344results about "Loop antennas with ferromagnetic core" patented technology

Sonde devices for providing magnetic field signals for use with utility locators or other devices are disclosed. In one embodiment a sonde device includes a housing, a core comprising a plurality of core sections, and one or more support structures, which may include windings. Circuit and / or power supply elements may be disposed fully or partially within the core to control generation of predefined magnetic field frequencies and waveforms.

An electronic device according to an embodiment includes: a display panel; a touch electrode layer disposed on the display panel and comprising at least one touch electrode; and a conductive wire disposed on the display panel, disposed on the same layer as the touch electrode layer, and generating a magnetic field signal for driving a stylus pen.

A power reception device includes: a housing including a first surface facing in a first direction, a second surface facing in a second direction opposite to the first direction, and a side surface surrounding a space between the first surface and the second surface; a coil antenna wound in a circle; a shielding sheet disposed over the coil antenna; and a first magnet and a second magnet adjacent to an outermost coil of the coil antenna and disposed to be spaced apart from the outermost coil. The first magnet is disposed so that a portion of magnetism induced by the first magnet is formed in the first direction. The second magnet is disposed so that a portion of the magnetism induced by the second magnet is formed in a third direction that is an outside direction from a center of the coil antenna.

The invention relates to the technical field of magnetic communication, in particular to a parallel multi-coil magnetic antenna and a transmitting magnetic communication system.The structure of the magnetic antenna is improved, a plurality of coils are wound on a magnetic core in parallel or in an overlapped mode, and the two ends of each coil are provided with connecting ends used for being connected with a signal driving circuit; the length and winding turns of each coil are the same, so that the size of the antenna is greatly reduced on the premise of not reducing the performance of the antenna; the magnetic antenna structure is applied to a magnetic communication transmitting antenna and a geomagnetic transmission communication system so as to realize geomagnetic transmission communication and positioning. Through the structural design of the parallel multi-coil closely-wound magnetic core, the effects of small inductance, multiple turns and large current of the transmitting coil in the earth-penetrating communication can be realized, and the application deployment on miniaturized portable earth-penetrating communication equipment is met.

An electronic device according to an embodiment includes: a display panel; a touch electrode layer disposed on the display panel and comprising at least one touch electrode; and a conductive wire disposed on the display panel, disposed on the same layer as the touch electrode layer, and generating a magnetic field signal for driving a stylus pen.

Proposed is an antenna module in which a partial area, which overlaps with a magnet mounted on an antenna sheet, of the entire area of a shielding sheet is punched out to prevent the shielding sheet from being magnetically saturated (magnetized) by the magnet. The proposed antenna module comprises: the antenna sheet having a radiation pattern formed thereon and having a magnet array formed along the outer circumference of the radiation pattern inserted thereto; and the shielding sheet laminated on the antenna sheet, and having an anti-overlapping hole formed in the area overlapping with the magnet array.

To provide an antenna module having a desired configuration and desired antenna characteristics.SOLUTION: In an antenna module 10, a support member 20 has an outer wall 24 and an inner wall 26 that constitute an accommodating groove 22. A main part 42 of a coil 40 is at least partially accommodated in the accommodating groove 22 of the support member 20. An end part 44 of the coil 40 is connected to an FPC 50. A pull-out part 54 of the FPC 50 is pulled out to the outside of the support member 20. The support member 20 has a first flange part 281 protruding from the outer wall 24 toward a first direction and a second flange portion 283 protruding from the outer wall 24 toward a second direction. A portion of the main part 42 of the coil 40 is positioned below the first flange part 281 and the second flange part 283 in a top view. A magnetic sheet 60 is attached to an upper portion of the outer wall 24 so as to partially cover the main part 42 of the coil 40.SELECTED DRAWING: Figure 1

The present disclosure relates to an NFC wireless charging system for an electronic device. The system includes a power transmitting device having a charging transmitter and a power receiving device having a charging receiver. Each of the charging transmitter and the charging receiver implements a coil antenna design in which a coil antenna that charges the power receiver is inserted into a coil antenna of the charging transmitter and vice versa.

According to various embodiments, a cover device capable of being coupled to a wireless power-receiving unit comprising circuitry configured to receive wireless power from a wireless power-transmitting unit comprising circuitry may comprise: a first capacitor; a first coil connected to the first capacitor; a ferrite sheet arranged, on at least a portion of the first coil, in the coupling direction between the wireless power-receiving unit and the cover device; and a metal sheet arranged, on at least a portion of the ferrite sheet, in the coupling direction between the wireless power-receiving unit and the cover device. The first capacitor and the first coil can form a closed loop. A first resonance frequency of the first coil can be higher than a second resonance frequency of a second coil of the wireless power-receiving unit.

