Abstract: An embodiment of the present invention discloses a wireless terminal. The wireless terminal according to the embodiment of the present invention includes a PCB primary board, a primary board circuit printed on both sides of the PCB primary board, and a diversity antenna, where the diversity antenna is disposed at an end of the PCB primary board, a first primary board metal shielding cover and a second primary board metal shielding cover are each disposed on the primary board circuit on the both sides of the PCB primary board, a radiator is printed on at least one side panel of the PCB primary board, the radiator and the primary board circuit are located in different areas of the PCB primary board, and a first wave absorbing sheet is attached to the first primary board metal shielding cover and/or the second primary board metal shielding cover.

Abstract: An antenna module mainly includes at least one antenna capable of radiating signals of two frequencies, a grounding portion, and at least one isolation metal sheet capable of isolating signals of a frequency generated by different antennas from each other to avoid interference. The antenna module is integrally formed, which can reduce the volume of the antenna module, and provide a stable radiation pattern and broadband and multi-band functions.

Abstract: An apparatus and method is provided to shield contactless portable electronic consumer devices such as radio frequency identification devices (RFID), tokens, mini-cards, key fobs, cellular phones, smartcards, etc. from wireless interrogation. In one embodiment, a contactless portable consumer device which includes a first antenna is shielded from unauthorized wireless interrogation with a radio frequency (RF) shield. The RF shield includes electrically conductive, non-ferromagnetic material and is configured to prevent unauthorized data transfer between a second antenna external to the portable consumer device and the first antenna.

Abstract: Apparatus for improving the reception sensitivity of a portable terminal includes: a peripheral body combined with a main body; a main circuit board mounted to the peripheral body and providing a connection terminal; an antenna formed on the main circuit board; a module arranged to be adjacent to the antenna; and a ground portion installed between the module and the peripheral body, for conducting noise which has been induced into the antenna, into the peripheral body by conducting current through the module and the peripheral body.

Abstract: Exemplary embodiments are provided of multiple-antenna systems with enhanced and/or good isolation and directivity. In one exemplary embodiment, a system generally includes a ground plane and two or more antenna elements coupled to the ground plane. The system also includes two or more low frequency isolators/reflectors and two or more high frequency isolators/reflectors coupled to the ground plane.

Abstract: Enables coupling or retrofitting a golf club with active motion capture electronics that are battery powered, passive or active shot count components, for example a passive RFID, and/or a visual marker on the cap for use with visual motion capture cameras. Does not require modifying the golf club. Electronics package and battery can be easily removed and replaced, for example without any tools. May utilize a weight that is removed when inserting the electronic package in the mount, wherein the weight element may have the same weight as an electronics package, for no net change or minimal change in club weight. May be implemented with a shaft enclosure and expander that may be coupled with a screw aligned along an axis parallel to the axis of the shaft. May utilize non-permanently and/or friction coupling between the mount and shaft. Cap may include a visual marker and/or logo.

Abstract: An antenna assembly includes an antenna housing, an antenna located within the housing, a radio frequency (RF) module located within the housing and connected to the antenna, and a wire assembly operably associated with the module. The module includes a radio frequency device, such as a transmitter, receiver or transceiver, electrically connected to the antenna. The wire assembly includes electrical wires for providing external power to the module and conducting processed signals between the module and external circuitry. The proximal nature of the antenna and RF module reduces or eliminates induced power losses between the antenna and module, resulting in a very effective power transfer ratio. A conductive sleeve is located in the housing and surrounds the RF module. The conductive sleeve is electrically connected to the module to thereby provide a ground plane for the antenna and a shield against outside emissions.

