Abstract: A mobile terminal includes a terminal body, a case defining an appearance of the terminal body, the case formed of a non-metal, and a metal frame formed of a metal, at least part of the metal frame extending through the case from inside to outside of the terminal body so as to be externally exposed, wherein the case and the metal frame are integrally formed with each other. Accordingly, a specific pattern can be realized at the appearance of the terminal body to arouse distinctive attraction to the appearance, thereby providing a terminal with such attractive appearance.

Abstract: Provided is a portable wireless device (100) including: a circuit board (130); an input unit wiring pattern (140) comprising a flexible substrate that is separate from the circuit board (130); and an antenna element (160) of which a power feed unit (162) is connected to the substrate edge (130a) of the circuit board (130). A vertical wiring unit (142) is wired perpendicularly to the antenna element (160). A first cutoff circuit (171) is installed between the vertical wiring unit (142) and a horizontal wiring unit (143), and cuts off the wiring at a high frequency. The horizontal wiring unit (143) is connected to the circuit board (130) with a connector (150) disposed in the vicinity of the power feed unit (162) therebetween.

Abstract: A mobile terminal that can prevent radiation performance deterioration of an antenna is provided. The mobile terminal includes a circuit board in which an antenna and one or more key buttons are mounted, a housing mounted on the antenna and the circuit board, and a case for enclosing a periphery of the one or more key buttons and having a plurality of openings according to the quantity of the key buttons, wherein an antenna adjacent opening among the plurality of openings is extended through a slot toward an edge of the case to embody a loop antenna. Therefore, radiation deterioration of an antenna due to a case can be prevented. In addition, production costs can be minimized, and a desired external appearance of the mobile terminal is not compromised.

Abstract: A radio-frequency (RF) device for a wireless communication device includes a grounding element, an antenna, a first DC blocking element for cutting off a direct-current (dc) signal route between a grounding terminal of the antenna and the grounding element, a capacitive sensing unit capable of using a radiating element of the antenna to sense an environment capacitance within a specific range, a second DC blocking element electrically connected between the radiating element and the feed-in element for blocking a dc signal path from the radiating element to the feed-in element, and a high-frequency blocking element electrically connected between the radiating element and the capacitive sensing unit for blocking a high-frequency signal path from the radiating element to the capacitive sensing unit.

Abstract: Mobile devices may minimize the radiation exposure to users by controlling the distance between the user, specifically the head, and the mobile device to a minimum distance. The reduction in exposure is realized due to the operation of the Inverse Square Rule on electromagnetic signal from the mobile device recognizing there is a steep fall off of signal strength resultant from increased distance between the head of the user and the source of the signal. Embodiments increase and maintain operational distance between the user and the broadcast device to reduce signal absorption, while maintaining sound quality and volume. Embodiments enforce the operational distance with physical barriers preventing the distance from being reduced. Embodiments described herein also allow for the retraction of the physical barrier for storage or portage.

Abstract: In the embodiment, a communication device is provided including a substrate, an antenna mounted on the substrate, a first communication unit which transmits or receives a first signal via the antenna, a terminal provided on the substrate, a signal wire one end of which is connected to the terminal, a conductor plate connected to the other end of the signal wire, and a second communication unit which transmits or receives a second signal via the conductor plate. A sum length of a line length of the signal wire and half a circumferential length of the conductor plate is equal to integral times of half the wavelength of the resonance frequency of the antenna.

Abstract: The invention refers to a base station (BTS) and a method for a BTS, for a cellular communication system comprising a user equipment (UE) onboard an aircraft, when at a predetermined altitude, and a terrestrial network. The invention is characterised in that the BTS is arranged to be an airborne onboard BTS comprising a screening device generating a first signal (S1) matched to screen a second signal (S2) from the terrestrial network at a predetermined altitude. The onboard BTS also comprises a signal generator generating a third signal (S3) stronger than both the first signal (S1) and the second signal (S2), the onboard BTS arranged to establish a communication link with the UE via the third signal (S3).

