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F Antenna patents



      
           
This page is updated frequently with new F Antenna-related patent applications. Subscribe to the F Antenna RSS feed to automatically get the update: related F RSS feeds. RSS updates for this page: F Antenna RSS RSS


Detecting electromagnetic energy for alarm or log using mobile phone devices

Antenna switching apparatus based on spatial modulation

Method and apparatus for transmitting feedback in a wireless communication system

Date/App# patent app List of recent F Antenna-related patents
09/11/14
20140256386
 Mobile device for power reduction and method thereof patent thumbnailMobile device for power reduction and method thereof
A device and a method for saving power in a mobile electronic device are provided. A mobile electronic device includes a plurality of antennas and a transceiver, wherein the transceiver includes a control unit configured to switch to a low power mode to operate in the low power mode, or to operate at least one of the plurality of antennas in the low power mode when a data non-transmission period occurs for a predetermined time in an active state..
09/11/14
20140256375
 Detecting electromagnetic energy for alarm or log using mobile phone devices patent thumbnailDetecting electromagnetic energy for alarm or log using mobile phone devices
A mobile phone is configured to employ existing antennae or other exiting input electronics to receive electromagnetic waves, for detection of energy magnitudes. The mobile phone has wireless receiver electronics to receive, through the antennae, communication signals in a plurality of different communication bands that correspond to the plurality of different frequency ranges.
09/11/14
20140254726
 Antenna switching apparatus based on spatial modulation patent thumbnailAntenna switching apparatus based on spatial modulation
An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information..
09/11/14
20140254705
 Method and apparatus for transmitting feedback in a wireless communication system patent thumbnailMethod and apparatus for transmitting feedback in a wireless communication system
Disclosed are a method and apparatus for transmitting feedback in a wireless communication system. A terminal transmits first csi (channel state information) on a first node combination to a base station, or a terminal transmits second csi on a second node combination to the base station.
09/11/14
20140254702
 Method and apparaptus for transmitting and receiving channel related information patent thumbnailMethod and apparaptus for transmitting and receiving channel related information
The present disclosure relates to a method and an apparatus for transmitting and receiving channel related information. A method of transmitting channel related information of a ue according to an embodiment of the present disclosure includes configuring a sub-channel corresponding to a part of a plurality of antennas of an enb; acquiring a channel estimation error (cee) and a precoding matrix indicator (pmi) corresponding to the sub-channel; and transmitting a sub-channel indicator (si) indicating the sub-channel, according to the cee and the pmi.
09/11/14
20140254507
 Antenna control system and method patent thumbnailAntenna control system and method
A wireless router applying an antenna control method includes a number of antennas and communicates with a number of terminal devices via the antennas. The antenna control method includes detecting a current bandwidth bcur of each terminal device communicating with the wireless router and determining a maximum bandwidth bmax of each of the terminal devices, computing a weighted sum sumb of the bandwidths of the terminal devices according to the detected current bandwidth bcur and the maximum bandwidth bmax of each terminal device, comparing the weighted sum sumb of the bandwidths with a first preset value, and turning on or turning off at least one of the antennas according to the compared result.
09/11/14
20140253405
 Antenna of inverted f antenna type integrated into a printed card, and system patent thumbnailAntenna of inverted f antenna type integrated into a printed card, and system
An ifa type antenna is integrated into a printed card, the printed card having a main-extension plane. The ifa type antenna has a first electrically conducting element, serving as earth plane, a second electrically conducting element, serving as radiating element of the antenna, an electrically conducting connection, serving to short-circuit the first electrically conducting element and the second electrically conducting element, and an excitation element being in electrical contact with the second electrically conducting element.
09/11/14
20140253378
 Quad-sector antenna using circular polarization patent thumbnailQuad-sector antenna using circular polarization
Systems and methods for providing a mimo capable antenna with unique properties are provided herein. In some embodiments, a 4×4 mimo capable antenna is provided with unique properties.