Abstract: An arrangement for reducing interference in a wireless electronic shelf label (ESL) (100) having a layered structure the ESL comprising: a display layer (101) comprising display material, a circuit board (203) with a backplane material structure and an antenna (202), and a circuit board arrangement with control electronics for controlling the operation of the label, such as the display and the radio communication, and a resilient layer having a space for a rigid component, such as a battery, wherein said resilient layer is arranged to provide a substantially even total thickness of said label (100), wherein the radio communication control further comprises means for radio frequency communication via modulated backscatter, wherein the arrangement is ring resonator arrangement isolating the ESL from the electrically conducting shelf arranged on the antenna circuit board, the ring resonator arrangement comprising a plurality of ring resonators (204) that are electrically isolated from the antenna and arranged at

Abstract: Examples of the present invention include antennas and scattering elements having a metamaterial cloak configured so as to reduce effects on the operating parameters of a nearby antenna. For example, an antenna has an antenna frequency, and a cloak is disposed around the antenna having a frequency range in which the cloak is operative. The antenna frequency can lie outside the frequency range of the cloak, whereas the frequency of a second antenna lies within the frequency range of the cloak. In this case, the antenna is cloaked relative to the second 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: Disclosed is a planar EBG structure that can secure a highly efficient radio-wave propagation suppression effect using residual space that is smaller than one whole planar EBG element. By means of structuring EBG elements provided as a row (edge row) of one of the edge parts of the planar EBG structure in a manner so as to be severed at a position that is smaller than the width of the EBG element, the radio-wave propagation suppression effect of the planar EBG structure can be improved with a small number of rows. Specifically, by means of causing the edge row of EBG elements to be at least ¾ and less than 1, a high radio-wave propagation suppression effect can be obtained with a simple structure.

Abstract: According to various aspects, exemplary embodiments are provided of portable communications terminals and assemblies thereof. In one exemplary embodiment, a portable communications terminal includes a support member. An antenna is supported by the support member. Electromagnetic interference (EMI) shielding structure is also supported by the support member. A printed circuit board includes one or more electronic components mounted thereon. The EMI shielding structure is operable for providing EMI shielding for one or more electronic components that are disposed within the interior defined by the EMI shielding structure and the printed circuit board.

Abstract: A handheld electronic device comprises a housing, a receiver, a balance antenna and a body. The housing comprises a top end and a bottom end. The receiver is located in the housing and near the top end, and the balance antenna is located in the housing and near the bottom end. The body is located in the housing and electrically couples to the receiver and the balance antenna.

Abstract: An apparatus for reducing the electromagnetic interference between two or more co-located antennas is described herein. In one embodiment, the apparatus is positioned proximate to a second antenna for intercepting electromagnetic energy radiated from a first antenna during transmission of a signal. To reduce interference at the second antenna, the apparatus includes a plurality of resonant circuit elements, each being configured to resonate at or near a carrier frequency of the transmitted signal for redirecting at least a portion of the electromagnetic energy away from the second antenna. A method for reducing the electromagnetic interference between two or more antennas coupled to a wireless communication device is also disclosed herein.

Abstract: An exemplary embodiment of an antenna system includes a metal cover for a radio communication device and a complementary antenna. The metal cover includes front side part, a first back side part connected to the front side part through a top side part, and a second back side part connected to the front side part through a bottom side part. The bottom and top side parts are positioned at opposite ends of the front side part. The first and second back side parts are positioned essentially coplanar and distanced from each other by a gap. The front side part comprises a recess at the bottom side part and/or at the top side part in which recess the complementary antenna is positioned in.

Abstract: Provided is a built-in transmitting and receiving integrated radar antenna whose coverage of a horizontal radiation pattern is widened and whose space factor is improved by integrating high-frequency circuit component onto an antenna substrate while suppressing unnecessary waves. A first dielectric substrate (111) is formed into a three-layered structure in which a bias line (171) of an MIC is disposed between a second layer (111b) and a third layer (111c) and a second ground plane (114) is disposed between the first layer (111a) and the second layer (111b). Also, the second ground plane (114) is conductively connected with isolated through-holes (163, 164), so that a domain in which a feeding port (115) is disposed is isolated from a domain (B) in which the bias line (171) is disposed.