Abstract: A hearing aid compatible mobile handset is provided with a parasitic element which is electrically connected to a groundplane of a circuit board. The parasitic element may have a length of around one-quarter wavelength of a frequency of interest. The parasitic element may be are arranged as a pair of parasitic elements. The parasitic element can be disposed in a location where the near field strength is near a peak so as to help reduce the near field level to a point that will allow operation of the handset adjacent a hearing aid.

Abstract: There is provided a grid node that includes (a) an outer shell made of a non-metal material, (b) an inner shell disposed in the outer shell, and defining a space therebetween, (c) a motherboard in the inner shell, and (d) a multiprotocol antenna array having a connector in communication with the motherboard, where the multiprotocol antenna array is disposed within the space.

Abstract: A portable electronic device including a waterproof keypad and a keypad assembly for the waterproof keypad are described. In one embodiment, the keypad assembly comprises: an embossed keypad including a top and bottom surface, the embossed keypad including a plurality of embossed keys on the top surface; a capacitive sensor layer located below the bottom surface of the embossed keypad; an actuator located below the capacitive sensor layer and moveable between a first position and a second position; and a driver configured to cause the actuator to move between the first position and the second position in response to the detection of the presence of an object near to or touching an embossed key in the embossed keypad.

Abstract: A wireless device for providing specific absorption rate (SAR) control comprising a wireless transmitter, a capacitance sensor, and a processor coupled to the wireless transmitter and the capacitance sensor, wherein the processor is configured to receive a first capacitance measurement from the capacitance sensor, estimate a relative proximity of a human body to the apparatus based on the measurement, determine a target transmission time for the wireless transmitter within a time period based on the estimate, and switch off the wireless transmitter for a portion of the time period if a transmission time of the wireless transmitter during the time period exceeds the target transmission time.

Abstract: A ground member of a personal electronic device includes a base and a first deflection arm formed of a portion of the base. The first deflection arm exposes a cutout portion of the base and is bent along a first bend line. The cutout portion is dimensioned to engage with a complementary dimensioned support member and the first deflection arm is configured to deflect and engage with the support member in response to insertion of the support member in the cutout portion. The ground member further includes a second deflection arm extending from the base and bent along a second bend line.

Abstract: A mobile communication device including a system ground plane, an antenna, a signal distributor, a transceiver and a sensing controller is provided. The antenna converts an electromagnetic wave to a radio-frequency signal. Besides, the antenna and the system ground plane form a sensing capacitor to detect an object and generate a detecting signal accordingly. The signal distributor is electrically connected to the antenna through a first connection terminal and a second connection terminal and guides the radio-frequency signal and the detecting signal from the antenna to a third connection terminal and a fourth connection terminal. The transceiver is electrically connected to the third connection terminal and processes the radio-frequency signal. The sensing controller is electrically connected to the fourth connection terminal and determines whether the object exists around the antenna according to the sensing signal.

Abstract: An integrated circuit board includes a substrate, a plurality of electronic components and at least one antenna. The substrate has a central area and two edge areas, wherein the central area is between the two edge areas. The electronic components are disposed on the central area. The antenna is disposed on at least one of the two edge areas, wherein there is predetermined distance between the antenna and the electronic components.

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: In the case where a base station other than of a distributed antenna system provides a time or frequency at which a transmitted power is low, an antenna group configuration unit estimates a communication area of a mobile station using an uplink reference signal that the mobile station transmits, calculates an inter-system interference power for the communication area of each mobile station based on a received power of the out-of-system base station that the each mobile station reports, calculates the inter-system interference power to each of antennas by averaging the inter-system interference powers that the multiple mobile stations report, and decides antennas that form an antenna group according to magnitudes of the calculated inter-system interference powers.

Abstract: A mobile handset configured to estimate the radiation absorbed per mass of tissue of a user, and to perform an action in case the absorbed radiation exceeds a predefined threshold. The absorbed radiation may be estimated during a call. Additionally or alternatively, a prediction of the absorbed radiation level may be estimated and given to the user while the handset is not engaged in a call. various data items such as received power per time, estimated absorbed radiation and location may be transmitted to a server. A server application may use these data items to create regional maps of a cellular network coverage and quality by accumulating multiple inputs from a plurality of individual mobile handsets.

