180results about "Loop antennas with ferromagnetic core" patented technology

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.

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.

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.

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.

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

Systems and apparatuses for near field communication with a receiver. An apparatus may include an antenna and one or more antenna printed circuit boards. The antenna may include first conductors in a first antenna layer and second conductors in one or more second antenna layers. A current supplied to the antenna may pass through the first conductors in a direction opposite to a direction through which the current passes through the second conductors. A system may include the apparatus and the receiver, which may include a receiver coil. The opposite directions through which the current passes through the first and second conductors may be substantially perpendicular to a longitudinal axis of the receiver coil. The antenna may generate a substantial magnetic flux that is a direction corresponding to the longitudinal axial of the receiver coil, which may be oriented parallel to a flat surface of the antenna.

SOLUTION: A method includes receiving a first signal from a first loop antenna, and receiving a second signal from a second loop antenna. The method includes sampling the first signal and the second signal at a sampling rate high enough to capture an entire frequency range associated with a plurality of radio sources to generate a first digital signal and a second digital signal. The method includes converting the first digital signal and the second digital signal to a frequency domain representation. The method also includes generating, based on the frequency domain representation, a first bearing estimate for a radio source of the plurality of radio sources by comparing the relative amplitudes and phases of the first digital signal and the second digital signal represented in the frequency domain.EFFECT: The systems and methods provide a redundant navigation tool that can be used in the case of failures in other navigation systems like GPS or inertial navigation systems.SELECTED DRAWING: None

An antenna comprising a magnetic core (1) and a coil (2) wound around the magnetic core (1), the magnetic core (1) comprising at least two first subcores (1.1) and at least one second subcore (1.2), the at least two first subcores (1.1) being arranged one behind the other in a longitudinal direction (8) of the magnetic core (1), each of the at least two first subcores (1.1) having a lateral side, the at least two first subcores (1.1) comprising a first first subcore (1.1) and a second first subcore (1.1), the at least one second subcore (1.2) comprising a first second subcore (1.2) being arranged on the lateral side of the first first subcore (1.1) and on the lateral side of the second first subcore (1.1) such that the first second subcore (1.2) is at least partially connected to the first first subcore (1.1) and at least partially to the second first Subcore (1.1) overlaps.

An integrated antenna and tether structure includes (i) a core including a first dielectric material, (ii) a first layer including a second dielectric material and a first conductive material thereon, the first layer wrapped around at least a section of the core, (iii) a plurality of wires including a second conductive material and wrapped around at least a section of the first layer, (iv) a second layer including a third dielectric material and a third conductive material thereon, the second layer wrapped around at least a section of the plurality of wires, and (v) an outer layer comprising a fourth dielectric material, the outer layer wrapped around at least a section of the second layer. In an example, the antenna structure is to transmit signals at a frequency of at most 50 Megahertz (MHz).

In this specification, an EAS monitoring system is illustrated and described. The EAS monitoring system includes a ferrite EAS antenna disposed adjacent to a support surface of a monitoring area. The EAS antenna is disposed in a substantially horizontal orientation with respect to the ground. The EAS antenna can be surrounded or covered by a shroud for hiding the EAS antenna.