Abstract: A radar sensing system for a vehicle includes a radar sensor disposed at the vehicle so as to sense exterior of the vehicle. The radar sensor includes a plurality of transmitters that transmit radio signals, and a plurality of receivers that receive radio signals, with the received radio signals being transmitted radio signals that are reflected from an object. A processor is operable to process outputs of the receivers. The radar sensor includes a printed circuit board having circuitry disposed thereat and at least one waveguide having an interface end in electrical contact with the printed circuit board. The at least one waveguide includes at least one notch at the interface end that reduces an area of electrical contact between the at least one waveguide and the printed circuit board and increases pressure at the electrical contact area.

Abstract: An electronic device and a shielding film are disclosed herein. The electronic device includes a printed circuit board and at least one electrical component mounted on the printed circuit board. The shielding film is disposed on at least a part of the printed circuit board to block electromagnetic waves generated by the printed circuit board and/or the electronic component. The shielding film includes a plurality of layers, and is attached to at least part of the printed circuit board and contacting an upper side surface of the electronic component, wherein at least part of the shielding film includes a nano-conductive fiber and is electrically connected with a ground part of the printed circuit board through the nano-conductive fiber.

Abstract: Cooled electronic circuitry may include multiple and substantially parallel circuitry surfaces, each containing power amplifier circuitry, having a side edge, and includes material between at least a portion of the base plate and the side edge that provides a level of thermal conductivity of at least 167 W/m-k; and a cooling plate having a flat surface attached to each of the side edges of the circuitry surfaces in a thermally-conductive manner.

Abstract: A first and second electronic device each including a connection surface and a magnetic element. The first and second devices may be in contact along the respective connection surfaces. The magnetic elements may be configured to align the first and second devices by moving either or both of the first and second devices relative to each other to achieve an aligned position. The magnetic element may also be operative to resist disconnection of first and second electronic devices when in the aligned position.

Abstract: The RFID wrist band includes an elastic block section including an airtight storage part, an elastic band section connected to the elastic block section to form an annular shape, and an inlay stored in the storage part and including a base substrate, an antenna on the base substrate, and an IC chip connected electrically with the antenna. The inlay is not fixed to an inner wall of the storage part, and the storage part is larger than a volume occupied by the inlay.

Abstract: Various systems of an electronic deice and methods for manufacturing the same are provided. In some embodiments, a routing assembly is provided that may not only route a cable along a circuit board, but that may also shield and electronic component or secure an electronic component to the circuit board. In some other embodiments, there is provided a mechanism for electrically coupling two components of an electronic device that may also be visually appealing in the context of other portions of the electronic device.

Abstract: Aspects of the present disclosure relate to determining the location and/or density of vias that form part of an RF isolation structure of a packaged module and the resulting RF isolation structures. From electromagnetic interference (EMI) data, locations of where via density can be increased and/or decreased without significantly degrading the EMI performance of the RF isolation structure can be identified. In certain embodiments, one or more vias can be added and/or removed from a selected area of the packaged module based on the EMI data.

Abstract: There are provided a high frequency module and a receiver capable of exhausting an electric field and a magnetic field to the outside of a shield, more closely arranging electronic components inside the shield, and being downsized. The high frequency module has integrated circuits (IC) 112, 113 each incorporating an oscillator including an inductor, and a shield case 114 as a shield for covering the ICs 112, 113, and the shield case 114 as a shield is formed with openings 116A, 116B having a size equal to or more than half the shape size of the ICs 112, 113 in areas opposed to the arrangement positions of the ICs 112, 113.

Abstract: A converter in a radio-frequency (RF) apparatus includes a feedback circuitry. The feedback circuitry has a shielded input and a shielded output. The shielded input and the shielded output of the feedback circuitry tend to reduce interference in the converter.

Abstract: A portable audio device having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a portable housing, a battery carried thereby, a recharging power input connected to the battery, a digital signal input, and an audio analog signal output. A digital-to-analog converter (DAC) may be carried by the portable housing and powered by the battery for converting a selected digital audio file from a memory into an analog audio signal. An audio analog amplifier may be connected between the DAC and the audio analog signal output. A first RF filter(s) may be connected to the recharging power input, and a second RF filter(s) may be connected to the audio analog signal output, both for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

Abstract: A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn by a user and includes a microphone and earpiece. An antenna receives wireless communication signals and passes them to RF and audio circuitry mounted within the headset body. The RF and audio circuitry include a Bluetooth module operatively connected to the antenna for transmitting and receiving wireless communication signals, an audio CODEC connected to the Bluetooth module, and audio connection lines connected between the CODEC and the earpiece and between the CODEC and the microphone. A filter is connected into each of the audio connection lines at the earpiece and microphone and operative for reducing the RF coupling from a mobile wireless communications device.

