This page is updated frequently with new F Antenna-related patent applications.
|| List of recent F Antenna-related patents
|Method and transmitting reference signal in multiple antenna supporting wireless communication system|
The present invention discloses a method and an apparatus for transmitting a reference signal in a wireless communication system. More specifically, the method comprises configuring a first antenna group on the basis of a plurality of antenna elements configured by a horizontal domain antenna element and a vertical domain antenna element; transmitting a configuration with regard to a specific sub frame to first terminals through a first antenna group; receiving a sounding reference signal (srs) through the specific sub frame from the first terminals; selecting at least one second terminal among the first terminals on the basis of the sounding reference signal; and transmitting a channel state information-reference signal (csi-rs) with respect to the at least one second terminal, wherein the specific sub frame is characterized in that at least a part of a source area is configured by a multicast broadcast single frequency network (mbsfn) sub frame..
Lg Electronics Inc.
|Geographically isolated antennas|
Briefly, in accordance with one or more embodiments, a base transceiver station having a first set of antennas and a second set of antennas geographically separated from the first set of antennas transmits a reference signal to a first device, and receives feedback from the first device. The feedback represents information that can be used to construct a weight adjustment vector.
|System and 3d imaging using a moving multiple-input multiple-output (mimo) linear antenna array|
A method generates a three-dimensional (3d) scene image of a scene using a mimo array including a set of antenna by first selecting a subsets of the antennas as transmit antennas and receive antennas. Radio frequency (rf) signal are transmitted into the scene using the subset of transmit antennas while the mimo array is moving at a varying velocity.
Mitsubishi Electric Research Laboratories, Inc.
|Dual-band inverted-f antenna with multiple wave traps for wireless electronic devices|
A wireless electronic device includes an inverted-f antenna (ifa) having an ifa exciting element, an ifa feed, and a grounding pin. The ifa exciting element is configured to resonate at two different resonant frequencies, when excited by a signal received through the ifa feed.
|Systems and methods for controlling the transmission and reception of information signals at intended directions through an antenna array|
Systems and methods are disclosed herein for controlling communication of information signals at an intended direction that involves (i) obtaining a set of changing weighting solutions for an antenna array having two or more antenna array elements, each of the weighting solutions defining a set of array weights that generates an imposed error as a function of direction in one or more of amplitude, phase, frequency and polarization of an information signal transmitted or received by the antenna array, wherein the imposed error for all of the changing weighting solutions is substantially the same at an intended direction and varies at unintended directions; (ii) selecting one of the changing weighting solutions; (iii) applying the set of array weights of the selected changing weighting solution to a set of antenna signals corresponding to the information signal transmitted or received through the antenna array elements; and (iv) selecting and applying each of the changing weighting solutions to the set of antenna signals according to a selection change rate, so that the information signal is recoverable at the intended direction and unrecoverable at all unintended directions.. .
Altamira Technologies Corporation
|Closely coupled re-radiator compound loop antenna structure|
Source radio frequency energy (rf) is coupled wirelessly (no physical contact) between two compound loop (cpl) antennas or one cpl and another type of antenna across a variety of barriers such as plastic, human tissues, glass, and air. The compound coupling interface created between the two antennas is highly efficient in transferring the rf energy from a source antenna to a destination including a cpl antenna.
|Plasma processing apparatus and plasma processing method|
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, for mounting thereon a target substrate to be processed; a processing gas supply unit for supplying a desired processing gas to the processing chamber to perform a desired plasma process on the target substrate; and 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 apparatus further includes a floating coil electrically floated and arranged at a position outside the processing chamber where the floating coil is to be coupled with the rf antenna by an electromagnetic induction; and a capacitor provided in a loop of the floating coil..
