Abstract: Described herein are techniques related to near field coupling and wireless power transfers. In an implementation, a portable device may include full metallic chassis devices. The full metallic chassis devices may include a keyboard and/or trackpad that include a plastic keycap. The plastic keycap may integrate a booster component to increase near field communications (NFC) range of a coil antenna that is integrated onto a surface plane above a circuit board of a switch that is connected to the plastic keycap. In an implementation, a ferrite material is inserted between the coil antenna and the circuit board to protect the coil antenna from Eddy currents that may be induced on a metallic chassis that lie underneath the circuit board.

Abstract: Described are antenna assemblies and methods for forming antenna assemblies. An antenna assembly includes a dual polarized far-field antenna and a near-field loop antenna. The near-field loop antenna is electromagnetically coupled to the dual polarized far-field antenna. The near-field loop antenna includes two contacts for electrically connecting to a chip.

Abstract: A communication device including a ground element and an antenna element is provided. The antenna element includes a metal element. The metal element has a plurality of bends and substantially forms a loop structure with a gap. The gap is between a first open end and a second open end of the metal element. The metal element extends along an edge of the ground element and does not overlap with the ground element. The antenna element has a feeding point. A first portion of the metal element is between the feeding point and the first open end, and a second portion of the metal element is between the feeding point and the second open end. The feeding point, the first open end, and the second open end are all facing or adjacent to the edge of the ground element.

Abstract: A connector for data transmission at an interface between two apparatuses for food production, such as meat and sausage production, having a first connecting element connected to the first apparatus and being at least one first data transmission part, a second connecting element connected to the second apparatus and being at least one second data transmission part, the first data transmission part being galvanically isolated from the second data transmission part such that data transmission from the first connecting element to the second connecting element is effected in a galvanically isolated manner.

Abstract: An RFID system includes an RFID antenna assembly configured to be positioned on a product module assembly of a processing system. The product module assembly is configured to releasably engage at least one product container. A first RFID tag assembly configured to be positioned on the at least one product container. The at least one product container is configured to position the first RFID tag assembly within a detection zone of the RFID antenna assembly whenever the product module assembly releasably engages the at least one product container.

Abstract: An antenna for wideband operation comprises a planar loop element having a total-length-to-width ratio below about 50:1. In one embodiment, a plurality of planar loop elements are arranged in a Yagi array having a single active element. The dimensions of the elements are chosen to achieve substantially resistive impedance over greater than a thirty percent bandwidth and a minimum gain of 6.5 dB over isotropic response.

Abstract: The invention relates to an RFID reader having a transmitting antenna (102) and a receiving antenna (104), wherein the transmitting antenna is located a first distance (114) from the receiving antenna, wherein the transmitting antenna has transmitting antenna coils (106) situated in a first plane (108), and wherein the receiving antenna has receiving antenna coils (110) situated in a second plane (112), and having means (130, 132) for positioning an RFID document at a position located a second distance (148) from the transmitting antenna, wherein the transmitting antenna is situated between the receiving antenna and the position.

Abstract: A spatial structure having a transponder comprising a planar antenna (6) and a chip (3) connected to the antenna (6), wherein the antenna (6) is at least partially embedded in a planar thermoplastic material (5) of the spatial structure, and a cavity is provided in the thermoplastic material (5) for partial holding the chip (3), wherein a planar module (1) is provided having a non-conducting substrate (2) that cannot be laminated with the thermoplastic material, the chip (3) being able to be connected to said module by way of an electrically conducting film, wherein the film forms contact areas (4a, 4b) for connecting the ends (7, 8) of the antennas (6) to the chip (3) on the module (1), and wherein the thermoplastic material (5) is laminated together with the module (1) and the antenna (6) between two cover layers (9, 10) in sandwich fashion, the contact areas (4a, 4b) of said module being aligned with the ends (7, 8) of the antenna (6).

Abstract: The present invention relates to a strap device for a curtain or a flexible door, said straps having embedded RFID reader antenna modules and different MEMS and MOEMS sensors that make it possible to detect the direction of the objects passing through the gate and also detect the size of the objects so as to modulate the switching of the radiating elements of antennas on the basis of the position of the objects being read. The device also has embedded biosensors that measure in parallel the presence of toxic substances or materials. The device according to the invention has an LED or OLED and PHOLED display means embedded in the strap, more specifically, in a flexible material of the strap. The invention is particularly intended for the qualitative and quantitative traceability of materials passing through a logistical check gate. The device is intended for all places already having curtains with flexible straps, into which it is easily embedded. The device is suitable for all existing RFID readers.