Abstract: A case containing DNA material protect the user from non-ionizing radiation emitted from a mobile phone, while protecting the phone from physical damage. The DNA material absorbs the radiation emitting from the transmitter of the mobile phone. Layers of DNA material along with non-organic layers are advantageously combine to increase the absorption. The DNA material may be used form the case or be provided and an insert to a prior art case.

Abstract: A contactless communication medium includes a base made of an insulating material, an antenna coil section including a conductor wound in a planar shape on the base, an inductance adjusting conductor pattern that is connected in parallel to a part of the conductor in the antenna coil section, and is placed on the base, a capacitor connected to the antenna coil section, and a communication processing section that is connected to the antenna coil section and the capacitor to perform contactless communication processing.

Abstract: A mobile device includes a ground plane, a grounding trace, and a feeding trace. The grounding trace defines a notch, and has a shorted end coupled to the ground plane. The feeding trace is disposed adjacent to the grounding trace, and has a feeding end and an open end. An antenna structure is formed by the grounding trace and the feeding trace. The feeding end of the feeding trace is coupled to a signal source. The open end of the feeding trace substantially extends into the notch of the grounding trace.

Abstract: A communication device includes an upper housing and a bottom housing connected to each other, a master Printed Circuit Board (PCB) for realizing a communication function, a speaker and a keypad assembly. The master PCB board is arranged on the bottom housing, wherein the upper housing includes a front housing and a front cover, the keypad assembly is arranged between the front housing and the front cover; the speaker is arranged under the front housing, the keypad assembly is connected to the master PCB board by a flexible circuit board which passes through the front housing; voice spreading holes connecting to the front cavity of the speaker are correspondingly arranged on the front cover, the keypad assembly and the front housing; the joints among the front housing, the keypad assembly, the front cover and the speaker are waterproof.

Abstract: A layout apparatus for communicating includes, but is not limited to, a structural device, a first signal adjustment device and a radio device. The structural device is designed for configuring the layout of a room, and the first signal adjustment device is adapted for the electrical-optical conversion of an antenna signal. Furthermore, the first signal adjustment device and the radio device are arranged in the structural device, and the radio device is connected to the first signal adjustment device in such a manner that the antenna signal can be transmitted and/or received as a radio signal.

Abstract: An antenna or set of antennae for a wireless device is provided by embedding the antennae into the battery case or generally the surface area of a wireless phone. The antenna connections are through the battery's connections to the wireless device. The antenna can be located at the back surface of the battery or the rear surface of a wireless phone, facing away from the user. An RF shielding device can be embedded into the battery and configured in relation to the antenna such that the RF field intensity and the consequent specific absorption rate for the user is lowered while the outgoing signals of the wireless device remain fully adequate for the function of the wireless device. This feature is preserved for a multi-band operation because a digital phase shifter is used between two radiating antennae. An external case is used as a complement to the wireless phone.

Abstract: An embodiment of an antenna includes a radiation frame and a planar inverted-F antenna (PIFA). The radiation frame has a frame shape that defines a central opening. The PIFA includes an antenna arm, a feed arm, and a shorting arm. A distal end of the shorting arm is conductively coupled with the radiation frame. The antenna may be coupled to a substrate of an RF module. The RF module may be included in a system that also includes a non-RF component that produces a signal for transmission. In such a system, the RF module is configured to receive the signal, convert the signal to an RF signal, and radiate the RF signal over an air interface.

Abstract: A method is provided for reducing near-field radiation and specific absorption rate values in a communications device that includes a multimode antenna structure transmitting and receiving electromagnetic signals and circuitry for processing signals communicated to and from the antenna structure. The method includes adjusting the relative phase between signals fed to neighboring antenna ports of the antenna structure such that a signal fed to the one antenna port has a different phase than a signal fed to the neighboring antenna port to provide antenna pattern control and to increase gain in a selected direction toward a receive point. The method features using a transmit power lower than the transmit power used in a non-pattern control operation of the antenna structure such that the communications device obtains generally equivalent wireless link performance with the receive point using reduced transmit power compared to the non-pattern control operation, thereby reducing the specific absorption rate.