Tokyo Electron Limited
|Radio base station, user terminal and radio communication method|
The present invention is designed so that, in a communication system to employ massive mimo, data signals to which beamforming is applied can be transmitted adequately. A radio base station transmits a data signal to a user terminal by applying beamforming using a plurality of antenna elements, and has a determining section that determines the type of a weight to apply to the data signal for beamforming, a generating section that generates a reference signal which the user terminal uses in channel estimation, a weight control section that controls weights to apply to transmitting signals, and a transmitting section that transmits the data signal and the reference signal, and the weight control section determines whether or not to apply a weight to the reference signal based on the type of the weight..
Ntt Docomo, Inc.
|Antenna device and driving antenna ports of an antenna array|
The disclosure relates to an antenna device, configured to assign antenna beams to radio cells, the antenna device comprising: a set of radio transceivers coupleable to a set of antenna ports of an antenna array, each radio transceiver being configured to drive a respective antenna port of the antenna array when each radio transceiver is coupled to the respective antenna port, wherein the set of radio transceivers is configured to drive the antenna ports to generate at least two antenna beams, wherein each radio transceiver contributes to the generation of each antenna beam.. .
Huawei Technologies Co., Ltd.
|Communication unit, integrated circuit and generating a plurality of sectored beams|
A communication unit comprises a plurality of antenna element feeds (203, 205) for coupling to a plurality of antenna elements of an antenna array, where each antenna element feed comprises at least one coupler; and a plurality of transmitters operably coupled to the plurality of antenna element feeds. At least one transmitter of the plurality of transmitters comprises: an input for receiving a first signal and at least one second signal; beamformer logic arranged to apply independent beamform weights (rcfbf1, rcfbf2) on the first signal and the at least one second signal of the transmitter respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and a signal combiner arranged to combine the first signal and the second signal to produce a combined signal, such as that the combined signal supports a plurality of sectored beams..
Analog Devices Global
Spatial null creation using massive mimo (m-mimo)
In a base station having a massive multiple input multiple output (m-mimo) antenna array, the availability of the m-mimo antenna array is exploited to manage the interference caused by the base station to neighboring cells. In one embodiment, the large number of antenna elements of the m-mimo antenna array are used to create precise transmit and/or receive spatial nulls at specific user equipments (ues) being served by a neighboring cell and/or in select areas of the neighboring cell.
Electronic device with shared antenna structures and balun
An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-f antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or other dielectric substrates, internal metal housing structures, or other conductive electronic device housing structures.
Slot antenna built into a vehicle body panel
Slot antennas built into metallic body panels utilize the vehicle body itself as an antenna radiator. Building the slot antennas directly into the metallic body panels converts the vehicle body from functioning as an rf shield into an rf antenna, which significantly improves mobile communication reception for a wide range of rf communication devices.
Gm Global Technology Operations Llc
Capacitive proximity sensor configuration including an antenna ground plane
Embodiments of a capacitive sensor configuration for proximity detection by a playback device are provided. A example playback device includes a capacitive proximity sensor and a radio frequency (rf) antenna.
Integrated photonic devices based on waveguides patterned with optical antenna arrays
Integrated photonic devices including an optical waveguide patterned with an array of antennas are provided. The small footprint, lightweight, and broadband integrated photonic devices provided can be configured into waveguide mode converters, polarization rotators, perfect absorbers, photodetectors, optical power diodes, nonlinear optical elements, heat-assisted magnetic recorders, optical isolators, and optical circulators..
The Trustees Of Columbia University In The City Of New York
Spatial cognitive radar
A spatial cognitive radar system, method of assembling the radar, and method of selecting antenna elements in the radar are described. The system includes a phased array of a plurality of antenna elements and a plurality of receiver channels, the plurality of receiver channels being a value greater than one and less than a number of the plurality of antenna elements.
Gm Global Technology Operations Llc
Architecture for cascaded signal selection and signal concentration and/or reduction of digital received data by decimation and channel preselection
A magnetic resonance tomography system includes a plurality of mrt plugs for connection of antenna elements, respectively, of one of a plurality of local coils. Due to at least one analog switch matrix, antenna elements respectively connected to fewer than all of the mrt plugs may be connected in an analog fashion to receive signal processing elements of one of a plurality of receive signal processing element blocks respectively having a plurality of receive signal processing elements.
