216results 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.

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.

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

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 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

In an antenna module 10, a supporting member 20 has an outer wall 24 and an inner wall 26 which form an accommodation groove 22. A main portion 42 of the coil 40 is accommodated in the accommodation groove 22 of the supporting member 20 at least in part. End portions of the coil 40 are connected to an FPC 50. A lead portion 54 of the FPC 50 is laid out to an outside of the supporting member 20. The supporting member 20 has a first flange portion 281 protruding from the outer wall 24 in a first orientation and a second flange portion 283 protruding from the outer wall 24 in a second orientation. A part of the main portion 42 of the coil 40 is located under each of the first flange portion 281 and the second flange portion 283 when viewed from above. A magnetic sheet 60 is attached to an upper part of the outer wall 24 so that the magnetic sheet 60 covers partly the main portion 42 of the coil 40.

Provided according to an embodiment is a vehicle-mounted antenna system. The antenna system may comprise: a circuit board; an antenna configured to have an aperture region corresponding to the inside of a metal pattern above the circuit board and be fixed to the circuit board through a short portion; and a coupling feed portion configured to be connected to the circuit board and radiate a signal to the aperture region.

To reduce the size of a through hole provided in a metal plate in an antenna device applicable to an IC card.SOLUTION: An antenna device 1 includes a metal plate having a first through hole 43, a first coil pattern 110 whose opening 110a overlaps with the first through hole 43 and that winds around along the first through hole 43, and a second coil pattern 120 connected to the first coil pattern 110 and winding around along an outer edge 49 of a metal plate 40. The first through hole 43 has a first edge 431 located in a +Y direction as viewed from the center of the first through hole 43, and a second edge 432 located in a -Y direction as viewed from the center of the first through hole 43. The first and second edges 431 and 432 have first and second protruding portions 431A and 432A, respectively, that protrude toward the center of the first through hole 43 and have tips that overlap with the winding region of the first coil pattern 110.SELECTED DRAWING: Figure 9

Disclosed herein is a coil component that includes a first coil wound about a first coil axis, a second coil having one end connected to one end of the first coil and wound about a second coil axis, and a third coil having one end connected to the other end of the first coil and wound about a third coil axis. The line lengths of both the second and third coils are shorter than the line length of the first coil, and the inside area of the second coil and the inside area of the third coil do not overlap each other.

The present disclosure is directed to an NFC wireless charging system for electronic devices. 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 the coil antenna charging the power receiver is inserted into the coil antenna of the charging transmitter, or vice versa.

To reduce the size and weight of an antenna coil.SOLUTION: An antenna coil 100 comprises: a core 110 that comprises a plurality of soft magnetic material plates arranged so as to be mutually stacked and each having a saturation magnetic flux density equal to or more than 500 mT; and a coil 120 arranged so as to be wound around the core 110.SELECTED DRAWING: Figure 1

To provide a compact antenna with high transmission and reception efficiency for low-frequency radio signals, which have good permeability through bedrock, on a radio detonator.SOLUTION: A radio detonator 10 has an antenna 20 that transmits and receives radio signals and receives driving energy via a radio method. The radio detonator 10 has an operating capacitor 12e that stores energy received by the antenna 20 and a detonation capacitor 12f. The radio detonator 10 has an electric detonator 15 that detonates using electricity from the detonation capacitor 12f. The antenna 20 has a first coil 21, which is electrically connected to a receiving circuit, a transmitting circuit, and the operating capacitor 12e, and is wound with a first number of turns. The antenna 20 has a second coil 22, which is provided adjacent to and substantially coaxially with the first coil 21 and is wound with a second number of turns greater than the first number of turns. The antenna 20 has a resonant capacitor 23 electrically connected to the second coil 22.SELECTED DRAWING: Figure 3