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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


Phased array antenna

Israel Aerospace Industries

Phased array antenna

Date/App# patent app List of recent F Antenna-related patents
03/26/15
20150085944
 Methods of antenna system control in massive mimo systems patent thumbnailnew patent Methods of antenna system control in massive mimo systems
A multiple input multiple output (mimo) antenna system is implemented for communications in a wireless device. Information regarding the environment surrounding the wireless device may be used to determine which of the mimo antennas are selected such that communications performance is improved.
Broadcom Corporation
03/26/15
20150085742
 Method and  configuring a transmission mode for a backhaul link transmission patent thumbnailnew patent Method and configuring a transmission mode for a backhaul link transmission
A method and a base station are described for transmitting a signal. The base station transmits control information to a relay node through a relay-physical downlink control channel (r-pdcch), and transmits a data to the relay node through a relay-physical downlink shared channel (r-pdsch).
Lg Electronics Inc.
03/26/15
20150085724
 High linearity rf diplexer patent thumbnailnew patent High linearity rf diplexer
A first rf diplexer, which includes a first hybrid rf coupler, a second hybrid rf coupler, a first rf filter, and a second rf filter, is disclosed. The first hybrid rf coupler has a first main port, a first in-phase port, a first quadrature-phase port, and a first isolation port, which is coupled to a primary rf antenna.
Rf Micro Devices, Inc.
03/26/15
20150085708
 Carrier aggregation using multiple antennas patent thumbnailnew patent Carrier aggregation using multiple antennas
Rf front-end circuitry, which includes rf switching and duplexing circuitry, a first rf diplexer, and a second rf diplexer, is disclosed. The rf switching and duplexing circuitry operates in one of a group of rf transmit modes, such that the group of rf transmit modes includes at least one transmit uplink carrier aggregation mode.
Rf Micro Devices, Inc.
03/26/15
20150084814
 Phased array antenna patent thumbnailnew patent Phased array antenna
An antenna element having a vertically stacked structure and a phased array antenna that includes a plurality of antenna elements sharing a common conductive ground plane are described. The phased array antenna also includes a common conductive shell electrically coupled to the common conductive ground plane and extending away there from to encompass the antenna elements.
Israel Aerospace Industries Ltd.
03/26/15
20150083387
 Rf antenna assembly with spacer and sheath and related methods patent thumbnailnew patent Rf antenna assembly with spacer and sheath and related methods
An rf antenna assembly is positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors to be positioned within the wellbore, and having adjacent joined together ends, and first and second rf transmission line segments extending within the first and second tubular conductors and having adjacent joined together ends aligned with the joined together adjacent ends of the first and second tubular conductors.
Harris Corporation
03/19/15
20150080591
 Enhanced flash chamber patent thumbnailEnhanced flash chamber
An enhanced flash chamber with a flash chamber; a microwave source in communication with the flash chamber for providing a quantity of energy to a plurality of antennas within the flash chamber; a fluid chamber positionable within the flash chamber capable of holding a liquid and the plurality of antennas; and transport tubing for transporting a target material for extraction through the fluid chamber where the quantity of energy from the microwave source interacts with the plurality of antennas to heat the liquid held in the fluid chamber to a superheated state and the superheated state of the liquid transfers a portion of the quantity of energy to the target material to extract an extraction product from the target material.. .
03/19/15
20150078488
 Wireless communication  controlling multi-antenna module and related method thereof patent thumbnailWireless communication controlling multi-antenna module and related method thereof
A wireless communication apparatus for coupling to a multi-antenna module comprising a plurality of antennas, the wireless communication apparatus includes: a switching circuit, arranged for selectively changing the connected relations of the plurality of antennas according to a switching signal, so as to make the multi-antenna module generating a plurality of antenna combinations; and a receiving module, coupled to the switching circuit, including: a signal intensity measurement circuit, arranged for measuring signal intensity of a wireless packet received through the plurality of antenna combinations, so as to generate a plurality of measurement results; and an antenna switching determination circuit, during a training state, arranged for choosing a first comparison group comprising at least two antenna combinations from the plurality of antenna combinations for receiving the wireless packet, and determining a better antenna combination according to measurement results of the first comparing group.. .
Realtek Semiconductor Corp.
03/19/15
20150078485
 Method and  automatically tuning an impedance matrix, and radio transmitter using this apparatus patent thumbnailMethod and automatically tuning an impedance matrix, and radio transmitter using this apparatus
The invention relates to a method and an apparatus for automatically tuning an impedance matrix, for instance the impedance matrix seen by the power amplifiers of a radio transmitter using a plurality of antennas simultaneously, and to a radio transmitter using this apparatus. An apparatus for automatically tuning an impedance matrix has 4 user ports and 4 target ports, and comprises: 4 sensing units; a signal processing unit, the signal processing unit estimating real quantities depending on the impedance matrix presented by the user ports, using the sensing unit output signals obtained for 4 different excitations applied successively to the user ports; a multiple-input-port and multiple-output-port tuning unit comprising adjustable impedance devices; and a tuning control unit delivering tuning control signals to the multiple-input-port and multiple-output-port tuning unit, the reactance of each of the adjustable impedance devices being mainly determined by one or more of the tuning control signals..
Tekcem
03/19/15
20150078428
 Techniques for determining covariance measures based on correlation criteria patent thumbnailTechniques for determining covariance measures based on correlation criteria
A method includes providing a plurality of sets of equalizer taps, wherein each set is coupled to a respective one of a plurality of antenna ports; assigning a first plurality of equalizer taps of the sets of equalizer taps to a first subset; determining a first covariance measure associated with the first plurality of equalizer taps of the first subset based on a first correlation criterion; assigning a second plurality of equalizer taps of the sets of equalizer taps to a second subset; and determining a second covariance measure associated with the second plurality of equalizer taps of the second subset based on a second correlation criterion.. .
Intel Ip Corporation
03/19/15
20150077292