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.
Antenna subset and directional channel access in a shared radio frequency spectrum band
Techniques are provided for accessing a shared radio frequency spectrum band by selecting a subset antennas associated with a successful access procedure for accessing the shared radio frequency spectrum. In some examples, a wireless communication device, such as a network node, may perform a listen before talk (lbt) procedure for each of two or more subsets of antennas associated with the network node, and only those subsets of antennas that pass the lbt procedure are used for transmissions during the associated time period, while other antennas are idle, or used for transmissions on another radio frequency spectrum band during the associated time period.
Radio base station, user terminal and reference signal transmission method
The present invention is designed to improve the received quality of reference signals in user terminals, in small cells that are placed to overlap a macro cell. The reference signal transmission method according to the present invention is a reference signal transmission method in a radio base station that forms a small cell, which is placed to overlap a macro cell, and that has a plurality of antenna ports, and includes the steps of generating a plurality of reference signals that vary per antenna port, and in a reference signal transmission period in which beamforming is not executed, transmitting the plurality of reference signals in a transmission bandwidth that is narrower than in a second transmission period in which beamforming is executed, the reference signals of each antenna port are spread in at least one of the time direction and the frequency direction and transmitted..
Power saving techniques for embms
Power saving techniques for evolved multimedia broadcast multicast service (embms) services are described. In one embodiment, for example, user equipment (ue) may comprise at least one radio frequency (rf) transceiver, at least one rf antenna, and logic, at least a portion of which is in hardware, the logic to receive a system information message comprising multicast/broadcast over single frequency network (mbsfn) area information, determine an mbsfn area identifier (id) of an mbsfn area based on the mbsfn area information, and determine whether to decode a multicast control channel (mcch) for the mbsfn area based on the mbsfn area id and on mbsfn area mapping information.
Patient monitoring involving receiving multiple asynchronous data streams with antenna diversity
A radio frequency (rf) receiving apparatus (10) includes a first and second omnidirectional rf antennas (20) at different spatial locations or orientations, a first and second rf receivers (24), each connected to a corresponding one of the first and second omnidirectional rf antennas (20), and a controller (32) connected to the first and second rf receivers (24). The first and second rf receivers (24) receive and demodulate rf signals of at least first and second carrier frequencies to recover data packets from at least a first device which transmits data packets on the first carrier frequency rf signal and a second device which transmits data packets on the second carrier frequency rf signal.
Compact networking device for remote stations
A tower-mounted networking device facilitates deploying a remote station without having to build a custom station aside a radio tower. The networking device's chassis comprises a mounting bracket, which includes a curved contour for mounting the networking device on the radio tower.
Transmit antenna selection
A set of antennas is selected from a plurality of antennas for transmitting data streams on a plurality of subcarriers based on channel state information of a communications channel between the plurality of antennas and a plurality of receive antennas at a client device, a number of the data streams to be transmitted, and a channel coherence time of the communications channel. A size of the set is equal to or greater than the number of data streams..
Method and system for assigning antennas in dense array
A method and system optimally selecting antenna elements based on the current availability of antenna elements and the current usage of other antenna elements within a two or three dimensional array. The present system and method pertain to an approach to allow the maximal usage of each antenna element while simultaneously reducing the coupling between antenna elements to improve the signal strength in each antenna element by ensuring that antenna elements in the same incident path are not tuned to the same frequency or physically or electrically near elements tuned to identical or adjacent frequencies..