Abstract: A spiral antenna device includes a plurality of generally polygonal loops. The polygonal loops have respective side counts that decrease progressively as a function of the loop's radial distance from a center of the antenna device. The side count may vary between loops as a multiple of a power of two.

Abstract: An antenna and a communication device thereof are provided. The antenna includes at least one ground and at least one radiating portion. The ground is disposed on a dielectric substrate, and the radiating portion includes at least one signal source and at least one closed conductor loop. The closed conductor loop has a first coupling conductor portion and a second coupling conductor portion, and the closed conductor loop has a plurality of bending portions to form a three-dimensional structure, and a first coupling gap is formed between the first and the second coupling conductor portions. The closed conductor loop further has a feeding portion and a short-circuit portion to form a second coupling gap between them. The feeding portion is electrically connected or coupled to the at least one signal source, and the short-circuit portion is electrically connected or coupled to the ground.

Abstract: A conveyor system for processing items on which radio frequency identification tags are disposed has a conveyor that conveys items through a path of travel, and an antenna disposed proximate the path of travel. Circuitry in communication with the antenna may associate RFID tag data with a package on the conveyor based on a difference signal from elements in the antenna.

Abstract: Electronic devices may be provided with antenna structures and antenna isolation element structures. An antenna array may be located within an electronic device. The antenna array may have multiple antennas and interposed antenna isolation element structures for isolating the antennas from each other. An antenna isolation element structure may have a dielectric carrier with a longitudinal axis. A sheet of conductive material may extend around the longitudinal axis to form a conductive loop structure. The loop structure in the antenna isolation element may have a gap that spans the sheet of conductive material parallel to the longitudinal axis. Electronic components may bridge the gap. Control circuitry may adjust the electronic components to tune the antenna isolation element.

Abstract: The multiple polarization loop antenna includes a circularly polarized loop antenna, which may utilize a loop electrical conductor and two signal feedpoints along the loop electrical conductor separated by one quarter of the length of the loop circumference for a signal feedpoint phase angle input difference of 90 degrees. Each of the signal feedpoints may include a loop discontinuity, so that at least one signal source coupled thereto provides circular polarization from the loop electrical conductor. The circularly polarized loop antenna provides an increase in gain and decrease in size relative to the dipole turnstile. It can provide two orthogonal polarizations from two isolated ports, and the polarizations may be dual linear or dual circular.

Abstract: The invention relates to an antenna for a radio frequency transponder comprising a flat base with a longitudinal edge, an antenna for receiving via electromagnetic coupling on the base, said edge being intended to be parallel to a binding of the booklet, said antenna comprising parallel and perpendicular coils that extend respectively parallel and perpendicular to the longitudinal edge; the transponder is characterized in that said parallel coils have close-together inter-coil spacing at least in an area of binding of the booklet with respect to the inter-coil spacing of the perpendicular coils. The invention also relates to a portable electronic object including said transponder.

Abstract: Laser etching antenna structures (AS) for RFID antenna modules (AM). Combining laser etching and chemical etching. Limiting the thickness of the contact pads (CP) to less than the skin depth (18 m) of the conductive material (copper) used for the contact pads (CP). Multiple antenna structures (AS1, AS2) in an antenna module (AM). Incorporating LEDs into the antenna module (AM) or smartcard (SC).

Abstract: Antenna apparatus and methods of use and tuning. In one exemplary embodiment, the solution of the present disclosure is particularly adapted for small form-factor, metal-encased applications that utilize satellite wireless links (e.g., GPS), and uses an electromagnetic (e.g., capacitive) feeding method that includes one or more separate feed elements that are not galvanically connected to a radiator element of the antenna. In addition, certain implementations of the antenna apparatus offer the capability to carry more than one operating band for the antenna.