Deposited three-dimensional antenna apparatus and methods


A “thin” and cost-effective three-dimensional antenna assembly and methods of use and manufacturing thereof. In one exemplary embodiment, the solution of the present disclosure is particularly adapted for small form-factor portable radio devices, and comprises an antenna (or array of antennas) deposited on a thin preformed flexible or deformable structure using a conductive fluid.
Pulse Finland Oy
03/19/15
20150077286

Elevation monopulse antenna synthesis for azimuth connected phase array antennas and method


Embodiments of the present invention are directed to monopulse radar antenna synthesis and methods thereof. An antenna array includes a number of sub-arrays operatively arranged in a first direction (e.g., azimuth), and each of the sub-arrays includes a number of antenna elements grouped as a first group and a second group adjacent to each other in a second direction substantially perpendicular to the first direction.
Raytheon Company
03/19/15
20150076927

Wireless power supply for rescue devices


The present disclosure may provide an electric transmitter which may he used to provide wireless power transmission (wpt) while using suitable wpt techniques such as pocket-forming. Transmitter may operate as power source for rescue devices where wired power sources are not feasible because local infrastructure may be damaged or destroyed.
Dvinewave Inc.
03/19/15
20150076917

Wireless power supply for logistic services


The present disclosure may provide an electric transmitter which may be used to provide wireless power transmission (wpt) while using suitable wpt techniques such as pocket-forming. Transmitter may operate as power source for electronic devices used in logistic devices such as, postal services, storage services, shipping services, pizza delivery and the like.
Dvinewave Inc.
03/12/15
20150072719

Mobile terminal, wireless communication system and wireless communication method


Provided is a mobile terminal, which transmits feedback signals when performing transmission power control with a base station. The mobile terminal is provided with: a plurality of antennas; a calculation unit, which obtains reception qualities based on known signals and signals received from at least one of the antennas; and a feedback information determining unit, which determines feedback information based on the reception qualities.
Kyocera Corporation
03/12/15
20150071270