09/04/14
20140248903
 Facilitation of determination of antenna location patent thumbnailFacilitation of determination of antenna location
Assisted global positioning system (agps) information is retrieved from mobile devices and employed to facilitate antenna location. Measurement information, including agps information, can be received from a plurality of mobile devices dispersed over a geographical region.
09/04/14
20140247860
 Codebook and codebook search patent thumbnailCodebook and codebook search
Briefly, in accordance with one or more embodiments, a codebook used to provide a precoding matrix indicator and/or channel state information comprises one or more rank-1 codewords and at least one or more rank-2 codewords exhibiting a nesting property with the rank-1 codewords, and one or more rank-2 codewords not exhibiting a nesting property with the rank-1 codewords. Further, the rank-1 codewords may include at least some discrete fourier transform (dft) vectors, and at least some vectors that are optimized for a cross polarize array of antennas if the array of antennas is cross polarized.
09/04/14
20140247797
Base station and communication control method
A communication section controls the transmission directivity of a plurality of antennas, based on a known signal transmitted from a communication terminal. A radio resource allocating section allocates a downlink radio resource and allocates an uplink radio resource.
09/04/14
20140247775
Initializing reference signal generation in wireless networks
A transmitting node uses different reference signal sequences for different types of enhanced control channels. An example method begins with generating (1410) a first reference signal sequence, from a first initialization value, and generating (1420) a second reference signal sequence, from a second initialization value.
09/04/14
20140247194
Gnss antennas
A global navigation satellite system (gnss) antenna system includes interference mitigation and multipath canceling. Multiple ports or phased arrays of antennas can be provided.
08/28/14
20140242930
Multi-array antenna
In one example, the present disclosure describes an antenna system with at least two linear antenna arrays, each having a plurality of antenna elements. Each array is designed to transmit and receive signals from different respective spectrum bands.
08/28/14
20140242918
Wireless device with antenna array and separate antenna
An apparatus (e.g., a wireless device) with an antenna array and a separate antenna is disclosed. The antenna array includes a plurality of antenna elements having a first antenna beam.
08/28/14
20140242914
Method and apparatus for calibrating multiple antenna arrays
A method includes transmitting a calibration command to multiple antenna arrays. Each antenna array includes a plurality of antenna elements, a plurality of transmitter and receiver channels, and a calibration circuit comprising a calibration receiver and a calibration transmitter.
08/28/14
20140241446
Apparatus and method for dynamically altering a downlink mimo configuration
A mobile wireless device may dynamically alter a downlink mimo function by switching it on and off, or switching between different downlink mimo configurations, such as 2×mimo and 4×mimo. Still further, a mobile device having greater than two antennas may dynamically select a subset of the antennas to be used to receive a mimo transmission, and further, enable a mobile device to request a subset of antennas at a base station to be used for the mimo transmission.
08/28/14
20140240195
Electronic device with diverse antenna array having soldered connections
A wireless electronic device may be provided with antenna structures. The antenna structures may be formed from an antenna ground and an array of antenna resonating elements.
08/28/14
20140240189
Antennas using over-coupling for wide-band operation
Systems and methods in which antenna system configurations use over-coupling between a plurality of antenna elements for effectively providing wide-band operation are shown. Such over-coupling comprises a multiple antenna element configuration in which adaptation to one antenna element (e.g., an influencing antenna element) results in substantial operational frequency band adaptation to a second antenna element (e.g., a respondent antenna element).
08/28/14
20140240185
Multiband rf antenna
This invention relates to a miniature multiband antenna, in which a substrate being the carrier of a conductive element, and the conductive element configured as a layer onto the substrate and being the radiator in form of a slot, and a conductive layer configured onto the substrate and being the antenna feed line in form of a polygon patch area. Alternative embodiments illustrate use of slot type—and meander type antennas.