Abstract: Embodiments relate to a system for conducting hearing aid compatibility testing of a mobile communication device. The system comprises: a simulated hand for supporting the mobile communication device during the testing; a probe; and a processor. The processor is configured to cause the probe to be positioned in a sequence of positions in proximity to the mobile communication device relative to an audio output component of the mobile communication device during the testing and to determine a field strength of a field radiated by the mobile communication device at the sequence of positions based on an output of the probe at each position.

Abstract: A management controller, method and program product for forcing one or more power states on a display, the management controller comprising: a computer (110) configured to receive a power management electronic signal; the computer (110) comprising control logic that operates without use of an operating system to determine a desired level of the power management electronic signal and to set the power management electronic signal to the desired level; and the computer (110) configured to send the power management electronic signal at the desired level to a monitor (120).

Abstract: Embodiments described herein include a computing device that is capable of inductive signal transfer with other computing devices. Such computing devices are provided a shield that protects the device and other components from electromagnetic interference and unwanted electrical affects resulting from the inductive signal transfer.

Abstract: A portable audio device having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a portable housing, a battery carried thereby, a recharging power input connected to the battery, a digital signal input, and an audio analog signal output. A digital-to-analog converter (DAC) may be carried by the portable housing and powered by the battery for converting a selected digital audio file from a memory into an analog audio signal. An audio analog amplifier may be connected between the DAC and the audio analog signal output. A first RF filter(s) may be connected to the recharging power input, and a second RF filter(s) may be connected to the audio analog signal output, both for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

Abstract: A mobile wireless communications device includes a housing and circuit board in the housing and having radio frequency (RF) circuitry and a power amplifier and microphone mounted thereon. An antenna is carried within the housing and operative with the RF circuitry. An RF shield surrounds and isolates the microphone from the RF circuitry, power amplifier and antenna and shields the microphone from radiated energy generated from the RF circuitry, antenna or power amplifier.

Abstract: Embodiments relate to a system for conducting hearing aid compatibility testing of a mobile communication device. The system comprises: a simulated hand for supporting the mobile communication device during the testing; a probe; and a processor. The processor is configured to cause the probe to be positioned in a sequence of positions in proximity to the mobile communication device relative to an audio output component of the mobile communication device during the testing and to determine a field strength of a field radiated by the mobile communication device at the sequence of positions based on an output of the probe at each position.

Abstract: A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn by a user and includes a microphone and earpiece. An antenna receives wireless communication signals and passes them to RF and audio circuitry mounted within the headset body. The RF and audio circuitry include a Bluetooth module operatively connected to the antenna for transmitting and receiving wireless communication signals, an audio CODEC connected to the Bluetooth module, and audio connection lines connected between the CODEC and the earpiece and between the CODEC and the microphone. A filter is connected into each of the audio connection lines at the earpiece and microphone and operative for reducing the RF coupling from a mobile wireless communications device.

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: An electronic device according to the present invention comprises a pair of housings coupled to each other openably and closably by a hinge mechanism, and each of the housings comprises a front cabinet and a back cabinet joined to each other. The back cabinet of at least one of the housings is formed from a material having a greater expansion coefficient than that of a material forming the front cabinet, and the back cabinet of at least one of the housings has a cutting part extending in the width direction perpendicular to the longitudinal direction thereof and longitudinally cutting at least a part of the back cabinet.

Abstract: A mobile wireless communications device includes a housing and circuit board in the housing and having radio frequency (RF) circuitry and a power amplifier and microphone mounted thereon. An antenna is carried within the housing and operative with the RF circuitry. An RF shield surrounds and isolates the microphone from the RF circuitry, power amplifier and antenna and shields the microphone from radiated energy generated from the RF circuitry, antenna or power amplifier.

Abstract: The present invention uses metallization termination techniques to reduce the electro-magnetic field scattering at the edges of metallized areas. The metallization termination techniques provide a gradual transition from high conductivity areas to high impedance areas. The mobile phone antenna illuminates the PCB allowing currents to flow on the PCB. When the currents reach edges of the PCB they flow through a region of increasingly high impedance without reflecting back or scattering.