Abstract: An antenna comprising a main arm comprising conductive material, wherein the main arm is connected to a signal feed, and a first coupling arm comprising conductive material, wherein the first coupling arm is electrically coupled to a ground, and wherein the first coupling arm is electrically coupled to the main arm across a first span of nonconductive material. Also disclosed is a mobile node (MN) comprising a signal feed, a ground, and an antenna comprising a main arm comprising conductive material, wherein the main arm is connected to the signal feed, and a first coupling arm comprising conductive material, wherein the first coupling arm is connected to the ground, and wherein the first coupling arm is electrically coupled to the main arm across a first span of nonconductive material.

Abstract: An integrated distributed active radiator (DAR) device includes first and second conductors disposed adjacent to each other. The conductors define curves which close on themselves to within a distance of a gap. The first conductor first end is electrically coupled to the second conductor second end across the gap. The second conductor first end is electrically coupled to the first conductor second end across the gap. At least one active element is configured to produce a self-oscillation current at a frequency f0. The self-oscillation current has a first direction in the first conductor and a second direction in the second conductor. The DAR device is configured to generate a harmonic current which has the same direction in both conductors. The DAR device is configured to efficiently radiate electromagnetic energy at a harmonic frequency and to substantially inhibit the radiation of electromagnetic energy at the frequency f0.

Abstract: A system includes at least one active energy transfer coil and a first passive energy transfer coil. The active energy transfer coil is configured to couple with a power supply. The at least one active energy transfer coil has an active coupling range. The first passive energy transfer coil is magnetically coupled to the active energy transfer coil and is located within the active coupling range. The first passive energy transfer coil has a passive coupling range. The first passive energy transfer coil is configured to provide energy to a first device located within the passive coupling range and based on energy received from the at least one active energy transfer coil.

Abstract: An improved method of loop antenna and improved loop antenna thereof are provided, the method is used to generate an antenna resonant frequency for a conformed specific communication by modifying a resonant wavelength of a basic loop antenna. The improved method of loop antenna includes the following steps: connecting a first antenna radiator to a resonant point of the basic loop antenna electrically, and using an additional length from the connected first antenna radiator additional length to increase the resonant wavelength of the basic loop antenna, in order to generate an antenna resonant frequency conformed to the specific communication system.

Abstract: An apparatus including: a central portion extending at least in a first direction on an upper surface of a dielectric substrate; a first lateral portion and a second lateral portion extending at least in a second direction, orthogonal to the first direction, on one or more side surfaces of the dielectric substrate to the upper surface of the dielectric substrate wherein the central portion provides a first conductive path between the first lateral portion and the second lateral portion; a second conductive path between the first lateral portion and the second lateral portion; and a monopole antenna element extending in the second direction.

Abstract: The present invention relates to an antenna module (45) for producing a transponder, wherein the antenna module comprises an antenna conductor arrangement disposed on a substrate surface (46) of a substrate (47) and having an antenna conductor (50) for contacting with a chip (40), wherein the antenna conductor (50) forms a first antenna part (51) having a first terminal end on a first partial area (48) of the substrate surface, and with a second terminal end extends to a second partial area (49) of the substrate surface to form a second antenna part (52), wherein antenna connection contacts (57, 61) are disposed on the respective partial areas, such that the antenna connection contacts can be brought into an overlapping position for producing an electrically conductive connection by swiveling the partial areas with respect to each other.

Abstract: An antenna device includes an antenna coil, a magnetic sheet, and a metallic member. The antenna coil is formed on a flexible base. The antenna coil is wound into a loop or a spiral in which a winding central portion is a coil opening portion. The magnetic sheet is disposed at a back surface of the flexible base. A square opening is formed in the metallic member. The antenna coil is exposed from the opening of the metallic member. A first side of the antenna coil is hidden by the metallic member and part of the coil opening portion and a second side are exposed from the opening, so that a magnetic flux links with the second side.

Abstract: An antenna device is provided. The antenna includes a feeding end, a grounding end, a loop metal portion and a protruded metal portion. The grounding end is electrically connected to a ground plane. The loop metal portion extends from the feeding end to the grounding end to form a loop antenna structure. The protruded metal portion is electrically connected to the loop metal portion, wherein the distance between the protruded metal portion and the grounding end is shorter than the distance between the protruded metal portion and the feeding end.

Abstract: Described herein are techniques related to near field coupling and wireless power transfers. For example, a coil antenna configuration is the same in all portable devices; however, when the portable devices are arranged in back to back position with one another, the coil antenna configuration defines a dissymmetric and antenna configuration.

