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Loop Antenna patents

      

This page is updated frequently with new Loop Antenna-related patent applications.




 Loop antenna for portable remote control device patent thumbnailLoop antenna for portable remote control device
A remote control device includes a first loop antenna portion in the form of a printed metallic trace on a first side of a printed circuit board (pcb) and a second loop antenna portion in the form of a raised metallic structure on a second side of the pcb. The first and second loop antenna portions are connected together through the pcb to form a loop antenna..
Lear Corporation


 Wireless portable electronic device having a conductive body that functions as a radiator patent thumbnailWireless portable electronic device having a conductive body that functions as a radiator
An apparatus, such as a wireless portable electronic device, is provided that includes a body formed of a conductive material. The body defines an internal cavity and an opening.
Nokia Technologies Oy


 Multi-frequency radio frequency identification tag patent thumbnailMulti-frequency radio frequency identification tag
Embodiments described herein provide various designs of multi-frequency radio frequency identification (rfid) tags which are compact in size and tamper-proofing. In one aspect, a proposed multi-frequency rfid tag includes both a high frequency (hf) subsystem and an ultra high frequency (uhf) subsystem.
Neology, Inc.


 Fuze setting apparatus patent thumbnailFuze setting apparatus
An electronic fuze system comprising a fuze setter (110) and electronic fuze (112), wherein signals are transmitted between the fuze setter (110) and the electronic fuze (112) by a radio-frequency electromagnetic coupling link which facilitates data transmission via a wireless communication standard between a first induction-loop antenna (116) and a second induction-loop antenna (118) driven by the electronic fuze.. .
Bae Systems Plc


 Antenna device and electronic apparatus patent thumbnailAntenna device and electronic apparatus
An antenna device incorporated in an electronic apparatus to communicate with an external apparatus via an electromagnetic field signal includes a first conductor provided inside a housing of the electronic apparatus and opposing the external apparatus, a loop antenna having an antenna coil conductively coupled to the external apparatus and coiling thereon, a sheet-like second conductor provided as being spaced with a predetermined space from the first conductor and partially overlapping or making contact with a surface of the loop antenna opposite to a surface opposing the external apparatus, and a sheet-like third conductor provided between the first conductor and the second conductor and having one end overlapping or making contact with the first conductor and other end partially overlapping or making contact with the second conductor.. .
Dexerials Corporation


 Antenna device and antenna manufacturing method patent thumbnailAntenna device and antenna manufacturing method
The present invention is characterized by an antenna device including: a circuit board; a circuit pattern formed by a conductor on a surface of the circuit board; and a minute loop antenna mounted on the circuit board and formed in a loop shape by a conductor having two end portions, wherein the circuit pattern includes at least a feeder circuit configured to supply power to the minute loop antenna, and a ground, and the minute loop antenna is mounted on the circuit board such that: the conductor having the two end portions is connected at one end thereof to the feeder circuit and connected at another end thereof to the ground; a loop surface of the conductor having the two end portions is perpendicular to a plane on which the circuit pattern is formed; and a normal line passing through the loop surface does not pass through the circuit pattern.. .
Mitsubishi Electric Corporation


 Loop antenna and radio frequency tag patent thumbnailLoop antenna and radio frequency tag
A loop antenna includes first and second conductors configured to have conductivity, the first conductor including first and second patterns, the first pattern being provided along a first surface and including a first feed point, and the second pattern being coupled to the first pattern at a first end of the first surface and being provided to oppose the first pattern; and a second conductor configured to have conductivity, the second conductor including third and fourth patterns, the third pattern being provided on the first surface with a gap generating a capacitance between the first pattern and including a second feed point, the fourth pattern being electrically coupled to the third pattern at a second end opposing the first end on the first surface, the fourth pattern overlapping the second pattern so as to cause capacitive coupling or being connected to the second pattern.. .
Fujitsu Limited


 Chassis nfc antenna booster patent thumbnailChassis nfc antenna booster
A communication device used for near filed communications (nfc). The device includes circuitry that generates a differential signal for communication with an analog front end of the device.
Broadcom Corporation


 Electronic device with housing slots for antennas patent thumbnailElectronic device with housing slots for antennas
An electronic device housing may have a rear housing wall that forms a metal ground plane. A slot may be formed in the metal ground plane.
Apple Inc.


