摘要:
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.
摘要:
A magnetic field sensor for an acceleration sensor including a cantilever beam having a free end to which a permanent magnet is attached. A pair of the magnetic sensors, each consisting of a barber-pole type magnetoresistive sensing element, are arranged opposite to and symmetrically. The cantilever is bent and the magnet is moved according to an acceleration, which is detected as outputs from the magnetoresistive sensing elements.
摘要:
An acceleration sensor including a cantilever beam having a free end to which a permanent magnet is attached. A pair of magnetic sensors, each comprising a barber-pole type magnetoresistive sensing element, is arranged in symmetrically spaced and opposed relationship and in a common plane extending parallel to the magnetic flux of the permanent magnet with respect to respective, opposite sides of the magnet. The cantilever is bent and the magnet is moved accordingly in response to an acceleration force, which is detected as outputs from the magnetoresistive sensing elements.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.