Abstract: A payment-enabled mobile device assembly includes a carrying case configured for attachment to a portable electronic device and that includes an aperture for accepting an integrated circuit (IC) identification card. The IC identification card has a card body and includes electronic components, and in some embodiments a shield layer is provided to shield the electronic components of the IC identification card from electronic components of the portable electronic device. In addition, when the IC identification card is inserted into the aperture at least a portion of the front surface is visible through the aperture.

Abstract: Embodiments of an interposer package structure are provided herein. Embodiments include a substrate having first and second opposing surfaces. An IC die electrically coupled to the first surface of the substrate. A plurality of contact members coupled to the first surface of the substrate. An interposer having a plurality of contact elements located on a first surface. Each conductive element coupled to a respective one of the plurality of contact members. The interposer is configured to facilitate wireless communication between the IC die and another device, heat spreading and electromagnetic interference shielding.

Abstract: Methods and apparatus for reducing voice call drop rate. Existing devices do not account for the added burden of background services on voice calls. Specifically, multi-RAB scenarios (e.g., a voice call and background services) can experience significant reduction in call quality. Accordingly, in one exemplary embodiment, background services that are not time-critical and/or application-critical can be suspended while a voice call is in progress. By suspending background traffic during a call, the device can avoid unnecessary multi-RAB voice call operation, which significantly improves overall network operation and user experience.

Abstract: A mobile wireless communications device may include a housing, an antenna carried by the housing, and a circuit board carried by the housing. The mobile wireless communications device may also include a power amplifier carried by the circuit board, an antenna switch carried by the circuit board and configured to selectively couple the power amplifier to the antenna, a first radio frequency (RF) shield covering the power amplifier and the antenna switch, and a second RF shield within the first RF shield and covering the antenna switch.

Abstract: A case for a mobile electronic device with a touch screen is provided. The case comprises a base frame and first and second frames. The base frame contacts the back of the mobile electronic device and includes coupling parts at the periphery thereof. The first frame wraps one widthwise side and both lengthwise sides, over a certain distance, of the mobile electronic device. The second frame wraps the other widthwise side and both lengthwise sides, over the remaining distance except the distance of lengthwise sides wrapped by the first frame. The first and second frames comprise guard parts for wrapping part of the periphery of the front of the mobile electronic device. The base frame is coupled to the first and second frames by the coupling parts, thereby wrapping the back, widthwise and lengthwise sides, of the mobile electronic device.

Abstract: An attitude detector installed in a cabinet detects the current attitude of the cabinet. Control circuitry suppresses radiated output power of a wireless transceiver in accordance with the current attitude of the cabinet, which is detected by the attitude detection unit. The attitude detection unit obtains two angles ? and ? based on x-axis, y-axis, and z-axis outputs of a three-axis acceleration sensor, for example. The control circuitry determines the necessity or lack thereof of the suppression of the radiated output power in accordance with a combination of the angle values.

Abstract: A radio communication system has a base station and one or more antennas, each of the one or more antennas connects with a radio frequency port of the base station through an RF connection. Direct current and/or low frequency (DC/LF) signals are transmitted to an antenna via the RF connection corresponding to the antenna. The radio communication system further has an identification module at the antenna side, adapted to give an indication for identification of the antenna when receiving the DC/LF signals from the RF connection. Accordingly, the information exchange between the base station and a more or less intelligent “identification unit” in the antenna is performed to allow identification of the antenna from the base station side and further allow diagnosis of the cable link.

Abstract: The invention relates to a radiofrequency communication device that comprises a gripping beating body having a surface; an electronic and/or electric circuit extending in the gripping beating body; at least one antenna provided in the vicinity of the electronic circuit. The device includes a connection circuit for connection to the antenna, that is provided at least partially in the gripping beating body and extends from the electronic circuit up to connection points of the antenna, said antenna connection points being accessible from the outside of the beating body.