Abstract: Disclosed are devices and methods related to radio-frequency (RF) shielding of RF modules. In some embodiments, tuned shielding can be achieved by utilizing different structures and/or arrangements of shielding-wirebonds to increase shielding in areas where needed, and to decrease shielding where not needed. Such tuning of shielding requirements can be obtained by measuring RF power levels at different locations of a module having a given design. Such tuned RF shielding configurations can improve the overall effectiveness of shielding, and can also be more cost effective to implement.

Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.

Abstract: An electronic equipment comprises: a metal casing defining a first face formed so as to provide an opening, a second face connected to the first face; and a shielding member arranged adjacent to the first face to shield radio waves, wherein the metal casing has a cutout formed in the second face so as to come close to the first face, a part of the shielding member is arranged to be closer to the first face than a first end of the cutout, the first end is further away from the first face than a second end of the cutout on the side of the first face, and wherein an antenna is provided on outer side of a virtual line connecting a corner of the shielding member adjacent to the first face and closest to the second face with the first end of the cut out.

Abstract: An antenna with electromagnetic interference (EMI) shelter is disclosed, which comprises: an EMI shelter, mounted on a substrate while covering the same; a radiation unit; an induction current steering unit, disposed at a position between the EMI shelter and the radiation unit; and a signal feed-in unit, electrically connected with the radiation unit; wherein, the induction current generated by the radiation unit when it is activating is guided to the EMI shelter through the guidance of the induction current steering unit, and then to be feed into a ground connection (GND), thereby, preventing the operation of radio circuit elements that are mounted on the substrate from being interfered by the electric wave resulting from the induction current. With the aforesaid configuration, not only the EMI effect can be significantly suppressed and the overall manufacturing cost of the antenna can be effectively reduced, but also the signal transmission efficiency is improved.

Abstract: An RFID tag includes a circuit board assembly having a substrate comprised of a material with a high dielectric constant of greater than approximately 4 and having a first side and a second side. A patch antenna is mounted to the first side of the substrate. A metallic ground plane is mounted to the second side of the substrate, and an RFID circuit is at the second side of the substrate. A shorting wall includes a plurality of through holes extending through the substrate and interconnecting the antenna with the ground plane. The plurality of through holes are generally linearly arranged relative to each other along an edge of the ground plane. An electrically conductive via extends through the substrate and interconnects the antenna with the RFID circuit. The via is at a distance from the shorting wall whereby an impedance of the RFID circuit approximately matches an impedance of the antenna. A backplane is coupled with the ground plane, on a side of the ground plane opposite the substrate.

Abstract: The invention relates to a secured document in the form of a booklet of at least one sheet which may be folded about a folding axis, the document having a transponder with an electronic chip provided with a memory for storing data and a transponder antenna. The document also includes a foldable amplifier antenna, distinct from the transponder antenna and arranged on the document such that, when the same is open, the amplifier antenna amplifies the electromagnetic flux received by the transponder antenna to permit communication of the document with a remote reader and, in the closed position of the document, the amplifier antenna reduces the electromagnetic flux received by the transponder antenna beneath a minimum threshold permitting communication of the electronic chip with a remote reader.

Abstract: A telemetry head for communication with an implantable medical device comprises a telemetry antenna and a shield substantially surrounding at least a portion of the antenna, the shield having a coating comprising a ferromagnetic material applied to at least a portion of the shield, wherein the coating is configured to shield at least the portion of the telemetry antenna from electromagnetic interference fields while permitting telemetry signals to pass through the coating.

Abstract: A distributed antenna system (DAS) is described, including a wide band antenna device having respective transmit and receive antennas disposed in a single package and arranged to provide mutual isolation so that in use noise from the transmit antenna is isolated from the transmit antenna, whereby reception is possible at a frequency the same as transmission.

Abstract: A sensitivity adjustment device adjusts radio wave sensitivity of an antenna which wirelessly transmits/receives a signal to/from an external device. The sensitivity adjustment device includes a case and a ring-shaped rotating member. The case houses the antenna. The rotating member is disposed on the outside of the case in such a way as to be rotatable. The rotating member includes (a) a shielding part which shields a radio wave and (b) a penetration part which allows penetration of a radio wave. A positional relationship between (a) the antenna and (b) the shielding part and the penetration part is changed by rotation of the rotating member so that the radio wave sensitivity of the antenna is adjusted.