Method and system for accessing an occupied wi-fi channel by a client using a nulling scheme


A method and system for overriding carrier-sense-multiple-access/collision-avoidance (csma/ca) without harming the traffic that occupies the channel are provided. The system and method may include for example detecting at a communication node having a plurality of antennas, a preamble transmitted by a co-channel neighboring node operating in compliance with ieee 802.11 standard within a clear channel assessment (cca) range of the communication node; and setting uplink transmit weights of the antennas of the communication node, to isolate the communication node from the neighboring node after the neighboring node has transmitted the preamble, to allow the communication node to access the co-channel, by keeping a transmitted signal level of the communication node as received by the neighboring node, below the cca signal level at one or more of the antennas of said neighboring node.
Magnolia Broadband Inc.
03/12/15
20150071253

Method, codebook and base station for precoding


A method, a codebook, and a base station (bs) for precoding are provided. The precoding method includes: obtaining a total uplink power of a user equipment (ue); if the total uplink power is greater than ¾ of a rated total transmit power of antennas, selecting a codeword from a first codebook with imbalanced power between layers; otherwise, selecting a codeword from the first codebook and a second codebook with balanced power between layers, so as for precoding data to be transmitted according to the selected codeword..
Huawei Technologies Co., Ltd.
03/12/15
20150070241

Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage


An antenna array system provides simultaneous 360° coverage and includes butler matrix beam forming networks connected to an antenna array, which includes narrow and/or broadband elements, and multiple transmitters, receivers, or transceivers to allow for 360° transmission and/or reception. The antenna array system can provide multiple beams, such as without limitation 8 or 16 beams, which can vary in beam crossing and/or overlap to provide simultaneous 360° coverage.
03/12/15
20150070229

Antenna array structure with differing antennas


An antenna array structure includes a plurality of antennas, wherein a first antenna has a first geometric shape, provides a first radiation pattern, and has a first frequency bandwidth. A second antenna has a second geometric shape to provide a second radiation pattern and has a second frequency bandwidth.
Broadcom Corporation
03/12/15
20150070217

Microwave radio direction finding system


The microwave radio direction finding system includes two six-port (sp) circuits and 2×2 printed patch antennas, each of the sp circuits having a pair of the patch antennas connected to their inputs, one pair being separated horizontally in a cartesian plane, the other pair being separated vertically. The output ports are connected to differential amplifiers that produce in-phase and quadrature signals, which are digitized and input to a digital signal processor, which computes the difference in phase for the signals received at each pair of antennas.
King Fahd University Of Petroleum And Minerals
03/05/15
20150063486

Method and device for radio reception using a plurality of antennas and a multiple-input-port and multiple-output-port amplifier


The invention relates to a method for radio reception using a plurality of antennas and a multiple-input-port and multiple-output-port amplifier. The invention also relates to a receiver for radio communication using this method.
Tekcem
03/05/15
20150063289

Method for transmitting sounding reference signal in mimo wireless communication system and apparatus therefor


A method for transmitting a sounding reference signal in a mimo wireless communication system and an apparatus therefor are disclosed. The method for transmitting sounding reference signals (srss) in a mimo wireless communication system comprises receiving sounding reference signal parameters from a base station; receiving information of the number of sounding reference signals which will be transmitted at a transmission time instant from the base station; if a plurality of sounding reference signals are provided, generating the sounding reference signals corresponding to each of the plurality of antennas by using the sounding reference signal parameters; and transmitting the generated sounding reference signals to the base station through their corresponding antennas at a specific transmission instant..
Lg Electronics Inc.
03/05/15
20150063271