Abstract: A wireless communication system comprising at least one base station in a communication cell, wherein the base station is equipped with at least one array antenna comprising at least two antenna ports which are connected to respective at least two corresponding antenna elements, wherein at least two of the at least two antenna elements have essentially the same polarization. The array antenna is arranged for communication via at least two antenna radiation lobes, each antenna radiation lobe communicating an information stream to at least one user equipment (UE) in the cell, wherein each antenna radiation lobe is individually controllable both in azimuth and elevation, whereby the communication of the information streams is optimized.

Abstract: In some embodiments, an apparatus includes a protective cover configured to attach to a wireless device having an exterior surface. The surface includes a first portion and a second portion mutually exclusive from the first portion. The second portion of the surface is associated with at least a portion of an antenna of the wireless device that performs proximity sensing for the wireless device. The protective cover is configured to cover the first portion of the surface when the protective cover is attached to the wireless device. The protective cover is configured to not cover the second portion of the surface when the protective cover is attached to the wireless device. As a result, the proximity sensing and/or the power transmitted by the antenna are not affected by the protective cover when the protective cover is attached to the wireless device and when the wireless device is operational.

Abstract: A mobile wireless communications device may include a portable housing, a circuit board carried by the portable housing, a wireless communications circuit carried by the circuit board, and an audio circuit carried by the circuit board. The device may further include an antenna assembly including an antenna carrier frame coupled to the circuit board and defining a cavity therein, and at least one antenna element carried on the carrier frame and coupled to the wireless communications circuit. The device may also include an audio output transducer carried within the cavity of the antenna carrier frame and coupled to the audio circuit.

Abstract: Microwave radio signals are used to transmit data/voice between mobile phone and cellular towers. The invention is used to reflect and/or block significantly levels of microwave radio signals directed out of the front of the mobile phone. The invention applies to the face of the mobile phone providing a protective shield when the front of the mobile phone is held next to the head or body when microwave radiation absorption can take place into the body. Since the shielding is applied only the front of the phone the microwave signals directed out the sides and back of the phone connect and communicated unobstructed to the cell phone towers.

Abstract: An electronic device includes a housing and an installation assembly. The housing defines an opening. The installation assembly includes a fixing member and a holding member. The fixing member includes a base and a fixing portion protruding from the base. The base defines an entrance corresponding to the opening. The holding member comprising a holding portion and an engaging portion formed on an end of the holding portion. The fixing portion runs through the opening, and the base abuts against an outer surface of the housing with the entrance corresponding to the first opening. The engaging portion is engaged with the fixing portion to fix the holding member to the fixing member in the housing, and the engaging portion abuts against an inner surface of the housing, such that the installation assembly is fixed the housing surrounding the first opening.

Abstract: The invention provides a portable communication device and enclosure therefor where separation of its antenna from the user's head is facilitated. The device comprises: a case; a speaker port; an antenna located in the bottom of the case; and a spacer located on the front of the case for resting against a cheek of a user of the device. When the device is held against the head of a user of the device with the spacer resting against a cheek of the user, the spacer biases the bottom of the device away from the user's head. The spacer may be located at a distance from the speaker port on the front of the case to comply with a Cellular Telephone Information Association (CTIA) test plan for Mobile Station Over the Air Performance.

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: In a mobile phone, a vibrator, arranged on a substrate, has two power supply terminals. The vibrator's first and second terminals are each connected to a control unit via a first wiring, a coil and a second wiring. A capacitor is connected between the two terminals' first wirings One end of an antenna sub-element is connected to the first terminal's first wiring and one end is connected to a radio circuit unit. An antenna unit operates at frequency ?2, corresponding to a communication frequency. The control unit and the vibrator operate at frequency ?1. The coils have a self-resonant frequency of ?2 and form a short-circuit connection at frequency ?1 and an open-circuit connection at frequency ?2. The capacitors form an open-circuit connection at frequency ?1 and a short-circuit connection at frequency ?2. This reduces the number of antenna component members mounted on a radio and an antenna's size.