Abstract: An information handling system includes a digital circuit having a first terminal connected to a first voltage reference, and a second terminal connected to a second voltage reference. The digital circuit is configured to be coupled to a radio device. The system also includes a band pass filter having a first terminal connected to the first voltage reference, and a second terminal connected to the second voltage reference. The bandpass filter is configured to produce a low impedance response, to reduce a radio frequency noise generated at a specific frequency band of the band pass filter, and to reduce a radio frequency interference produced by the digital circuit and received at the radio device.

Abstract: A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn by a user and includes a microphone and earpiece. An antenna receives wireless communication signals and passes them to RF and audio circuitry mounted within the headset body. The RF and audio circuitry include a Bluetooth module operatively connected to the antenna for transmitting and receiving wireless communication signals, an audio CODEC connected to the Bluetooth module, and audio connection lines connected between the CODEC and the earpiece and between the CODEC and the microphone. A filter is connected into each of the audio connection lines at the earpiece and microphone and operative for reducing the RF coupling from a mobile wireless communications device.

Abstract: A semiconductor device for an ultra-wideband standard for ultra-high-frequency communication includes an ultra-wideband semiconductor chip and a multilayer circuit substrate with at least one lower metal layer and one upper metal layer, in which an ultra-wideband circuit with passive devices is arranged. The lower metal layer has external contact pads on which external contacts are arranged, via which the semiconductor device can be surface-mounted on a circuit board. In addition, the semiconductor device has an antenna which is operatively coupled to the ultra-wideband semiconductor chip via the circuit on the circuit substrate and is arranged above the semiconductor chip and the circuit substrate.

Abstract: A radar electronics module includes a support structure having a first surface having a plurality of recesses with a transmitter circuit board and a receiver circuit board disposed thereon. The transmitter and receiver circuit boards are disposed over the first surface of the supports structure such that transmitter and receive circuits are disposed in cavities on the support structure. The radar electronics module further includes a digital/power supply circuit printed wiring board (PWB) disposed on a second surface of the support structure and a connector disposed on the support structure. The connector is disposed in such a way that it provides electrical connections for at least one of power signals, analog signals or digital signals between at least two of the digital/power supply PWB, the transmitter circuit board and the receiver circuit board.

Abstract: A portable communication device including a casing having a front section and a back section is provided. The back section may at least partly made of an electrically conducting material. The casing also may enclose a ground plane and a radio circuit that is connected to a radiation receiving antenna element and the ground plane. The radiation receiving antenna element is provided in an area of electrically conducting material of the back section of the casing.

Abstract: A field device in an industrial process control system having an electrically grounded housing with an electrical circuit located within the housing is described. The electrical circuit includes wireless communication circuitry and is electrically isolated from the housing. The field device also includes an antenna that is attached to the housing and a cable having a shield positioned between the wireless communication circuitry and the antenna. The cable provides electrical communication between the electrical circuit and the antenna. The electrical circuit is electrically isolated from the housing, and the shield of the cable is electrically grounded to the housing.

Abstract: An RF unit comprises a tuner, a demodulator and a mixer. At least the tuner and the mixer are disposed on separate first and second substrates. The RF unit further comprises a housing accommodating the first and second substrates. The first substrate and the second substrate are arranged on different levels inside the housing and maintain a predetermined distance between each other.

Abstract: An electronic device has housing having plural inner surfaces, plural modules in the housing, and a communication section provided on each of the plural modules. The communication sections perform wireless communication to each other. One inner surface having the largest area among the plural inner surfaces of the housing has an electric wave absorber that absorbs an electric wave for use of the wireless communication.

Abstract: The disclosure relates to a radio frequency (RF) and/or microwave power amplification device which is intended, for example, for a radio communication terminal, comprising means for shielding the device and means for controlling the power delivered as output from said device, said power-control means comprising a power servo loop having power-amplification means, reference means, detection means and comparison means. The aforementioned control means also comprise at least one sensor to detect the energy radiated inside the device.

Abstract: The present invention relates an RF tuner module that comprises one or more standard RF connectors. As, relative big, standard RF connectors are widely in use but at the same time there is a pressure to make products smaller an RF tuner module design is size constrained. The invention describes a measure to make an RF tuner module, with a standard RF-connector, smaller by extending one of the shielding sides of the RF tuner in order to facilitate a proper mounting of the RF connector to the RF tuner module.

Abstract: There is provided a highly reliable transmission/reception integrated radio-frequency apparatus which can achieve a high communication quality in a cable modem. A reception RF signal is input to a reception system block via an input/output terminal, converted to an intermediate-frequency signal, and output from a terminal. An output terminal of a transmission processing section of a transmission system block is connected to the input/output terminal via an overvoltage protection circuit, a high-pass filter functioning as a countermeasure to overvoltage, and a low-pass filter for suppressing harmonics produced from the high-pass filter.