Abstract: A high-frequency antenna unit for a magnetic resonance apparatus includes a high-frequency antenna and a shield unit. The shield unit, the high-frequency antenna, or a combination thereof is formed at least partially from a composite material. The composite material includes at least one electrically conducting material and at least one electrically non-conducting material.

Abstract: The present invention provides a high frequency circuit, a high frequency circuit component, and a communication apparatus that uses the same, the circuit capable of being used for different communication systems, having a high receiving sensitivity and restraining the loss of transmission power. A high frequency circuit of the present invention includes: a first antenna terminal (ANT1) and a second antenna terminal (ANT2); and at least a transmitting terminal (Tx) and a first and a second receiving terminal (Rx1, Rx2) for a first communication system. With each switch, the first and the second receiving terminals (Rx1, Rx2) can be each simultaneously connected to the first and the second antenna terminals (ANT1, ANT2). Also, the transmitting terminal (Tx) is selectively connectable to either of the first and second antenna terminals (ANT1, ANT2).

Abstract: A multi-band antenna includes a grounding portion, a main radiating portion, and a shielding wall. The main radiating portion includes a first radiating portion having a first feed end and a second radiating portion having a second feed end. The first and second radiating portions are structurally symmetrical. The main radiating portion and the shielding wall are arranged on opposite sides of the grounding portion.

Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.

Abstract: A wireless encoder for encoding a plurality of wireless communication devices carried by media comprises a shielded enclosure having an exterior surface defining an aperture; a wireless signal generator to excite the shielded enclosure; and a media path along which media carrying a plurality of wireless communication devices travels. The media path passes across the aperture outside the shielded enclosure.

Abstract: An antenna includes: a dielectric resonator surrounded by a via fence within a multilayered substrate; a patch antenna formed on an opening surface of the dielectric resonator; a coupling aperture formed on an internal ground surface within the multilayered substrate; and a feeding line for transferring a signal applied from the outside.

Abstract: An antenna for radio frequency (RF) applications comprising: a dielectric element including a dielectric material; an active element attached to a first external surface of the dielectric element; a cavity in the dielectric element; a radio device deposited in the cavity and adapted for coupling to the active element; and an electromagnetic interference (EMI) shield positioned in the cavity and between the radio device and the dielectric element, the EMI shield configured for inhibiting EMI between the radio device and the active element.

Abstract: Disclosed herein is an internal antenna capable of mitigating the effect of electromagnetic waves on a human body using coupling. The internal antenna includes an antenna pattern part and a conductive conductor pattern. The antenna pattern part is form on the Printed Circuit Board (PCB) of a mobile communication terminal. The conductive conductor pattern is formed in a predetermined pattern on one side surface of a cover which covers the antenna pattern part. Coupling occurs between the antenna pattern part formed on the PCB and the conductive conductor pattern formed in a predetermined pattern on one side surface of the cover, so that current components are transferred from the antenna pattern part to the conductive conductor pattern.

Abstract: An exemplary testing circuit board is used for testing an antenna performance and includes a signal circuit layer, a base layer electrically connected to the signal circuit layer, and a test unit. The signal circuit layer can transmit test signals from the antenna. The base layer is fixed with the signal circuit layer and used as a ground section to shield the test signals. The test unit is electrically connected to the signal circuit layer and the base layer and includes a signal inception port. The signal inception port is positioned on the signal circuit layer and protrudes from the base layer, and the signal inception port is capable of receiving the test signals and transmitting the test signals to the signal circuit layer.