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 hand-held communication device, such as a cellular telephone or a personal digital assistant (PDA), comprises a sensor assembly and an auxiliary input interface. The auxiliary input interface is situated along one or more exterior surfaces of the device and is electrically coupled to processing circuitry within the device. The sensor assembly is removably attached to the one or more exterior surfaces of device and provides signals at the multiple outputs in response to tactile inputs from the user. In one embodiment, an assignment procedure assigns tactile inputs from the user to predefined functions of the device and/or one or more software applications installed in the device. During subsequent operation of the device, each of the specific tactile input executes one or more predefined functions.

Abstract: A zone effective ground-position-responsive wifi hotspot system comprising a first antenna arranged within a zone, responsive to any of a wide variety of various manufacturers different wireless ground-position-indicative RF communication devices, a transmission line for transmitting RF signals to and from the wide variety of various manufacturers different ground-position-indicative RF communication devices utilized within the zone, and a control unit arranged in a link between the first antenna arranged within the zone, and the transmission line, the control unit enabled to be responsive to a variety of different wireless ground-position-indicative RF communication devices, to enable controlled wireless RF communication to and from the zone.

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: A device for multiple band frequency communication may include a chassis, a transceiver for receiving and transmitting voice and data communications over any one of multiple frequency bands, an antenna assembly comprising a single radiator and an antenna matching unit, and an antenna connector provided on the chassis for mounting the antenna assembly to the device and connecting the antenna assembly to the transceiver via a transmission line, wherein the antenna matching unit is provided between the radiator and the antenna connector and comprises a reactive circuit to filter the communications and transform an impedance between the radiator and the antenna connector to match an impedance between the transceiver and the antenna connector for each of the multiple frequency bands. A method and system is disclosed for communicating voice and data communications over multiple frequency bands.

Abstract: An antenna or set of antennae for a wireless device is provided by embedding the antennae into the battery case or generally the surface area of a wireless phone. The antenna connections are through the battery's connections to the wireless device. The antenna can be located at the back surface of the battery or the rear surface of a wireless phone, facing away from the user. An RF shielding device can be embedded into the battery and configured in relation to the antenna such that the RF field intensity and the consequent specific absorption rate for the user is lowered while the outgoing signals of the wireless device remain fully adequate for the function of the wireless device. This feature is preserved for a multi-band operation because a digital phase shifter is used between two radiating antennae. An external case is used as a complement to the wireless phone.

Abstract: A mobile communication device has a number of selectable states, an antenna, and a communication circuit for transmitting and receiving communication signals. The mobile device also includes an impedance matching circuit having impedance matching networks. Each impedance matching network is associated with at least one of the selectable states of the mobile communication device and is configured to optimize the impedance match between the communication circuit and the antenna based on the selectable state of the mobile communication device with which the impedance matching network is associated. A switching network is included for coupling the antenna to the communication circuit together using one of the impedance matching networks based on a selected state of the mobile communication device.

Abstract: An apparatus including an antenna for wireless communications is disclosed. The apparatus comprises an antenna including first and second radiating elements, a circuit adapted to process a signal received from or to be provided to the antenna, and a housing enclosing at least a portion of the circuit, wherein at least a portion of the housing comprises the second radiating element. The second radiating element may forms a base of the housing. Additionally, the second radiating element may be electrically coupled to ground potential. Further, the first radiating element may be situated entirely within the housing, partially within the housing, or entirely external to the housing.

Abstract: A circuit board in a mobile electronic device has a microphone and related amplifier and signal conditioning circuitry mounted thereon. A radio frequency (RF) shield surrounds and isolates the microphone from electromagnetic interference (EMI). The RF shield together with the circuit board forms an acoustic chamber surrounding the microphone. A hole in the RF shield permits acoustic energy to enter the acoustic chamber and reach the microphone.