Abstract: A multi-tuner system includes a first conversion tuner that converts a first RF signal among a plurality of RF signals received from an antenna into a first IF signal using a first conversion mode, the first RF signal corresponding to a first selected channel; and a second conversion tuner that converts a second RF signal among the RF signals into a second IF signal using a second conversion mode, the second RF signal corresponding to a second selected channel. Any IF interference between the tuners is eliminated, and the tuners can be fabricated into a single module.

Abstract: A portable audio device having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a portable housing, a battery carried thereby, a recharging power input connected to the battery, a digital signal input, and an audio analog signal output. A digital-to-analog converter (DAC) may be carried by the portable housing and powered by the battery for converting a selected digital audio file from a memory into an analog audio signal. An audio analog amplifier may be connected between the DAC and the audio analog signal output. A first RF filter(s) may be connected to the recharging power input, and a second RF filter(s) may be connected to the audio analog signal output, both for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

Abstract: A radar electronics module includes a support structure having a first surface having a plurality of recesses with a transmitter circuit board and a receiver circuit board disposed thereon. The transmitter and receiver circuit boards are disposed over the first surface of the supports structure such that transmitter and receive circuits are disposed in cavities on the support structure. The radar electronics module further includes a digital/power supply circuit printed wiring board (PWB) disposed on a second surface of the support structure and a connector disposed on the support structure. The connector is disposed in such a way that it provides electrical connections for at least one of power signals, analog signals or digital signals between at least two of the digital/power supply PWB, the transmitter circuit board and the receiver circuit board.

Abstract: A rebroadcasting apparatus for mobile media includes a receiving antenna and a transmitting antenna. The signal to be rebroadcast is received with a circularly polarized directional antenna. The transmitting antenna has circular polarization opposite to the polarization of the receiving antenna. Amplifiers and filters may be included between receiving and transmitting antennas to regulate retransmitted signal quality. The transmitting antenna uses one or more bays of quasi-helical dipole radiators excited using manifold feed equipped with tuning paddles. The transmitting antenna may be formed from light-weight sheet metal or other readily mass-produced materials. The transmitting antenna may be housed within an ordinary security camera enclosure or similar radio-transparent housing.

Abstract: A down converter includes a housing, a down conversion circuit, and a shielding structure. The down conversion circuit is disposed in the housing. The shielding structure is disposed above the down conversion circuit. The shielding structure comprises a cavity and a fine-tunable mechanism. A size of the cavity is adjusted by the fine-tunable mechanism.

Abstract: A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn by a user and includes a microphone and earpiece. An antenna receives wireless communication signals and passes them to RF and audio circuitry mounted within the headset body. The RF and audio circuitry include a Bluetooth module operatively connected to the antenna for transmitting and receiving wireless communication signals, an audio CODEC connected to the Bluetooth module, and audio connection lines connected between the CODEC and the earpiece and between the CODEC and the microphone. A filter is connected into each of the audio connection lines at the earpiece and microphone and operative for reducing the RF coupling from a mobile wireless communications device.

Abstract: A mobile wireless communications device includes a housing and circuit board carried by the housing. RF circuitry and a processor are operative with each other and carried by the circuit board. A receiver speaker and microphone are carried by the housing. Audio circuitry is carried by the circuit board and operative with the RF circuitry and processor. A microphone audio switch and receiver speaker audio switch are carried by the circuit board and are connected with audio connection lines that interconnect the processor. A filter is operative with the audio connection lines and operatively connected to at least one of the microphone audio switch or receiver speaker audio switch to reduce conducted and radiated interfering RF energy from coupling into the audio circuitry.

Abstract: A method and system for over-the-air testing of a radio transreceiver is described. The radio transreceiver is placed in an enclosure box that is shielded to prevent leakage of RF energy. A nest assembly holds in place the radio transreceiver during testing to provide repeatable results with different radios. The testing assembly allows high volume characterization of the radio transreceiver performance in an environment rich with interfering RF signals.

Abstract: The present invention uses metallization termination techniques to reduce the electro-magnetic field scattering at the edges of metallized areas. The metallization termination techniques provide a gradual transition from high conductivity areas to high impedance areas. The mobile phone antenna illuminates the PCB allowing currents to flow on the PCB. When the currents reach edges of the PCB they flow through a region of increasingly high impedance without reflecting back or scattering.