 Wireless communication device and article provided with communication device patent thumbnailWireless communication device and article provided with communication device
A wireless communication device includes a loop antenna that wirelessly communicates with a device of another party through an occurrence of an eddy current, a parallel inductor connected in parallel to the loop antenna, and a wireless ic element that is connected to the parallel inductor and that processes a transmission/reception signal. At least the parallel inductor and the wireless ic element provide a predetermined resonant frequency..
Murata Manufacturing Co., Ltd.


High-speed wireless serial communication link for a stacked device configuration using near field coupling

In various embodiments, a memory module houses memory devices and, in some embodiments, a memory controller. Each of the devices has a near-field interface coupled to loop antennas to communicate over-the-air data.
Micron Technology, Inc.

Loop antenna fixtures and methods

Various loop antenna fixture embodiments are disclosed. The fixture can be configured to removably attach with other fixtures, thus changing the overall dimensions of an antenna wrapped around the periphery of the fixture or fixtures.
Gatekeeper Systems, Inc.

Antenna device and electronic apparatus

An antenna device and an electronic apparatus are provided that enable a smaller casing and more stable communication by effectively using a magnetic shielding effect of a metal plate, regardless of internal structure or relationship of other components in a mobile apparatus. Included therein is an antenna coil (12) bisected into one side section and another side section of a loop antenna (11) along an edge of a magnetic sheet (110) attached to an inner wall surface of a metal body (111) disposed at a distant position relative to an antenna (121) of an opposing external device.
Dexerials Corporation

Non-contact power reception non-contact charging and electronic settlement performed in a single portable terminal

A non-contact power reception apparatus is provided, in which a power reception coil for a charging system and a loop antenna for an electronic settlement system are mounted on a battery pack and a cover case of a portable terminal such that the power reception coil is arranged in the center thereof and the loop antenna is disposed outside the power reception coil, so that a mode of receiving a wireless power signal and a mode of transmitting and receiving data are selectively performed, thereby preventing interference from harmonic components and enabling non-contact charging and electronic settlement using a single portable terminal. A jig for fabricating a core to be mounted to the non-contact power reception apparatus is provided..
Hanrim Postech Co., Ltd.

Portable device and near field communication chip

In one embodiment, the antenna arrangement includes a primary antenna having a conductive sidewall; and a loop antenna disposed in and physically separated from the primary antenna. The loop antenna includes a first conductive loop and a capacitor electrically connected between ends of the first conductive loop..

Proximity sensor

A first oscillation circuit in which a helical antenna is used as a part of an element for a resonance circuit and a second oscillation circuit in which a loop antenna is used as a part of an element for a resonance circuit are caused to oscillate at substantially the same frequency. When a human body approaches the helical antenna and the loop antenna, the frequency difference between the first oscillation circuit and the second oscillation circuit increases.
Kyushu Institute Of Technology

Reader for an electronic uhf access control system

Reader for an electronic uhf access control system, wherein the reader in operation cooperates with corresponding uhf tags and is provided with a housing, in which an antenna system for creating an electromagnetic interrogation field is arranged, wherein the antenna system comprises a first antenna for generating an interrogation field with a first polarization direction, and a second antenna for generating an interrogation field with a second polarization direction, wherein the first and the second polarization directions are substantially orthogonal to each other, and wherein the first antenna is a loop antenna with an open central area, and the second antenna is an antenna of the inverted f type (ifa), which is placed in the open central area of the loop antenna.. .
N.v. Nederlandsche Apparatenfabriek "nedap"

Electronic device with near-field antenna operating through display

An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer.
Apple Inc.

Closely coupled re-radiator compound loop antenna structure

Source radio frequency energy (rf) is coupled wirelessly (no physical contact) between two compound loop (cpl) antennas or one cpl and another type of antenna across a variety of barriers such as plastic, human tissues, glass, and air. The compound coupling interface created between the two antennas is highly efficient in transferring the rf energy from a source antenna to a destination including a cpl antenna.
Dockon Ag

Antenna device and electronic apparatus

The balance between communicable regions in the x-direction and the y-direction with respect to an antenna on the side of a reader/writer that is facing in the xy-plane is improved, allowing reliable communication via an electromagnetic field signal transmitted from the reader/writer. An antenna device incorporated into an electronic apparatus and configured to communicate with an external device via an electromagnetic field signal includes an antenna coil (11a) having formed therein a loop antenna (21a) disposed on a peripheral portion of a casing surface of the electronic apparatus and having an external shape formed by bending a long side of a rectangular shape into which a coil that inductively couples to the external device is wound, thereby improving the balance between communicable regions in the x-direction and the y-direction with respect to an antenna (121) on the side of a reader/writer that is facing in the xy-plane..
Dexerials Corporation