This disclosure relates to a medical device for diagnosis or treatment of tissue within a patient, comprising an elongate member having a lumen extending between proximal and distal ends, a coil disposed around the elongate member, and a magnetic core of high-permeability material positioned at least partially within the coil and extending axially beyond at least one of the proximal or distal coil ends. The axial extension of the magnetic core beyond the coil end focuses the magnetic field at a target region to enhance sensing or therapeutic field delivery. The device is suited for endovascular or intraluminal procedures.

According to an embodiment of the present invention, an antenna package and an image display device are provided. The antenna package includes an antenna unit having a radiation pattern, a transmission line extending from the radiation pattern, and an antenna ground pad arranged around the transmission line, and a circuit board electrically connected to the antenna unit. The circuit board includes: a core layer; a circuit wiring layer arranged on one surface of the core layer, the circuit wiring layer including a signal transmission wiring electrically connected to the transmission line of the antenna unit and a first ground pattern bonded to the antenna ground pad; and a ground layer arranged on an opposite surface of the core layer opposite to the above-mentioned one surface. In a plan view, the ground layer does not overlap with a portion of the antenna ground pad outside the area bonded to the first ground pattern.

A medical device is configured for diagnosis or treatment of a tissue within a body. The medical device comprises an elongate member and a position sensor. The elongate member is configured to be received within the body, and has a lumen extending between a proximal end and a distal end. The position sensor is disposed within the lumen proximate the distal end of the deformable member. The position sensor comprises a coil wound to form a central passage and configured to generate a current flow when subject to a magnetic field, and a high-permeability antenna having at least a portion disposed outside the central passage to concentrate the magnetic field into the coil and increase the current flow.

An electronic device is provided. The electronic device includes a housing including a first plate facing a first direction and a second plate facing a second direction opposite to the first direction, and forming a space between the first plate and the second plate, a display disposed inside the housing and exposed through the first plate, a first printed circuit board disposed between the display and the second plate, a second printed circuit board disposed between the display and the second plate, a third printed circuit board which is disposed between the display and the second plate and electrically connects the first printed circuit board and the second printed circuit board, and a first antenna coupled to the first printed circuit board, wherein the third printed circuit board may include a second antenna electrically connected to the first antenna.

An antenna substrate includes a substrate including a first main surface and a second main surface, and a coil including a first portion supported on the first main surface, and a second portion supported on the second main surface. A communicating portion is formed in the substrate. The communicating portion communicates the first main surface with the second main surface. The first portion and the second portion are electrically connected to each other, through the communicating portion. A winding direction of the first portion and a winding direction of the second portion are identical, when viewed from a direction along a normal line of the first main surface or a normal line of the second main surface.

An electronic device may include a substrate and a wireless communication circuit. The substrate may include a housing, a ground area, a first conductive pattern, a second conductive pattern, and a third conductive pattern. The housing may include a conductive portion. The first conductive pattern is electrically connected to the conductive portion. The second conductive pattern is electrically connected to the ground area. The first conductive pattern electrically connects the conductive portion to the ground area. The wireless communication circuit is configured to supply power to the conductive portion through the first conductive pattern. The second conductive pattern may include a closed loop shape. The second conductive pattern is at least partially located between at least the first conductive pattern and the third conductive pattern.

Embodiments of the present application provide a wireless communication structure, a display panel, and a wireless communication apparatus. The wireless communication structure includes: a loop structure including a first connection end, a second connection end, and a coil body, at least a part of the coil body is connected between the first connection end and the second connection end; the antenna includes a millimeter-wave antenna unit configured to transmit and / or receive wireless signals in millimeter-wave band, and the millimeter-wave antenna unit is connected to the coil body. In an embodiment of the present application, the millimeter-wave antenna unit is connected to the coil body, so that not only a plurality of wireless communication modules can be arranged in a limited space, but also a desired optical performance of the display panel can be ensured.

According to an embodiment of the present invention, an antenna package and an image display device are provided. The antenna package includes an antenna assembly and a flexible printed circuit board. The antenna assembly includes a dielectric layer, a first antenna element disposed on the dielectric layer, and a second antenna element disposed on the dielectric layer and physically and electrically separated from the first antenna element. The flexible printed circuit board is coupled to the antenna assembly to electrically connect to the first antenna element and electrically separate from the second antenna element.