Abstract: An antenna device includes a planar conductor, a coiled antenna element, and a feed coil. The feed coil includes a coil conductor wound around a magnetic core. The planar conductor includes a ground conductor provided with a printed wiring substrate. In a portion of a circumferential portion of the planar conductor, a coupling portion is provided and defined by an aperture and a slit. In a planar view of the antenna element, at least a portion of the coil aperture of the feed coil and a portion of the aperture overlap with each other. In addition, at least a portion of the coil aperture of the feed coil and a portion of the coil aperture of the antenna element overlap with each other.

Abstract: A vertical split ring resonator antenna is disclosed, comprising a substrate having an upper surface and lower surface, an interdigitated capacitor coupled to the upper surface of the substrate and ground coupled to the lower surface. The interdigitated capacitor includes a first planar segment and a second planar segment, each having interdigitated fingers that are separated by a gap disposed between the first planar segment and second planar segment. The interdigitated capacitor is coupled to the substrate to form a vertical split ring resonator.

Abstract: An electronic device is provided. The electronic device includes a conductive housing, a first antenna element, a second antenna element and an insulation structure. The first antenna element is disposed in the conductive housing. The second antenna element is disposed on an external surface of the conductive housing and is opposite to the first antenna element. The conductive housing generates a first current in response to the operation of the second antenna element. The insulation structure penetrates through the conductive housing and extends from at least one side of the conductive housing to the second antenna element. The conductive housing generates an induction current in response to the operation of the first antenna element. The insulation structure blocks the induction current so that the conductive housing generates a second current, and a direction of the first current is the same as a direction of the second current.

Abstract: An antenna formed on a semiconductor structure having a substrate with electrical circuits thereon operationally related to the functionality of an antenna and one or more metallic structures formed by a through silicon via, microbump, copper pillar, or redistribution layer proximate to the substrate. The one or more metallic structures form a radiating element of the antenna. Exemplary antennas thus formed can include a slot antenna, a WLAN slot antenna, a planar invented F antenna (PIFA), a spiral antenna, a dipole antenna, a Yagi antenna, a planar dipole antenna, a vertical dipole antenna, a patch antenna, a helical antenna, a loop patch antenna, and combinations thereof.

Abstract: An antenna apparatus includes: a ground substrate; and a loop antenna having first and second polarized wave surfaces, which are perpendicular to the substrate. The substrate provides an antenna, which is excited and vibrated together with the loop antenna. The antenna has a first polarized wave component in parallel to the first polarized wave surface and a second polarized wave component in parallel to the second polarized wave surface. A polarized wave ratio between the first polarized wave component and the second polarized wave component in the substrate is substantially equal to a polarized wave ratio between the first polarized wave surface and the second polarized wave surface in the loop antenna.

Abstract: In antenna device, a coil conductor of an antenna coil module and a conductor layer at least partially overlap. A current flows in the conductor layer to block a magnetic field generated by a current flowing in the coil conductor. A current, which flows around the periphery of an opening of the conductor layer, flows along the periphery of a slit and around the periphery of the conductor layer due to a cut-edge effect. Since magnetic flux does not pass through the conductor layer, magnetic flux attempts to bypass the conductor layer along a path in which the conductor opening of the conductor layer is on the inside and the outer edge of the conductor layer is on the outside. As a result, the magnetic flux generates relatively large loops that link the inside and the outside of a coil conductor of an antenna on a reader/writer side.

Abstract: Technologies for a wide-band linked-ring antenna element covering two adjacent K-band military and/or commercial receive bands are provided. The antenna element comprises a linked-ring conductive resonator that is electromagnetically coupled to at least one feed line. The conductive resonator and feed line are further surrounded by a Faraday cage that is conductively coupled to an electromagnetically-shielding ground plane and operable to shield the conductive resonator and the feed line.

Abstract: The present invention relates to the field of data transmission. In one form, the invention relates to the transmission and/or reception of data modulated signals between various devices, including loads and/or antennas. In another form, the invention relates to the field of transponders (tags), such as Radio Frequency Identification Devices (RFID), interrogator devices/systems and the transmission of data between a tag and an interrogator. The present invention utilises antenna design to alleviate tag coupling.

