnetic body. The coil pattern includes a first winding part and a second winding part protruding from the first winding part toward the through hole formed in the magnetic body in a plan view and wound in a direction opposite to the winding direction of the first winding part. The second winding part is wound along a periphery of the through hole formed in the magnetic body.

Abstract: Disclosed herein is an antenna device that includes a first coil wound in a plurality of turns, and a second coil disposed outside the first coil as viewed in a coil axis direction of the first coil. The first coil is configured such that a first interval between turns in a first direction is larger than a second interval between turns in a second direction perpendicular to the first direction. An inter-coil distance between an outer edge of the first coil and an inner edge of the second coil is larger than the second interval as viewed in the coil axis direction.

Abstract: Disclosed herein is a coil component that includes a first coil, and a second coil disposed so as to surround the first coil. The first coil includes a first section extending in a first direction, a second section extending in a second direction orthogonal to the first direction, and a third section positioned between the first and second sections. Gaps between the first, second, and third sections of the first coil and the second coil as viewed in a coil axis direction have a first width, a second width, and a third width, respectively. The second width is larger than the first width and smaller than the third width.

Abstract: Disclosed herein is an antenna module sheet that includes a first coil pattern including first to third turns. The first turn is positioned in an opening of the second turn, and the second turn is positioned in an opening of the third turn. Each of the first and second turns has an opening width larger in a first direction than in a second direction. The first distance between the first and second turns in the second direction is smaller than the second distance between the second and third turns in the second direction. The third distance between the first and second turns in the first direction is smaller than the first distance. The fourth distance between the second and third turns in the first direction is smaller than the second distance. The third turn has an opening width larger in the second direction than in the first direction.

Abstract: Disclosed herein is an antenna module that includes a substrate, a coil pattern formed on the first surface of the substrate, and a magnetic member covering the second surface of the substrate and having a through hole formed therein. The coil pattern has first and second coil sections. The second coil section is disposed in the opening of the first coil section. The inner peripheral end of the first coil section is connected to the outer peripheral end of the second coil section. The second coil section has a first extending section extending along the first coil section and a second extending section protruding from the first extending section toward the through hole in a plan view and wound in an opposite direction to a winding direction of the first extending section in a state overlapping the through hole.

Abstract: Disclosed herein is an antenna module that includes a coil pattern planarly wound in a plurality of turns; a first adhesive layer attached to a first surface of the coil pattern in an axial direction of the coil pattern; a second adhesive layer attached to a second surface of the coil pattern in the axial direction of the coil pattern, the second surface being opposite to the first surface; and a magnetic member attached to the first adhesive layer such that the first adhesive layer is sandwiched between the coil pattern and the magnetic member. The first and second adhesive layers bulge to a gap between adjacent patterns of the coil pattern.

Abstract: Disclosed herein is an antenna device that includes a first coil pattern having at least first, second, and third turns. As viewed in a coil axis direction, each of the first, second, and third turns has an opening with a width larger in a first direction than in a second direction orthogonal to the first direction. The width of the opening of the second turn in the second direction is larger than a width of the opening of the first turn in the second direction. The width of the opening of the third turn in the second direction is larger than the width of the opening of the second turn in the second direction and smaller than a width of the opening of the first turn in the first direction.

Abstract: Disclosed herein is a coil component that includes a first coil, and a second coil disposed so as to surround the first coil. The first coil includes a first section extending in a first direction, a second section extending in a second direction orthogonal to the first direction, and a third section positioned between the first and second sections. Gaps between the first, second, and third sections of the first coil and the second coil as viewed in a coil axis direction have a first width, a second width, and a third width, respectively. The second width is larger than the first width and smaller than the third width.

Abstract: Disclosed herein is an antenna module that includes a substrate on which a first coil is provided, a base material on which a second coil and a magnetic sheet overlapping the second coil are provided, and an adhesive layer bonding the substrate and the base material such that the first coil and the magnetic sheet overlap each other.