An antenna arrangement and a method for operating an antenna arrangement The invention relates to an antenna arrangement, wherein the antenna arrangement (1) comprises a voltage source (3), a first inductive antenna element (L1), a second inductive antenna element (L2) and at least one capacitive element (C), wherein the voltage source (3) is electrically connected in parallel to a series connection of a first circuit section comprising at least the first inductive antenna element (L1) and a further circuit section comprising a parallel connection of a first subsection of the further circuit section comprising the at least one capacitive element (C) and a further subsection of the further circuit section comprising at least the second inductive antenna element (L2), and a method of operating an antenna arrangement.

A flexible RFID wire tag includes an RFID chip and an associated antenna formed of a deformable filament. The antenna may be helically shaped and deformable from an initial helical configuration to an expanded helical configuration having a greater diameter. An object or a portion of an object is positioned within an open interior of the helical antenna and then the antenna is returned from the expanded configuration to the initial configuration to cause the antenna to contact and grip the object. In another aspect, first and second ends of the antenna are secured to an object, with the filament being configured to deform and / or vibrate upon being subjected to a stimulus so as to modify at least one operational parameter of the antenna. Such a deformable filament may be helical or may be differently configured, such as to be incorporated into a cardboard ticket.

In one embodiment, a method implemented by an electromagnetic imaging system for imaging material within a metal container, the method comprising: transmitting to. and receiving signals from, a plurality of antennas attached to an interior wall of the metal container, the signals delivered over a plurality of channels, each of the plurality of antennas comprising a ferrite loaded, shielded half-loop antenna; measuring a plurality of scattering parameters (S-parameters) for all of the plurality of channels; calibrating the measurements; and providing an image of the material using an inversion algorithm based on the calibrated measurements.

An electronic device according to an embodiment includes: a display panel; a touch electrode layer disposed on the display panel and comprising at least one touch electrode; and a conductive wire disposed on the display panel, disposed on the same layer as the touch electrode layer, and generating a magnetic field signal for driving a stylus pen.

Disclosed is an antenna apparatus including a radio frequency (RF) antenna, a magnetic induction (MI) antenna disposed within the RF antenna, and electronic circuitry to receive and process audio received from at least one of the RF antenna and MI antenna.

An antenna device is provided with: a base (4b) having a mounting part (pad (16a)); and a chip electronic component (capacitor chip (12)). The pad (16a) has at least one pair of mounting terminals (16c) for mounting the capacitor patch (12). The base (4b) has a concave-convex portion (20) formed at an edge portion (4g) of the opening (4e). The concave-convex portion (20) is composed of a concave portion (21) and a convex portion (22), and protrudes and is recessed at an edge portion (4g) of the opening portion (4e) in an arrangement direction of the paired mounting terminals (16c). The projection (22) defines a mounting space for at least one pair of terminals (12a) of the capacitor patch (12) at a position facing the paired mounting terminals (16c).

An electronic device is provided. The electronic device includes first and second printed circuit boards (PCBs); a flexible PCB (FPCB) connecting the first and second PCBs; and an antenna module between the first and second PCBs. The antenna module includes: a first pattern layer provided on a first substrate surface and forming a first coil pattern; a second pattern layer provided on a second substrate surface and forming a second coil pattern; an overlapping area in which the FPCB is provided between portions of the second pattern layer; and a plurality of pattern areas in which the portions of the second coil pattern are respectively provided.

This invention discloses an antenna module in which a portion of a shielding sheet overlapping with a magnet mounted on the antenna sheet is punched out to prevent the shielding sheet from being magnetically saturated (magnetized) by the magnet. The disclosed antenna module includes: an antenna sheet having a radiating pattern formed thereon and a magnet array formed and inserted along the outer periphery of the radiating pattern; and a shielding sheet laminated on the antenna sheet and having anti-overlap holes formed in the region overlapping with the magnet array.

To provide a capacitive resonant stylus pen capable of generating a sufficient output signal.SOLUTION: An electronic device according to an embodiment includes: a display panel; a touch electrode layer disposed on the display panel and comprising at least one or more touch electrodes; and a conductive wire disposed on the display panel, disposed on the same layer as the touch electrode layer, and generating a magnetic field signal for driving a stylus pen.SELECTED DRAWING: Figure 95