Abstract: In some implementations, a near field communication (NFC) apparatus may include an insert for installation in a cut-out of a panel or housing, the insert comprising a first portion adapted to extend through the cut-out and a second portion comprising a flange adapted to abut the panel or housing adjacent the cut-out, wherein the flange comprises an NFC antenna. The flange thus serves the purposes of securing the apparatus in place, providing a discrete cosmetic finish concealing and protecting the antenna, and housing an antenna of larger area than otherwise possible to allow improved communications range.

Abstract: A broad-band, multi-band antenna. The antenna includes a ground terminal and a feed terminal, an elongated inductor, a first inductive element electrically coupled between the ground terminal and a first extremity of the elongated inductor, a capacitive element in parallel connection with the first inductive element, and a second inductive element electrically coupled between a second extremity of the elongated inductor and the feed terminal.

Abstract: An antenna comprises a ring-shaped radiofrequency resonator that defines a path for a circulating magnetic current. In an implementation, the resonator has a height of no more than 2% of an operating wavelength, and it has an electromagnetic resonance at the operating frequency. In an implementation, the antenna is of a type having a vertical, short electric dipole radiation or sensitivity pattern. It comprises, as the dominant radiative element, a ring of material disposed transverse to the vertical dipole axis and having an average magnetic permeability more than ten times the magnetic permeability of air. The ring has a maximum outer diameter and a height that is less than the maximum outer diameter. The antenna further includes a feed structure adapted to couple radiofrequency energy into and/or out of a magnetic current circulating in the ring.

Abstract: The present invention refers to an antennaless wireless handheld or portable device comprising a communication module including a radiating system capable of transmitting and receiving electromagnetic wave signals in a first frequency region and in a second frequency region, wherein the highest frequency of the first frequency region is lower than the lowest frequency of the second frequency region. The radiating system comprising a radiating structure and at least one internal port, wherein the input impedance of the radiating structure at the/each internal port when disconnected from the radiofrequency system has an imaginary part not equal to zero for any frequency of the first frequency region; and wherein said radiofrequency system modifies the impedance of the radiating structure, providing impedance matching to the radiating system in the at least two frequency regions of operation of the radiating system.

Abstract: The present invention is disclosed to provide an NFC antenna using dual resonance, wherein a closed circuit is formed by a capacitor and a loop antenna, and a relay unit is attached to a portable wireless terminal that forms a resonance to a predetermined frequency signal mutually transmitted between a portable wireless terminal reader and an NFC chip, and in the course of communicating between the NFC chip and the reader, the relay unit relays a signal transmitted by the reader to an NFC antenna unit, and the NFC chip relays a signal transmitted through the NFC antenna unit to the reader to thereby increase a recognition distance capable of obtaining predetermined information.

Abstract: A provided wireless wallbox dimmer may accommodate a plurality of button configurations. The dimmer may be configured to contain a variable number of controllably conductive devices. The dimmer may include a yoke that defines a first plane and an antenna that defines a second plane that is substantially parallel to and spaced apart from the first plane. The yoke may have a flange that is oriented angularly offset relative to the first plane and provides a plurality of mounting locations for controllably conductive devices. The antenna may provide the dimmer with a first wireless transmission range. The dimmer may include a faceplate that cooperates with the antenna to provide the dimmer with a second wireless transmission range that is broader than the first wireless transmission range. The dimmer may include a button assembly that is supported independently of the yoke.

Abstract: Devices and methods are disclosed for providing an improved antenna for NFC mobile devices. Embodiments of the disclosure provide an antenna configuration that makes it possible to establish an NFC link when an NFC mobile device is oriented in ergonomic positions that are desirable for a user. In various embodiments, the NFC antenna is folded and wrapped around a portion of the case of a mobile wireless device. Using the NFC antenna disclosed herein, an NFC link can be established regardless of the orientation of the NFC wireless mobile device and another NFC device, as long as the antenna-bearing end of the wireless mobile device is pointed toward the antenna of the other NFC device.