08/28/14
20140240178
Portable terminal with antenna device for display element or display assembly including flexible functional region
A portable terminal is provided. The portable terminal includes a flexible display element, a first antenna element disposed at a first region on the display element, a second antenna element disposed at a foldable second region on the display element to face the first region, and a switch element configured to selectively connect the second antenna element.
08/28/14
20140240097
Methods and apparatus for ceiling-mounted rfid-enabled tracking
Systems and methods for tracking a subject using radio-frequency identification (rfid). In an embodiment, an antenna array comprising a plurality of articulating brackets and a plurality of antennas is provided.
08/28/14
20140238631
Rf aperture coldplate
An rf aperture coldplate for positioning in heat transfer proximity to heat-generating elements of an rf antenna system is presented. The rf aperture coldplate has a front side and a rear side.
08/21/14
20140235260
Antenna to transceiver mapping of a multimode wireless device
Various arrangements for mapping antennas to transceivers are presented. A plurality of antennas may be present.
08/21/14
20140233665
Communications terminal, and a method for selecting a transmit antenna for a transmission to a radio communications network
A communications terminal may include: a plurality of antennas; and a selection circuit configured to select at least one antenna of the plurality of antennas as a transmit antenna for a transmission to a radio communications network, wherein a selection of the transmit antenna may be based on a selection criterion.. .
08/21/14
20140233552
Transmitting apparatus, receiving apparatus, transmitting method and receiving method that wirelessly communicate with each other using plurality of antennas
An acquiring unit acquires a channel matrix, which has elements representing the channel characteristics between a plurality of antennas at a transmitting side and a plurality of antennas at a receiving side, respectively. A first derivation unit derives not only a singular value matrix that is a diagonal matrix where singular values are arranged, by subjecting the channel matrix to the singular value decomposition, but also a weight matrix which is a unitary matrix corresponding to the singular value matrix.
08/21/14
20140232596
Antenna array calibration
An apparatus for performing calibration of an antenna array having a plurality of antennas including at least a first antenna and a second antenna. The apparatus includes a global navigation satellite system receiver configured to measure a first phase of a first signal received by the first antenna from a satellite and a second phase of a second signal received by the second antenna from the satellite.
08/21/14
20140232591
System and method for multiple spotlight synthetic radar imaging using random beam steering
A spotlight synthetic aperture radar (sar) image is generated by directing randomly a beam of transmitted pulses at a set of two or more areas using a steerable array of antennas. Each area is illuminated by an approximately equal number of the transmitted pulses.
08/21/14
20140231612
Antenna mounting assembly for a vehicle with a sloped body panel
Embodiments are provided of antenna mounting assemblies and vehicles that include such assemblies. In one aspect, an antenna mounting base for supporting a vehicle antenna with respect to a vehicle body panel that defines a panel aperture comprises: an antenna mounting portion; a flange extending from a surface of the antenna mounting base; and at least one tab defining a recess with the flange, the recess being sized and configured to mateably engage at least a portion of the body panel that borders the panel aperture..
08/21/14
20140231418
Microwave heating device
An aspect of the present invention provides a microwave heating device for an object having a plurality of parts, the microwave heating device including: a plurality of antennas which emits microwaves to a heating chamber inside; a sensor which detects information from a block model assigned the information indicating a characteristic of each of the parts; a display and input operation unit configured to receive an input of heating conditions for the object; an electromagnetic field analysis unit configured to derive a heating profile by electromagnetic field analysis based on the information detected by the sensor and the heating conditions inputted to the display and input operation unit, the heating profile including microwave emitting conditions for the object; and a control unit configured to control performance of the microwaves emitted from the antennas based on the derived heating profile.. .
08/21/14
20140231416
Radio frequency antenna assembly for hydrocarbon resource recovery including adjustable shorting plug and related methods
A radio frequency (rf) antenna assembly configured to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery may include an rf transmission line and an rf antenna coupled to the rf transmission line. The rf antenna assembly may also include an adjustable balun that may include a tubular balun housing surrounding the rf transmission line and defining a space therebetween.