Receiving apparatus and receiving method


A receiver receives, using a plurality of antennas, a multiplexed signal that includes (i) a first ofdm modulation signal with a subcarrier carrying a symbol including multiplex information and a subcarrier carrying a pilot symbol and a subcarrier carrying a data symbol and (ii) a second ofdm modulation signal with a subcarrier carrying a symbol including multiplex information and a subcarrier carrying the pilot symbol and a subcarrier carrying the data symbol. A decoder uses the symbol including multiplex information and decodes the data symbol..
Wi-fi One, Llc
03/05/15
20150063268

Beamforming codeword exchange between base stations


A first base station receives from a second base station at least one message comprising beamforming information indicating at least one second beamforming codeword. The at least one second beamforming codeword has a number of rows or columns equal to or less than a number of antenna ports employed by the second base station for beamforming.
Ofinno Technologies, Llc
03/05/15
20150061955

Ultra-broadband antenna array with constant beamwidth throughout operating frequency band


An antenna array includes a plurality of antenna elements configured in a flare such that each of the plurality of antenna elements is uniformly spaced apart from at least one adjacent antenna element. Each of the plurality of antenna elements is coupled in a common area, and each of the plurality of antenna elements extends radially outward from the common area.
03/05/15
20150061930

True time delay compensation in wideband phased array fed reflector antenna systems


Systems, devices, and methods for determining and applying true time delay (ttd) values for compensating for free-space path length differences between a phased array and a reflector in wideband communication are disclosed. Ttd values are determined for individual and groups of antenna elements in phased array fed reflector (pafr) antennas based distances from a focal region of the reflector.
Viasat, Inc.
03/05/15
20150061682

Shielded antenna for a downhole logging tool


A downhole logging tool includes a tool body having a co-located set of antennas located on the tool body and first and second antennas formed from respective first and second pairs of coil windings having a closed-loop pattern. Both the first and second pair of coil windings are arranged on diametrically opposed antenna sections.
Schlumberger Technology Corporation
02/26/15
20150057041

Blind spectrum sensing based on maximum correlation coefficients and use thereof


A method includes performing blind spectrum sensing of a frequency band to determine whether a primary user is using the frequency band. The blind spectrum sensing is based at least in part on a comparison between a detection statistic based on a maximum correlation coefficient and a detection threshold based on theoretical computation of a distribution of the detection statistic.
Nokia Corporation
02/26/15
20150056932

Radio apparatus, and method and program for controlling spatial path


A pdma terminal (1000) establishes communication by forming a plurality of spatial paths to another single radio apparatus. A plurality of antennas constituting an array antenna are divided into a plurality of subarrays corresponding to the plurality of spatial paths respectively.
Hera Wireless S.a.
02/26/15
20150055735

Multi-user mimo receiver and 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.
02/26/15
20150055485

Method by which terminals in wireless communication systems receive downlink control channels and same


The present invention relates to a method by which terminals in a wireless communication system receive control channels. More particularly, the method includes the steps of: receiving control information that includes the transmission mode for the control channel and information about the number of antenna ports through a broadcast channel from a base station; and receiving the control channel on the basis of the control information..
Lg Electronics Inc.
02/26/15
20150054625

Method and apparatus to detect transponder tagged objects, for example during medical procedures


The presence or absence of objects (e.g., medical implements, medical supplies) tagged with transponders may be determined in an environment in which medical procedures (e.g., surgery) are performed via an interrogation and detection system which includes a controller and a plurality of antennas positioned along a patient support structure. The antennas may, for example, be positioned along an operating table, bed, a mattress or pad or a sheet and may be radiolucent.
Rf Surgical Systems, Inc.
02/26/15
20150054506

Magnetic resonance coil, device and system


The embodiments relate to a magnetic resonance coil for a magnetic resonance device with a measuring chamber for an examination object and a cylindrical birdcage antenna arrangement having a plurality of antenna elements disposed at least in some areas around a measuring chamber in the form of circumferential antenna rings or axial outer rods connecting the rings. The antenna elements include electric components, e.g., reactive capacitive and/or inductive systems.
02/19/15
20150050962