Traveling-wave loop antenna based on metal ring cavity for generating radio frequency orbital angular momentum

A traveling-wave loop antenna based on a metal ring cavity for generating a radio frequency oam beam includes a main structure which is the metal ring cavity whose top surface has an annular slot circumferentially opened. Two openings ¼ of a perimeter of the metal ring cavity apart, are two excitation source ports of the antenna, for connecting a metal waveguide.
Zhejiang University

Electronic device with shared antenna structures and balun

An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-f antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or other dielectric substrates, internal metal housing structures, or other conductive electronic device housing structures.
Apple Inc.

System and groundwater detection and evaluation

A system for mapping a depth of an aquifer and determining the presence and salinity of water from the aquifer and methods for using the making/using the same includes a central processor. One or more horizontal loop transmitters can be coupled to the central processor, wherein said one or more horizontal loop transmitters produce a first half-sine pulse of magnetic field at a first pulse duration for measuring the resistivity of a ground surface.
The Regents Of The University Of California

Hybrid-type nfc antenna and the electronic device thereof

A hybrid-type near field communication (nfc) antenna utilized in an electronic device is provided. The hybrid-type nfc antenna includes two differential connection ports and a loop antenna device.

Low-profile loop antenna

A low-profile loop antenna includes a driven element disposed very close, in some cases within about 0.005 wavelengths (λ) or closer, to a ground plane, while maintaining sizable gain and usable feed point impedance. Width of the driven element varies along its circumference, such that two diametrically opposed portions of the driven element are wider, and therefore have lower impedance, than other diametrically opposed portions of the driven element.

Mobile device

A mobile device includes a first communication device that transmits a first transmission signal to a vehicle side, a second communication device that transmits a second transmission signal in response to an electromagnetic field received from the vehicle side, a control unit that controls the first communication device and second communication device, and a circuit board. The first communication device includes a loop antenna that is formed by a conductive wire formed on the circuit board.

Tablet capable of sensing location using electromagnetic induction and electrostatic capacitance

The present invention relates to a tablet capable of sensing a location using electromagnetic induction and electrostatic capacitance. The tablet comprises: a loop antenna, having a closed-loop shape for surrounding a sensing area, capable of sensing an electromagnetic wave emitted from an electronic pen; a first line antenna provided with a plurality of first conductive patterns, both ends of each of the plurality of first conductive patterns being located on one side of the first line antenna; a second line antenna provided with a plurality of second conductive patterns which cross the plurality of first conductive patterns in the sensing area, both ends of each of the plurality of second conductive patterns being located on the side on which the both ends of each of the plurality of first conductive patterns are located; and a control circuit for sensing a location using electromagnetic induction and electrostatic capacitance by controlling a connection relation between the plurality of first conductive patterns and the plurality of second conductive patterns.

Rfid system with an eddy current trap

An rfid antenna assembly configured to be energized with a carrier signal is disclosed. The rfid antenna assembly includes an inductive component including a loop antenna assembly, at least one capacitive component coupled to the inductive component, and an eddy current trap positioned a predetermined distance from the loop antenna assembly..
Deka Products Limited Partnership

Near field communication chip embedded in a wearable electronic device and wearable electronic device

A wearable electronic device according to example embodiments includes a display panel configured to display an image, a main board including a processor configured to control an operation of the wearable electronic device, a metal frame defining a perimeter of the wearable electronic device, the metal frame including a metal material, the metal frame having first and second terminals, the first terminal being adjacent to the second terminal with a slit therebetween, a loop antenna between the display panel and the main board, the loop antenna configured to connect to the first and second terminals of the metal frame, and a near field communication (nfc) chip configured to connect to the metal frame and the loop antenna, the nfc chip configured to perform a near field communication by transmitting or receiving an nfc signal using the metal frame and the loop antenna.. .