Abstract: A loop antenna adapted for a communication device is provided. The loop antenna includes a feed, a ground, a circular loop, at least one first tuning element, and at least one second tuning element. The circular loop is connected to the feed and the ground. The first tuning element is extended from the circular loop and corresponds to a first frequency band. The second tuning element is extended from the circular loop and corresponds to a second frequency band. Bandwidths of the first frequency band and the second frequency band of the loop antenna are changed by adjusting the first tuning element and the second tuning element, respectively.

Abstract: A split ring-resonator includes a substrate, an inner-trench or cavity formed into the substrate, the inner trench or cavity including a split, and an outer trench or cavity formed into the substrate around the inner trench or cavity, the outer trench or cavity including another split disposed at an opposite end of the split in the inner trench or cavity, wherein the inner trench or cavity and the outer trench or cavity are configured to receive an electrically conductive gas and/or plasma to form a split-ring resonator.

Abstract: A multi-band antenna array for use in wireless communication devices with up to three simultaneous operating modes with improved antenna efficiency and reduced antenna coupling across a broad range of operative frequency bands with reduced physical size is described. The multi-band antenna array includes at least two loop antenna elements, each of which is orthogonal to, and arranged in an embedded manner, relative to each other. Each loop antenna in the multi-band antenna array may include a corresponding tuning element for tuning to a desired resonant frequency, and be comprised of an upper and lower half with the corresponding tuning element coupled therebetween.

Abstract: A near field communication (NFC) antenna apparatus with improved operation range, and a portable device having the same are provided. The NFC antenna apparatus includes a first NFC antenna proximate a front surface of the portable device, such as within a black mark area of a front side. A second NFC antenna is proximate a rear surface of the device, such as between a rear case and a PCB. In an exemplary embodiment, the second NFC antenna comprises an outer edge loop, and an inner loop to bolster magnetic field strength in a weak radio area generated by the outer edge loop.

Abstract: A magnetic field focusing assembly includes a magnetic field generating device configured to generate a magnetic field, and a split ring resonator assembly configured to be magnetically coupled to the magnetic field generating device and configured to focus the magnetic field produced by the magnetic field generating device.

Abstract: Winding a module antenna (MA) for an antenna module (AM) on a tubular support structure (SS) having have a lid structure (LD) or a planar tool (PT) disposed at its free end to constrain the windings. Alternatively, winding wire coils for module antennas (MA) on coil winding forms (CWF, FIG. 26) and transferring them to a module tape (MT). Double-sided and single-sided module tapes (MT) having vias and openings (h) are disclosed. Connection bridges (CBR) formed within, between or surrounding the contact pads (CP) are disclosed. Various configurations for components (CA, CC, EA) of booster antenna (BA) are disclosed. A coupler coil (CC) has an inner winding (iw) and an outer winding (ow). Techniques for embedding wire and for bonding wire are disclosed.

Abstract: The invention concerns an electronic entity comprising an electronic circuit and an antenna one part of which at least forms a conductive circuit connected to two ends of the electronic circuit. The projection of the circuit formed by the antenna and the electronic circuit in a plane which is substantially parallel thereto, forms an intersection-free line and the antenna includes a winding which extends over strictly more than one turn.

Abstract: A mobile wireless communications device may include a portable housing, a printed circuit board (PCB) carried by the portable housing, and wireless transceiver circuitry carried by the PCB. The mobile wireless communications device also may include an antenna coupled to the wireless transceiver circuitry. The antenna may include a loop conductor, a first conductor body coupled to the loop conductor and extending into the interior thereof to define a first slotted opening with adjacent portions of the loop conductor, and a second conductor body coupled to the loop conductor and extending into the interior thereof to define a second slotted opening with adjacent portions of the loop conductor. The antenna may further include a conductor arm coupled to the loop conductor and extending outwardly therefrom. The first and second conductor bodies may be spaced apart to define a third slotted opening therebetween.

Abstract: Provided is an in-vehicle patch antenna device which has a reduced size and multiple functions while improving performance. An in-vehicle patch antenna device includes a substrate (10), a ground conductor (20) provided on the substrate (10), an antenna element section (30) and a reporting circuit section (40). The antenna element section (30) has a feeding section (31) and is provided on a surface of the substrate (10) opposite to a surface on which the ground conductor (20) is provided. The reporting circuit section (40) is provided on the substrate (10) and connected around an area in a periphery of the antenna element section (30) at which current distribution is minimal other than the peripheral area thereof where the feeding section (31) is provided.