Radio base station and power control method


A radio base station including: each of communication processing components being coupled to each of antennas forming each of sectors for a radio communication respectively, each of the communication processing components including communication processors being configured to perform each of functions for the radio communication and control each of radio resources for each of the functions respectively, and a control processor configured to select a first communication processing component and a second communication processing component respectively, select a first communication processor from the communication processors in the first communication processing component, transfer a radio resource of the radio resources that is controlled by the first communication processor to a second communication processor that is in the second communication processing component and performing a same function as the first communication processor, and upon transferring the radio resource of the radio resources, reduce a power of the first communication processor.. .
Fujitsu Limited
02/19/15
20150050957

Method and system for managing transmitting power of communications devices equipped with a plurality of antennas


A method for managing transmitting power of communications devices equipped with multiple antennas. The method enables a first antenna configuration of the plurality of antennas in accordance with a first pre-determined rule.
Mediatek Singapore Pte. Ltd.
02/19/15
20150049831

Precoding processing method and user equipment


Generated according to the first codebook vector, where a is a (nt/)×1 vector composed of a first half of elements of the first codebook vector, b is a (nt/2)×1 vector composed of a last half of elements of the first codebook vector, and nt is a positive even number; and sending an index number of the codebook vector to a base station, whereupon the base station uses the codebook vector corresponding to the index number to perform precoding processing for the data to be transmitted by the antennas. Embodiments of the present invention make the codebook set compatible with two types of antenna configuration modes..
02/19/15
20150049829

Configurable spatial channel information feedback in wireless communication system


A method for configurable spatial channel information feedback in wireless communication systems is disclosed including receiving, at the wireless communication device, transmission from a plurality of antennas, receiving an indication of a feedback mode for feeding back spatial channel information that is based on correlations among at least some of the plurality of antennas, decomposing a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two kronecker components, and feeding back parameters representative of the kronecker components according to the feedback mode indicated.. .
Motorola Mobility Llc
02/19/15
20150049696

Communication device, communication system, and communication method


This communication device that can, for each timeslot, switch the communication partner for performing wireless communication, is characterized by being provided with: a plurality of antennas including at least one directional antenna; at least one communication circuit that transmits/receives a signal with the communication partner using the antennas; and a control unit that allocates the communication circuit and the antennas used in wireless communication on a timeslot-by-timeslot basis.. .
Yokogawa Electric Corporation
02/19/15
20150049688

Communication control method, user terminal, and base station


A communication control method is applied to a mobile communication system including a base station that transmits a downlink signal through a plurality of antenna ports, and a user terminal that feeds back precoder matrix information to the base station, the downlink signal being precoded by using a precoder matrix, the precoder matrix information being indicating a precoder matrix preferably used in a downlink. The communication control method comprises: a step of feeding back, by the user terminal, correction value information for correcting the precoder matrix information to the base station when the precoder matrix information is fed back or after the precoder matrix information is fed back..
Kyocera Corporation
02/19/15
20150048995

Antenna apparatus


An antenna apparatus includes a ground plane having a rectangular shape in plan view, and four inverted f antenna elements configured to be placed on a surface of the ground plane and to be arranged in a symmetrical manner with respect to the central point of the ground plane in plan view, wherein each of the four inverted f antenna elements includes a short strip extending from one end of a main strip to the short end, a feeding strip, an open strip configured to extend toward the open end from the other end of the main strip to a position placed at a second height lower than the first height, and an end strip configured to extend from a distal end of the open strip to the open end and placed parallel to the ground plane at the second height.. .
Fujitsu Limited
02/19/15
20150048976

Portable electronic system with improved wireless communication


The application relates to a portable electronic system comprising a first electronic device and an auxiliary device. The first electronic device comprises a first antenna defining a first spatial direction, and a first wireless unit operationally coupled to the first antenna.
Oticon A/s
02/12/15
20150045091