08/14/14
20140227985
Transmission and reception of high-speed wireless communication using a stacked array antenna
Methods of transmitting and receiving wireless signals using a compact antenna having an array of compactly arranged emitters/receivers. Wireless signals are transmitted from an antenna feed to the plurality of emitters/receivers in any appropriate band, such as the 5.15 to 5.85 ghz band and/or the 2.40-2.48 ghz band.
08/14/14
20140226762
Multi-user mimo receiver and method for receiving data units over a wideband channel
A multiple-input multiple output (mimo) receiver includes circuitry to receive a mimo transmission through a plurality of antennas over a channel comprising two or more 20 mhz portions of bandwidth. The mimo transmission comprises a plurality of streams, each transmitted over a corresponding spatial channel and configured for reception by multiple user stations.
08/14/14
20140226760
Method of demodulating modulation signals
A method of generating modulation signals is disclosed including generally three steps. A plurality of modulation signals are generated, each of which is to be transmitted from a different one of a plurality of antennas in an identical frequency band, wherein each modulation signal includes a pilot symbol sequence including a plurality of pilot symbols used for demodulation.
08/14/14
20140226744
Communication channel optimization systems and methods in multi-user communication systems
Systems and methods of optimizing communication channels in multi-user communication systems are provided. Coding weights are determined based on communication channel state information for communication channels between a transmitter and multiple receivers.
08/14/14
20140225805
Conformal phased array antenna with integrated transceiver
A system according to one embodiment includes a plurality of antennas configured on a conformal material, the conformal material capable of conforming to a contour of a platform; and driver circuitry coupled to each of the plurality of antennas, wherein the driver circuitry comprises a plurality of transceivers, the plurality of transceivers configured to provide independently adjustable phase delay in the coupling to each of the plurality of antennas.. .
08/14/14
20140225798
Reflector antenna for a synthetic aperture radar
The invention relates to a reflector antenna for a synthetic aperture radar, having a reflector (20) which comprises a reflector surface (22), a vertex (26), and an optical axis (24) extending outwards therefrom. The reflector antenna also has a plurality of antenna elements (18) arranged side by side and in a row, for transmitting radar transmission signals and receiving radar reception signals produced from a reflection on a surface (14).
08/14/14
20140224472
Apparatus for heating hydrocarbons with rf antenna assembly having segmented dipole elements and related methods
The apparatus includes an rf antenna assembly to be positioned within a wellbore and coupled to an rf source. The rf antenna assembly includes a first tubular dipole element having opposing proximal and distal ends, an rf transmission line extending through the proximal end of the first tubular dipole element and including an inner conductor, an outer conductor, and a dielectric therebetween.
08/07/14
20140220891
Apparatus and method for controlling functions of a mobile phone via nfc communication with an external rf reader
Disclosed herein is an apparatus for controlling the ringtone, camera, and communication functions of a mobile terminal using a near field communication (nfc) chip module and an external radio frequency (rf) reader. The apparatus includes an nfc chip module, a base band chip, and a usim card.
08/07/14
20140219404
Implementing blind tuning in hybrid mimo rf beamforming systems
A system and a method for applying a blind tuning process to m antennas coupled via n beamformers to a multiple input multiple output (mimo) receiving system having n channels, wherein m>n, are provided herein. The method includes the following steps: periodically measuring channel fading rate at a baseband level to determine the number of antennas l out of k antennas connected to each one of the beamformers, to be combined at each one of the n beamformers; assigning the antennas to the subset l according to some criteria such as best quality indicator; repeatedly applying a tuning process to l antennas in each one of the n beamformers..