Rfid tag and rfid system

An rfid tag includes a base part, a loop antenna around the base part including a first antenna element and a second antenna element, and a loop-length shorter than a wavelength of a resonant frequency, and an ic chip at a first surface side of the base part. The ic chip is connected between a first terminal disposed on a first end of the first antenna element and a second terminal disposed on a first end of the second antenna element.
Fujitsu Limited

Hybrid antenna, antenna arrangement and manufacturing an antenna arrangement

According to one embodiment, a hybrid antenna is described comprising a plurality of windings wherein each winding comprises a loop antenna portion arranged in a plane and a ferrite antenna portion arranged at least partially outside of the plane.. .

Loop antenna with a magnetically coupled element

A loop antenna with a magnetically coupled element is described. In an embodiment, the loop antenna comprises a loop element that has a feed contact and a ground contact.

Loop antenna with a parasitic element inside

A loop antenna with a parasitic element inside is described. In an embodiment, the loop antenna comprises a loop element that has a feed contact and a ground contact.

Multiple input loop antenna

A multiple input loop antenna comprising one or more half-loop antennas disposed above a ground plane wherein the plane of each half loop is perpendicular to the ground plane such that the multiple input loop antenna is a three-dimensional structure and electromagnetic waves are radiated from points within the volume occupied by the antenna rather than from a two-dimensional surface. For this reason, the multiple input loop antenna can radiate levels of peak power without inducing excessive air breakdown which are relatively high compared with peak power levels of conventional antennas having comparable transverse dimensions.

Vehicle loop antenna

A vehicle loop antenna is provided and includes a watertight plate attached to a loop panel and having a plurality of watertight ribs formed on an upper surface thereof. The plurality of watertight ribs particularly limit the introduction of a liquid.

Frequency characteristic adjusting jig, antenna testing apparatus and antenna testing method, and loop antenna

A frequency characteristic adjusting jig attached to a loop antenna includes: a conductive first member which is located along an outer periphery of a loop for a portion of a conductor forming the loop antenna, and which is electromagnetically coupled or electrically connected to the portion of the conductor; a conductive second member which is located along the outer periphery of the loop for another portion of the conductor, and which is electromagnetically coupled or electrically connected to the other portion of the conductor; and a conductive third member which connects the first and second members together via a different path than a path formed along the loop. The first and second members are chosen to have a length along the loop such that a frequency characteristic of the loop antenna is shifted according to the length..
Fujitsu Limited

Dual eas-rfid security tag

A dual eas-rfid tag. In one embodiment, the invention can be a tag comprising a substrate having a first surface and a second surface opposite the first surface; an electronic article surveillance (eas) element comprising an eas antenna, the eas antenna on the first surface of the substrate; and a radio frequency identification (rfid) element, the rfid element comprising: a far field antenna on the second surface of the substrate, the far field antenna comprising a first pole portion, a second pole portion, and a connecting portion connecting the first pole portion and the second pole portion; a near field loop antenna on the second surface of the substrate, and an integrated circuit operably coupled to the near field loop antenna; wherein the far field antenna, the near field loop antenna, and the eas element are located on the substrate so as to be physically isolated from one another..
Checkpoint Systems, Inc.

Co-located locationing techniologies

A method and apparatus for a co-located radio frequency identification (rfid) device and ultrasonic device includes an rfid reader loop antenna element oriented parallel to a reflector panel. An ultrasonic emitter is disposed through an aperture in the reflector panel with a horn that extends through the loop element.
Symbol Technologies, Inc.

Multi-band loop antenna and electronic device utilizing the same

A multi-band loop antenna is provided. The antenna includes a loop radiator that operates in a low frequency band, and at least two loop radiators that operate in a high frequency band and are inserted into an inner area of the low frequency band loop radiator.
Samsung Electronics Co., Ltd.

Alford loop antennas with parasitic elements

According to one embodiment of the invention, a network device comprises a plurality of antennas comprising a first antenna, wherein the first antenna comprises: a first set of one or more elements that form an alford loop and that is configured for electrical excitation via a current transmitted over a conductive medium from a signal source and a second set of one or more elements that is configured for electromagnetic induction without contact with the conductive medium from the signal source.. .
Aruba Networks, Inc.