Wireless module and wireless communication apparatus


Non-contact charging is performed with an opposing apparatus and wireless communication is performed at a high speed with the opposing apparatus by a simple configuration, without performing a highly accurate alignment with the opposing apparatus. The wireless communication apparatus includes a non-contact charging unit and a wireless communication unit.
Panasonic Corporation
02/12/15
20150044977

Method and wireless communication device for using an antenna as a sensor device in guiding selection of optimized tuning networks


A method and system performs antenna tuning using detected changes in antenna self-capacitance in a wireless communication device. A modem detects changes in antenna self-capacitance by utilizing multiple antenna elements.
Motorola Mobility Llc
02/12/15
20150043763

Rf antenna and hearing device with rf antenna


The present disclosure relates to an rf antenna adapted to receive and/or transmit electromagnetic rf signals within a first frequency range enclosing a first frequency of resonance of the rf antenna, the rf antenna comprising: an electrically conductive antenna element having a feed for electrically connecting to an rf transmitter and/or an rf receiver; an electronic component adapted to receive and/or provide one or more electric signals from/to an electronic circuit within a second frequency range not overlapping the first frequency range; and one or more electric leads electrically connected to lead the one or more electric signals between the electronic component and the electronic circuit, each of the one or more electric leads being electrically connected to the electronic circuit through a respective inductor adapted to reflect and/or attenuate signals within the first frequency range and pass signals within the second frequency range.. .
Oticon A/s
02/12/15
20150043670

Radio apparatus and operating the same


Channel activity and subsequent access is determined by antenna selection. A sensing period is allocated into slots, dependent on the number of available antennas.
Kabushiki Kaisha Toshiba
02/12/15
20150043474

Radio base station apparatus, user terminal, radio communication system and radio communication method


The present invention is designed to provide demodulation reference signals that are suitable for an extended downlink control channel. The radio base station apparatus of the present invention has a multiplication section that multiplies downlink control information allocated to an extended downlink control channel resource region in a resource block, by a user terminal-specific weight, and a reporting section that reports one group, among a plurality of groups that are configured by selecting varying antenna ports from a plurality of antenna ports corresponding to the number of transmission layers of a demodulation reference signal, to the user terminal, and in each group, the extended downlink control channel resource regions in the resource block and the antenna ports to constitute the group are associated with each other, and the multiplication section multiplies a demodulation reference signal corresponding to an antenna port in the one group that is associated with the extended downlink control channel resource regions where the downlink control information is allocated, by the weight..
Ntt Docomo, Inc.
02/12/15
20150043463

Communication control method, user terminal, and base station


A communication control method is applied to a mobile communication system including a base station that transmits a downlink signal through a plurality of antenna ports, and a user terminal that feeds back precoder matrix information to the base station, the downlink signal being precoded using a precoder matrix, the precoder matrix information indicating a precoder matrix preferred to be used in a downlink. The communication control method comprises: a step a of notifying, by the user terminal, the base station of antenna port information indicating an antenna port with low degree of contribution at a time of transmission from the base station when the precoder matrix information is fed back to the base station..
Kyocera Corporation
02/12/15
20150042513

Broadband low-beam-coupling dual-beam phased array


Broadband slot-coupled stacked patch antenna elements are capable of continuous broadband operation between 1.71 ghz and 2.69 ghz. The broadband slot-coupled stacked patch antenna element includes a mid-band radiating patch, a high-band radiating patch, and a low-band resonator with coupling slots capable of resonating at low, mid, and high band frequencies.
02/12/15
20150042339

Thermostabilization of antenna array for magnetic resonance tomography


A device for thermal stabilization of a first electrical characteristic of an antenna array of a magnetic resonance tomograph includes a heat exchanger configured for thermal coupling of a component of the device to a heat source. The device also includes a temperature-dependent second electrical characteristic.
02/05/15
20150038079