Abstract: The present invention provides a magnetic sheet with improved resistance to folding while maintaining good magnetic characteristics and reliability; a method for producing the magnetic sheet; an antenna; and a portable communication device. A magnetic sheet of the present invention includes a flat magnetic powder, and a resin binder capable of dissolving in a solvent, wherein the magnetic sheet has a gradient of the content ratio of the magnetic powder to the resin binder in a thickness direction thereof, wherein, in use, the magnetic sheet is folded so that, of the front and back surfaces thereof, one surface whose magnetic powder content is lower than that of the other is folded inward, and wherein the difference in glossiness measured at a light-incident angle of 60° between the front and back surfaces is 9.4 or more.

Abstract: A stacked multi-band antenna for a satellite positioning system comprises a stack of conductive patches, which are each dimensioned so as to be respectively operative in a dedicated frequency band. An excitation line section comprising pairs of conductive strips is arranged underneath the stack of conductive patches. Each pair of conductive strips is adapted for radiatively coupling to an associate conductive patch of the stack of conductive patches. An RF front end with at least one electric circuit is arranged in a triplate section underneath the excitation line section for operatively connecting the pairs of conductive strips to a satellite positioning receiver. The at least one electric circuit includes filters and amplifiers for respectively filtering and amplifying signals from the pairs of conductive strips, during antenna operation.

Abstract: An apparatus for screening the magnetic field of a transponder is described, which apparatus comprises, in a first area section, at least one flat antenna structure which comprises conductor tracks for conducting current in a direction of current flow and has an application-specific extent, wherein the apparatus comprises a second area section or carrier to which strips of a highly permeable screening material are applied such that they are oriented with respect to one another in a predetermined manner, wherein the second area section is arranged parallel to the first area section.

Abstract: An RF shielding device for application to mobile devices includes an RF blocking screen material configured to cover a front face of the mobile device. The screen material includes a grounding material that contacts a body portion of the mobile device for grounding the screen material to the mobile device. The RF shielding device allows proper operation of a touchscreen interface. The RF shielding device may be configured as a self-adhesive material dimensioned to cover a substantial portion of the front face of the mobile device. Alternatively, the RF shielding device may be constructed as a case or protective shell.

Abstract: There is described a Passive Intermodulation (PIM) shield for use with an aircraft for reducing PIM sources, the PIM shield comprising: a conductive material adapted to be placed between an antenna and a fuselage of the aircraft for preventing undesired Radio Frequency (RF) signals resulting from a combination of RF signals transmitted from and to the antenna and generated by non-linear junctions or material between the antenna and the fuselage of the aircraft, the conductive material having a thickness based on an RF skin-depth related to an operating frequency of the antenna. There is described a method for determining an operating frequency of an antenna, determining an RF skin-depth related to the operating frequency of the antenna, and providing the PIM shield.

Abstract: A surface communication device of the present invention includes: an electromagnetic wave propagation unit which propagates electromagnetic waves and has a sheet shape; and at least one of a power feeding device unit which is disposed on the electromagnetic wave propagation unit in a non-conductive state with the electromagnetic wave propagation unit and feeds the electromagnetic waves to the electromagnetic wave propagation unit, and a reception device unit which is disposed on the electromagnetic wave propagation unit in a non-conductive state with the electromagnetic wave propagation unit and receives the electromagnetic waves propagated via the electromagnetic wave propagation unit.

Abstract: A multiple-input multiple-output (MIMO) device includes a substrate, a shielding cover and a MIMO antenna. The shielding cover is positioned on the substrate, and includes a plurality of sidewalls. The MIMO antenna includes a first solid antenna, a second solid antenna, and a plane antenna. The first solid antenna and the second solid antenna are electrically connected to two ends of one sidewall of the shielding cover, respectively. The first plane antenna is configured on the substrate, and disposed between the first solid antenna and the second solid antenna.

Abstract: A wireless communicator, including a modem operable to transmit and receive voice communication phone calls, a power amplifier coupled with the modem operable to dynamically apply a variable gain factor to voice communications transmitted by the modem, to produce an appropriate power output, and a controller coupled with the modem including a radiation monitor operable to monitor the power output of the power amplifier, the controller being operable to restrict operation of the modem, based on data provided by the radiation monitor, when the cumulative power output produced by the power amplifier exceeds a pre-designated daily cumulative power limit.