08/07/14
20140219389
Signal generating method and signal generating apparatus
A transmission method for simultaneously transmitting a first modulated signal and a second modulated signal at the same frequency includes performing precoding on both signals using a fixed precoding matrix and regularly changing the phase of at least one of the signals. In this method, the power ratio between a plurality of signals transmitted from a plurality of antennas at the same frequency and at the same time differs from the power ratio between a plurality of pilot signals transmitted from the plurality of antennas at the same frequency and at the same time, whereby the accuracy of channel estimation by a reception device is improved..
08/07/14
20140219375
Method and device for feeding back channel information
Disclosed are a method and device for feeding back channel state information. The method includes: generating a first codebook by using the number of antennae in each row of a planar antenna array; generating a second codebook by using the number of columns of the planar antenna array; and feeding back the channel state information by using the first codebook and the second codebook.
08/07/14
20140218259
Antenna for a radar detector
An antenna for a radar detector according to the present invention comprises: a power supply unit; first and second branches branched from the power supply unit; a first band patch antenna connected to the first branch and having first band properties; a second band patch antenna connected to the second branch and having second band properties; a second band stub placed between the power supply unit and the first band patch antenna on the first branch; and a first band stub placed between the power supply unit and the second band patch antenna on the second branch. The antenna for the radar detector according to the present invention may match one power supply unit without damaging the properties of a plurality of antennas that have different frequency properties..
08/07/14
20140218245
Antenna and method for steering antenna beam direction
An antenna comprising an imd element and one or more parasitic and active tuning elements is disclosed. The imd element, when used in combination with the active tuning and parasitic elements, allows antenna operation at multiple resonant frequencies.
08/07/14
20140218167
Wirelessly sensed and controlled locking device
A wirelessly sensed and controlled locking device is identified, sensed and controlled by a mobile electronic device to be locked or unlocked. The mobile electronic device comprises a battery, an information transmission chip and a first rf antenna.
08/07/14
20140216726
Apparatus for heating a hydrocarbon resource in a subterranean formation including a fluid balun and related methods
An apparatus is provided for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein. The apparatus includes a radio frequency (rf) antenna configured to be positioned within the wellbore, a transmission line configured to be positioned in the wellbore and coupled to the rf antenna, and an rf source configured to be coupled to the transmission line.
08/07/14
20140216724
Hydrocarbon resource recovery apparatus including a transmission line with fluid tuning chamber and related methods
An apparatus for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein is provided. The apparatus includes a radio frequency (rf) antenna configured to be positioned within the wellbore, a transmission line configured to be positioned in the wellbore and coupled to the rf antenna, and an rf source configured to be coupled with the transmission line.
08/07/14
20140216346
Plasma processing apparatus
A plasma processing apparatus includes a processing chamber including a dielectric window; a coil-shaped rf antenna, provided outside the dielectric window; a substrate supporting unit provided in the processing chamber; a processing gas supply unit; an rf power supply unit for supplying an rf power to the rf antenna to generate a plasma of the processing gas by an inductive coupling in the processing chamber, the rf power having an appropriate frequency for rf discharge of the processing gas; a correction coil, provided at a position outside the processing chamber where the correction coil is to be coupled with the rf antenna by an electromagnetic induction, for controlling a plasma density distribution on the substrate in the processing chamber; a switching device provided in a loop of the correction coil; and a switching control unit for on-off controlling the switching device at a desired duty ratio by pulse width modulation.. .
08/07/14
20140216345
Plasma processing apparatus
A plasma processing apparatus includes a processing chamber including a dielectric window; a coil-shaped rf antenna, provided outside the dielectric window; a substrate supporting unit provided in the processing chamber; a processing gas supply unit; an rf power supply unit for supplying an rf power to the rf antenna to generate a plasma of the processing gas by an inductive coupling in the processing chamber, the rf power having an appropriate frequency for rf discharge of the processing gas; a correction coil, provided at a position outside the processing chamber where the correction coil is to be coupled with the rf antenna by an electromagnetic induction, for controlling a plasma density distribution on the substrate in the processing chamber; a switching device provided in a loop of the correction coil; and a switching control unit for on-off controlling the switching device at a desired duty ratio by pulse width modulation.. .