Device for wireless communication and wireless communication


The present invention relates to a device for wireless communication and a method for wireless communication. The device for wireless communication, which consists of a front surface having a display unit for displaying a screen thereon, a back surface opposite to the front surface, and a plurality of side surfaces except the front surface and the back surface, includes: a plurality of antennas provided on one surface selected from the plurality of side surfaces; and a near field communication (nfc) module connected to at least one of the plurality of antennas to transceive data and improves the degree of freedom in designing the device for wireless communication while increasing a read range and a read rate of near field communication..
Samsung Electro-mechanics Co., Ltd.
02/05/15
20150036761

Structured mimo codebook


Provided is a method of wireless communication which includes selecting a codebook from a plurality of codebooks in accordance with an antenna characteristic, and transmitting an indication of the selected codebook. Each of the plurality of codebooks is associated with one of a plurality of antenna characteristics.
Qualcomm Incorporated
02/05/15
20150036669

Closed-loop mimo systems and methods


Methods, devices and systems are provided for transmitting and receiving mimo signals. In one embodiment, transmitting of the mimo signals involves pre-coding each of at least two data symbols using a respective pre-coding codeword to preclude a corresponding plurality of pre-coded data symbols.
Apple Inc.
02/05/15
20150035652

File searching system and file searching method thereof


A file searching system includes a file storage device and a terminal device. The file storage device defines a plurality of slots for storing files having radio frequency identification (rfid) tags, the file storage device has a plurality of antennas and associated indicators mounted to a corresponding slot one to one.
Hon Hai Precision Industry Co., Ltd.
02/05/15
20150034721

File storage device


A file storage device stores files with radio frequency identification (rfid) tag attached. The file storage device includes a plurality of antennas and a circuit board.
Hon Hai Precision Industry Co., Ltd.
02/05/15
20150034304

Hydrocarbon resource heating system including balun having a ferrite body and related methods


A system for heating hydrocarbon resources in a subterranean formation having a wellbore therein includes a coaxial transmission line, a balun, and a radio frequency (rf) antenna coupled together in series and configured to be positioned in the wellbore so that the rf antenna heats the hydrocarbon resources in the subterranean formation. The coaxial transmission line includes an inner conductor and an outer conductor surrounding the inner conductor.
Harris Corporation
02/05/15
20150034303

Hydrocarbon resource heating system including sleeved balun and related methods


A system for heating hydrocarbon resources in a subterranean formation having a wellbore therein includes a coaxial transmission line, a balun, and a radio frequency (rf) antenna coupled together in series and configured to be positioned in the wellbore so that the rf antenna heats the hydrocarbon resources in the subterranean formation. The coaxial transmission line includes an inner conductor and an outer conductor surrounding the inner conductor.
Harris Corporation
01/29/15
20150030097

Method and subcarrier and antenna selection in mimo-ofdm system


A method and apparatus for radio resources control in a multiple input multiple output (mimo) orthogonal frequency division multiplexing (ofdm) communication system are disclosed. Radio resources are controlled by producing and applying a respective adaptive modulation and coding to each data stream.
Interdigital Technology Corporation
01/29/15
20150030060

Radio channel data and the use thereof


Apparatus comprises a receiver receiving wireless transmission of a real radio system from at least one base station of a radio system as a function of reception direction. The transmission comprises predetermined data.
Anite Telecoms Oy
01/29/15
20150029059

System and short uhf antenna with floating transmission line


A short, efficient antenna utilizing a floating coax transmission line over ground or overlapping wire feed structure for reduced antenna size for use in handheld radios. An asymmetric transmission line radiator having a length (ltl) is oriented substantially planar to and proximal to a truncated ground plane, and having at one end an input/output connector, and at an other end a feed point at least one of above a ground plane and proximal to its edge.
Motorola Solutions, Inc


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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