Abstract: The present invention relates to a shield case and an antenna set comprising the same, wherein the shield case includes a shield surface for shielding embedded electronic elements against electromagnetic wave, a fixing unit coupled with a substrate mounted with the electronic elements, signal receivers for receiving a signal of desired frequency, and two strip antennas connected to a border of the shield surface, each antenna facing the other across the shield surface.

Abstract: A semiconductor chip integrating a transceiver, an antenna, and a receiver is provided. The transceiver is located on a front side of a semiconductor substrate. A through substrate via provides electrical connection between the transceiver and the receiver located on a backside of the semiconductor substrate. The antenna connected to the transceiver is located in a dielectric layer located on the front side of the substrate. The separation between the reflector plate and the antenna is about the quarter wavelength of millimeter waves, which enhances radiation efficiency of the antenna. An array of through substrate dielectric vias may be employed to reduce the effective dielectric constant of the material between the antenna and the reflector plate, thereby reducing the wavelength of the millimeter wave and enhance the radiation efficiency. A design structure for designing, manufacturing, or testing a design for such a semiconductor chip is also provided.

Abstract: A printed circuit board (PCB) antenna assembly having a metal shroud and a method of making the same are presented. The shroud reduces radio frequency (RF) interference from the rear of the PCB antenna while not introducing unwanted nulls in front of the antenna. The metal shroud has a back panel and two angled side panels and is set so that the back panel is parallel to the PCB antenna and set at a determined distance from the PCB antenna. The shroud can be formed by applying a metallized paint to a non-conducting cover with properly oriented surfaces.

Abstract: Systems, tags and methods for disabling transponders used in electronic toll collection or other RFID systems, wherein the transponders include an antenna and RFID circuitry. The transponders can be selectively disabled by positioning (e.g., pivotably moving) a disabling member having a metallic portion to an operative position over the antenna of the RFID system, whereupon the metallic portion is coupled to the antenna in such a manner as to disable the RFID circuitry so long as the disabling member is at the operative position. The RFID circuitry is arranged to be automatically enabled upon removal of the disabling member from the operative position (e.g., pivoting the disabling member back to an inoperative position).

Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing and having RF circuitry comprising at least one RF component and plurality of other components mounted on the circuit board. An RF metal shield is secured to the circuit board and surrounds and isolates the at least one RF component and plurality of other components within the RF metal shield. An RF absorber is positioned adjacent an area of the RF component that radiates energy to aid in reducing energy radiated from the RF component into the RF metal shield.

Abstract: An antenna assembly that includes an antenna module fitting between a display panel of an electronic device and a metallic cover of the device. The antenna module includes an antenna and a support for the antenna. A shielding layer fits between the antenna module and the cover. The shielding layer has a grounding area configured for electrical connection with the antenna and for electrical isolation from the cover.

Abstract: An antenna module for an electronic device includes a shielding metal sheet for isolation of electromagnetic interference, and an antenna placed on the shielding metal sheet for radio signal reception and transmission, wherein the shielding metal sheet includes a first ground point working as a ground point of the antenna module and the antenna includes a first feeding point working as a feeding point of the antenna module.

Abstract: An antenna and a wireless transceiver are provided. The antenna includes: a substrate having first and second surfaces with circuits thereon; and two shield boxes located on the first and second surfaces for covering the circuits thereon. The shield boxes each comprise an antenna section and a shield section. The antenna sections are disposed at one side of the shield section and aligned with a margin of the substrate, and include signal ends electrically connected to the circuits and grounding ends electrically connected to the shield sections. The first antenna section is disposed on a diagonal opposite of the second antenna section flush with substrate margin or aligned with the substrate margin, thereby maximizing the distance between the two antennas disposed on the substrate, and preventing the two antennas from electromagnetic interference. The antennas are disposed on sides of the shield sections flush with substrate margins and thereby are space-saving.