07/31/14
20140210683
Calibrating a retro-directive array for an asymmetric wireless link
The disclosed embodiments relate to a technique for calibrating a retro-directive array. During the calibration process, the system measures a gain g1 through a first pair of antennas in the retro-directive array.
07/31/14
20140210674
Planar inverted f antenna
Provided is a planar inverted f antenna to which a feeding line can be readily connected. Two slits are provided up to locations where input impedance is z (=50Ω), from the open end side of a main conductive plate that functions as an excitation conductive plate.
07/31/14
20140210666
Apparatus, system and method of wireless communication via an antenna array
Some demonstrative embodiments include apparatuses, systems and/or methods of wireless communication via an antenna array. For example, an apparatus may include an antenna array including a plurality of antenna modules arranged along a first axis, an antenna module of the antenna modules including an antenna sub-array coupled to a radio-frequency (rf) chain, the antenna sub-array including a plurality of antenna elements arranged along a second axis, the second axis is perpendicular to the first axis, and the rf chain is to process rf signals communicated via the plurality of antenna elements..
07/31/14
20140210665
Angle of arrival and/or range estimation within a wireless communication device
Angle of arrival and/or range estimation within a wireless communication device. Appropriate processing of communications received by a wireless communication device is performed to determine the angle of arrival of the communication (e.g., with respect to some coordinate basis of the wireless communication device).
07/31/14
20140210486
Antenna system
Broadband antenna system comprising a plurality of antenna elements and a plurality of amplifiers; wherein every antenna element of said plurality of antenna elements is configured for operating in a predetermined frequency range and is associated with an amplifier of said plurality of amplifiers which is configured for said predetermined frequency range; said plurality of antenna elements covering a broadband range.. .
07/31/14
20140210472
Reducing the radio-frequency transmit field in a predetermined volume during magnetic resonance imaging
Embodiments of the invention relate to a magnetic resonance imaging system (300) for acquiring magnetic resonance data (358) from a subject (318) that may comprise an electrically conductive object (e.g. An implant or a medical device).
07/31/14
20140208581
Method of installing artificial impedance surface antennas for satellite media reception
A method for fabricating and installing an artificial impedance surface antenna (aisa) includes locating a substantially flat surface having a line of sight to a satellite or satellites of interest, determining an angle θo between a normal to the substantially flat surface and a direction to the satellite or satellites of interest, selecting an antenna superstrate from a pre-fabbed stock of antenna superstrates, the selected antenna superstrate configured for having a peak radiation within two (2) degrees of the angle θo, laminating the selected antenna superstrate to an antenna substrate to form the aisa, and mounting the aisa on the substantially flat surface.. .
07/24/14
20140206304
Beamforming by sector sweeping
A first plurality of training data units are transmitted via a plurality of antennas of a first station as part of a first transmit beamforming training procedure. Subsequently, a second plurality of training data units are received via the plurality of antennas as part of second transmit beamforming procedure while the first station applies a single receive antenna configuration.
07/24/14
20140206298
Methods for reducing near-field radiation and specific absorption rate (sar) values in communications devices
A method is provided for reducing near-field radiation and specific absorption rate (sar) values in a communications device. The communications device includes a multimode antenna structure transmitting and receiving electromagnetic signals and circuitry for processing signals communicated to and from the antenna structure.
07/24/14
20140206292
Electronic shelf label system
An electronic shelf label (esl) system is disclosed. The esl system includes a shelf, at least an esl, and a radio-frequency (rf) signal transceiver.


Popular terms: [SEARCH]

F Antenna topics: Rf Antenna, Hydrocarbon, Base Station, Access Point, Wireless Communication Device, Basic Service Set, Spatial Multiplexing, Communication System, Multiplexing, Downlink Control Channel, Physical Downlink Control Channel, Allocation, Distributed, Modulation, Demodulation

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