Abstract: A radio frequency identification (RFID) system is described that utilizes a substantially-contiguous conductive shield to shape an electromagnetic field formed by an antenna for communication with RFID tags. The antenna and the conductive shield have substantially planar forms, and may be mounted to a surface of a check-in/check-out area. The conductive shield is positioned around the antenna and within a plane parallel to the antenna, e.g., within the same plane. The conductive shield shapes the electromagnetic field to extend substantially in a direction perpendicular to the antenna, and prevents the electromagnetic field from forming substantially over the conductive shield.

Abstract: The present invention uses metallization termination techniques to reduce the electro-magnetic field scattering at the edges of metallized areas. The metallization termination techniques provide a gradual transition from high conductivity areas to high impedance areas. The mobile phone antenna illuminates the PCB allowing currents to flow on the PCB. When the currents reach edges of the PCB they flow through a region of increasingly high impedance without reflecting back or scattering.

Abstract: The invention relates to a method of rendering telecommunication devices ineffective, by creating a substantially radio frequency radiation-free environment by providing an interference generating pattern (IGP) adjacent to the environment in a position between the environment and a source of radio frequency radiation signals so as to substantially reduce, or interfere with such signals thus preventing typical operation of the wireless telecommunications devices. The IGP is generally one that is non-conductive and is or includes a diffraction grating. The IGP is positioned adjacent the environment between the environment and a source of radio frequency radiation signals. Preferably, the IGP is provided as a support member configured in the shape of a diffraction grating, and includes a paint or coating of a non-conductive material having a high dielectric constant thereon.

Abstract: A high frequency module used as a unit circuit making up a phased array antenna, in which the module may be reduced in size with reduction in cost. A high frequency module 10 includes a dielectric substrate 1 having both surfaces metallized. The dielectric substrate has a first metallized layer 2 and a second metallized layer 3 formed on both surfaces and has a low noise amplifier and the phase shifter IC 9 mounted on the metallized layer 2 on one surface. The high frequency module 10 also includes a low noise transistor 7 and a distributed constant circuit 12, formed on the one surface of the dielectric substrate 1 to form the low noise amplifier together, and an input terminal 5, an output terminal 6 and power supply terminals 15A to 15D formed by leading out the metallized layer 2 on the one surface to the opposite side surface of the dielectric substrate 1 in such a manner as to maintain insulation from the metallized layer 3 on the opposite side surface.

Abstract: The invention relates to a high sensitivity receiver installed outdoors which may be used in a base station of a mobile communication system, for example. A received radio frequency signal is converted into a signal in a desired frequency band by a reception bandpass filter RXF3, is subject to a low noise amplification to a desired level by a low noise reception amplifier LNA4, and the amplified signal is converted into an optical signal by a laser diode LD5. RXF3, LNA4 and LD5 are confined in a heat shielding box. LD5 is cooled by cooling means to the order of critical temperature where RXF3, for example, assumes a superconducting state, whereby the dynamic range is increased and stabilized.

Abstract: A communication system that intercepts incoming radio signals and transmits a second signal notifying the user that a radio signal has been intercepted. The communication does so by using an interference generator that is passive, such as a shield, or active, such as destructive interference generators to create a zone in which the radio device does not receive the original incoming radio signal. Using an antenna located outside that zone, a registrar then intercepts incoming signals and notifies the user of the communication using a user-defined method. For example, the incoming signal can be rerouted to a landline or a paper message can be generated and delivered to the user.

Abstract: A metal frame body has first to fourth side plates and is divided, by a shield plate provided in the metal frame body, into a first compartment area near the first side plate and a second compartment area near the second side plate. A distributor is arranged in the first compartment area and a tuner unit is arranged in the second compartment area. A first connector is arranged in a position on the third side plate adjacent to the first compartment area and a second connector, which is connected to the distributor, is arranged in a position on the fourth side plate adjacent to the first compartment area. The distance from the second side plate to the central axis of the first connector is equal to the distance from the second side plate to the central axis of the second connector.

Abstract: A television tuner device includes a metal frame, including a shielding plate which separates the space defined by the metal frame into a first chamber at a first side plate and a second chamber at a second side plate opposite to the first side plate; a distribution unit may be disposed in the first chamber; a tuning unit disposed in the second chamber includes a mixer circuit converting a television signal into an intermediate-frequency signal, an oscillator provides the mixer circuit with an oscillated signal, and a phase-locked-loop (PLL) circuit controls the oscillation frequency of the oscillator; and a crystal oscillator disposed in the first chamber provides the PLL circuit with a reference signal.