Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.

Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.

Abstract: An antenna device includes a ground element configured to be grounded, a first antenna to be connected to a radio communication module, and a second antenna configured to be parasitic on the first antenna, the second antenna receiving no power feed.

Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.

Abstract: An antenna device includes an antenna element to be fed with electric power from an external power supply and a ground element to be coupled to the antenna element. The antenna element and the ground element are formed of a conductive film and arranged to define a rectangular region in a plan view with at least one gap between the antenna element and the ground element. The antenna element has a shape of one of a polygon, a circle, and a part of the polygon or the circle. The antenna element includes a feeding part in its portion close to the ground element.

Abstract: An antenna device includes a substrate; a first ground element that is arranged on the substrate; an antenna element that is arranged on the substrate and extends from its first end positioned near a side edge of the first ground element to its second end positioned away from the side edge; and a non-feed element that is arranged on the substrate, connected to the first ground element, and insulated from the antenna element. The non-feed element extends from its first end portion positioned near the side edge of the first ground element to a bending portion in a direction away from the side edge and extends from the bending portion to its second end portion along the side edge. A portion between the bending portion and the second end portion of the non-feed element intersects with the antenna element.

Abstract: An antenna device to be inserted in a memory card slot of an electronic device, includes an insulating layer, an antenna element formed on one surface of the insulating layer, and a ground element formed on the other surface of the insulating layer, the antenna element and the ground element being formed such that at least a part of the antenna element and at least a part of the ground element protrude from the memory card slot of the electronic device when the antenna device is inserted in the memory card slot, respectively; and a ground pattern extending in parallel relationship with the antenna element to be electrically connected to at least the ground element.

Abstract: A disclosed memory card having a built-in antenna and being connected to an electronic apparatus includes a circuit board configured to be covered by a case, an antenna element formed on one surface of the circuit board or on one surface of a board mounted on the circuit board, and a ground element formed on another surface of the circuit board or on another surface of the board mounted on the circuit board, wherein a part or all of the antenna element and a part or all of the ground element are formed to protrude outside the electronic apparatus when the memory card is connected to the electronic apparatus.

Abstract: An antenna device includes a substrate; a first ground element that is arranged on the substrate; an antenna element that is arranged on the substrate and extends from its first end positioned near a side edge of the first ground element to its second end positioned away from the side edge; and a non-feed element that is arranged on the substrate, connected to the first ground element, and insulated from the antenna element. The non-feed element extends from its first end portion positioned near the side edge of the first ground element to a bending portion in a direction away from the side edge and extends from the bending portion to its second end portion along the side edge. A portion between the bending portion and the second end portion of the non-feed element intersects with the antenna element.

Abstract: An antenna device includes a T-shaped element having a first end part, a second end part, and a third end part, the first end part being a feeding point, the T-shaped element being bifurcated at an intermediate point; and a stub having one end connected between the intermediate point and the second end point and another end connected to ground, the stub forming a ?-shaped configuration with the T-shaped element; wherein a length of a first line between the first end part and the second end part is longer than a length of a second line between the first end part and the third end part; and the length of the first line and the length of the second line correspond to a first resonance frequency and a second resonance frequency.

Abstract: A disclosed memory card having a built-in antenna and being connected to an electronic apparatus includes a circuit board configured to be covered by a case, an antenna element formed on one surface of the circuit board or on one surface of a board mounted on the circuit board, and a ground element formed on another surface of the circuit board or on another surface of the board mounted on the circuit board, wherein a part or all of the antenna element and a part or all of the ground element are formed to protrude outside the electronic apparatus when the memory card is connected to the electronic apparatus.

Abstract: A disclosed antenna device includes a ground part, a first stub connected to the ground part, a first inverted-F antenna element including a first power feeder, a second stub connected to the ground part, and a second inverted-F antenna element including a second power feeder, wherein the ground part has a linear part between a first connecting part between the first stub part and the ground part and a second connecting part between the second stub part and the ground part.

Abstract: An antenna apparatus includes a housing made of a conductive material and having a slot formed in a first surface, and an antenna disposed in the housing. The longitudinal direction of the slot is oriented at a predetermined angle with respect to the longitudinal direction of the antenna.

Abstract: A disclosed antenna device includes a substrate made of a dielectric material, an antenna element formed on one side of the substrate, and a ground element formed on another side of the substrate.

Abstract: A disclosed antenna device includes a ground element configured to be grounded, a first antenna to be connected to a radio communication module, and a second antenna configured to be parasitic on the first antenna, the second antenna receiving no power feed.

Abstract: An antenna device includes a T-shaped element having a first end part, a second end part, and a third end part, the first end part being a feeding point, the T-shaped element being bifurcated at an intermediate point; and a stub having one end connected between the intermediate point and the second end point and another end connected to ground, the stub forming a ?-shaped configuration with the T-shaped element; wherein a length of a first line between the first end part and the second end part is longer than a length of a second line between the first end part and the third end part; and the length of the first line and the length of the second line correspond to a first resonance frequency and a second resonance frequency.

Abstract: An antenna apparatus includes a dielectric substrate having first and second rectangular regions on a surface of the dielectric substrate, an antenna element formed inside the first rectangular region, and a ground element formed inside the second rectangular region, the ground element having a proximity side positioned proximate to and along a borderline between the first and second rectangular regions. The antenna element includes a first elongation extending from a first end to a second end, the first end including a power feed part positioned proximate to a side edge of the proximity side, the second end being positioned proximate to an upper side of the first rectangular region facing the borderline, a second elongation extending from the second end in a direction along the upper side, and a stub part extending from the second end in a direction opposite to the extending direction of the second elongation.

Abstract: An antenna device includes an antenna element to be fed with electric power from an external power supply and a ground element to be coupled to the antenna element. The antenna element and the ground element are formed of a conductive film and arranged to define a rectangular region in a plan view with at least one gap between the antenna element and the ground element. The antenna element has a shape of one of a polygon, a circle, and a part of the polygon or the circle. The antenna element includes a feeding part in its portion close to the ground element.

Abstract: The present invention is a CardBus PC Card corresponding to a CardBus and having a CardBus connector, characterised in that it has a device corresponding to a PCI bus, having a specified function and having a first configuration space which corresponds to a PCI bus, and an interface circuit located between the device corresponding to a PCI bus and the CardBus connector, and having a second configuration space which corresponds to the CardBus, the first and second configuration spaces comprising a configuration space which corresponds to a CardBus. The above-mentioned present invention makes it possible to configure a PC Card complying with a CardBus and having the configuration space which is required for a CardBus.

Abstract: A sensing device for measuring electric current and electric power including a plurality of magneto-electric transducers for detecting a magnetic field about a conductor carrying the electric current. The magneto-electric transducers can include Barber-Pole type elements, each element being positioned on a substrate at approximately the same distance from the central point of a substrate.