Electronic device for communication

To achieve a reduction of noise in a wireless system of an electronic device for communication. The electronic device for communication includes: a bottom lid; a loop antenna that forms an electromagnetic field; a communication circuit coupled to the loop antenna; a battery pack that is a metallic part; a magnetic sheet arranged between the loop antenna and the metallic part, the magnetic sheet including a protruding portion that protrudes outside an outer peripheral portion of the loop antenna; a wiring substrate arranged over the battery pack and having an ic and the like mounted thereon; and a lid with a display arranged over the wiring substrate, in which, with the outer peripheral portion of the loop antenna as a base point, a protruding amount from the base point of the protruding portion of the magnetic sheet is twice or more a wiring width of the loop antenna..
Renesas Electronics Corporation

Method for simplified closed-loop antenna tuning

A method of closed-loop antenna tuning (clat) search strategy based on maximum relative transducer gain (rtg) is proposed. A search region that account for tx input mismatch and forward voltage gain is pre-computed.
Mediatek Singapore Pte. Ltd.

Robust washable tags using a large area antenna conductor

Robust merchandise tags, patches, inlays and labels are provided for mounting on garments, fabrics, apparel accessories and other flexible merchandising materials. These are robust enough to withstand processing during manufacturing, including steps such as machine washing, stone washing and chemical treatments, while being capable of remaining on the garment, fabric or the like during inventory handling, merchandising and consumer use.
Avery Dennison Corporation

Integrated antenna, and manufacturing method thereof

An integrated antenna (1) includes: a first loop antenna (11) having a first annular antenna element (11a); and a second loop antenna (13) having a second annular antenna element (13). The second annular antenna element (13) is arranged, on a surface identical to that where the first annular antenna element (13a) is arranged, so as to surround the first annular antenna element (13a)..
Fujikura Ltd.

Self-grounded antenna arrangement

A self-grounded antenna arrangement includes a base or central portion in a first plane and a number of arm sections associated with the central portion that taper toward a respective end tip. Each arm section is adapted to form a transition from the central portion and being bent backward toward the central portion by more than 180 degrees so that its end tip approaches a first side of the central portion, at an opening in the central portion.
Gapwaves Ab

Near-field gradient probe for the suppression of radio interference

An antenna system is provided comprising first, second, and third loop antennas, each antenna having a respective loop area and spaced apart from the other antennas. The first and third antennas are configured and driven to form a first independent balanced feed point that is substantially isolated from the second antenna, which is configured to be driven from a second balanced feed point.
Raytheon Company

Electronic device with antenna having ring-type structure

Various exemplary embodiments of the present disclosure may provide an electronic device including an antenna with a ring-type structure. The electronic device includes a metal bracket and the antenna.
Samsung Electronics Co., Ltd.

Touch panel device, electronic apparatus and method

According to one embodiment, a capacitance type touch panel device which is provided on a screen of a display device and is allowed to detect a touch of a stylus is provided. The touch panel device includes a loop antenna, a sensor and a controller.
Kabushiki Kaisha Toshiba

Multiband antenna apparatus and methods

The present disclosure includes multiband antenna apparatus and methods. In one embodiment, an antenna includes a loop antenna having a first corner between a first side and a second side and a second corner between the second side and a third side, a loop fed inverted f antenna comprising the loop antenna and a first arm extending from the second corner of the loop antenna, the first arm configured in parallel with the first and second sides of the loop antenna and forming a corner proximate to the first corner of the loop antenna, and a monopole antenna coupled to the first side of the loop antenna..
Qualcomm Incorporated

Wireless electronic device with magnetic shielding layer

An electronic device may have a housing, electrical components, and other electronic device structures. A display may be mounted in the housing.
Apple Inc.

Ferrite green sheet, sintered ferrite sheet, ferrite composite sheet comprising the same, and conductive loop antenna module

Disclosed are a ferrite green sheet comprising a pattern formed in a top surface of the ferrite green sheet, a sintered ferrite sheet, a ferrite composite sheet comprising the same, and a conductive loop antenna module. The pattern comprises a plurality of grooves, each groove has a width w and a rounded shape bottom having a radius of curvature of r, wherein a ratio of w to r (w:r) is in the range of 1:0.1 to 1:0.5..
3m Innovative Properties Company



Loop Antenna topics:
  • Loop Antenna
  • Communications
  • Antenna Loop
  • Power Harvesting
  • Circuit Board
  • Dipole Antenna
  • Communication System
  • Transceiver
  • Planar Antenna
  • Planar Antennas
  • Signal Processing
  • Magnetic Resonance Imaging
  • Imaging System
  • Interventional
  • Disconnect


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    This listing is a sample listing of patent applications related to Loop Antenna for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Loop Antenna with additional patents listed. Browse our RSS directory or Search for other possible listings.


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