Communication unit and antenna array calibration
A method for calibrating an antenna array coupled to a plurality of transmitters via a plurality of couplers and a plurality of antenna element feeds is described. The method comprises, at a communication unit: selecting and coupling at least one coupler to a calibration receiver in a feedback path in the communication unit; scaling at least one first signal by at least one first beamform weight; applying the scaled at least one first signal to a first transmitter of the plurality of transmitters and routing the scaled at least one first signal via the selected at least one coupler to the calibration receiver; generating a reference signal by selecting and scaling the at least one first signal by at least one second beamform weight substantially equal to the at least one first beamform weight; comparing the at least one first signal scaled with the at least one first beamform weight with the at least one first signal reference signal scaled by the at least one second beamform weight to determine at least one first parameter result; storing the at least one first parameter result of the comparison associated with the first transmitter; repeating for subsequent transmitters the steps of selecting and coupling a further coupler, scaling, applying at least one further signal to a further transmitter of the plurality of transmitters, generating a further reference signal, comparing and storing at least one further parameter result until the plurality of couplers have been selected; and determining at least one calibration correction coefficient from a plurality of parameter results for applying to at least one second signal input to at least one transmitter of the plurality of transmitters coupled to the antenna array to substantially equalise a transfer function of a plurality of transmit paths to antenna element feeds for the at least one second signal having beamform weights applied thereto..
Method, apparatus and system for electrical downtilt adjustment in a multiple input multiple output system
Machine-readable media, methods, apparatus and system for electrical downtilt adjustment in a multiple input multiple output system are disclosed. In some embodiments, an apparatus may comprise an electrical downtilt module to determine an electrical downtilt angle for an antenna port selected from a number of antenna ports based on information from an user equipment (ue); and a codebook module to select a codeword corresponding to the antenna port from a codebook and calculate a weight of an antenna array of the enb through inputting the electronic downtilt angle into the codeword, wherein the codebook has a first number of codewords, each of the codewords having a second number of elements to represent the weight of the antenna array, and wherein each of the codewords corresponds to each of the antenna ports and each of the elements corresponds to each antenna of the antenna array..
Wireless charging device and system for wearable device
A wireless charging device includes a plurality of antennas, a plurality of ac/dc converters, and a controller. The antennas receive power, are located at different positions of an electronic device, and are oriented in different directions.
An antenna module including a plurality of antennas, a cable connecting the plurality of antennas, and a fixing member configured to maintain a shape of the cable, wherein the cable has a zigzag shape.. .
An antenna apparatus includes a plurality of antenna elements. The plurality of antenna elements may be spaced apart from one another, and a direction of current flowing in each of the antenna elements may be set to be oriented outwardly from substantially the center of the plurality of antenna elements in a length direction of each of the antenna elements or inwardly toward the center in the length direction of each of the plurality of antenna elements..
Manually beam steered phased array
A beam steered phased array antenna and system for including the same are described. In one embodiment, the antenna apparatus comprises an array of a plurality of antenna elements, the array having a single moveable feeding point coupled to the antenna elements, where the moveable feeding point is movable with respect to the antenna elements in the array..
Multimode antenna structure
One or more embodiments are directed to a multimode antenna structure for transmitting and receiving electromagnetic signals in a communications device. The communications device includes circuitry for processing signals communicated to and from the antenna structure.
Antenna and wireless communication apparatus
Provided is an antenna capable of maintaining excellent antenna characteristics even in a case where the antenna cannot be disposed at a desired position or a case where a plurality of antennas are disposed in a single apparatus. This antenna is characterized by being provided with: a printed wiring board; an antenna circuit which is disposed in a predetermined end portion of the printed wiring board and sends and receives radio waves of wavelength λ; and a series resonance circuit disposed at a position in the predetermined end portion of the printed wiring board, the position being separated from the antenna circuit by a distance depending on the wavelength λ.
Antenna with integrated condensation control system
In an example embodiment, an airborne radio frequency (rf) antenna device can comprise: a radiating portion; a waveguide portion connected to the radiating portion; a desiccant airflow channel; and an internal air volume located within the rf antenna device and associated with the desiccant airflow channel. The desiccant airflow channel can be integral with the rf antenna device.
Method and operating system in cellular mobile communication system
A base station including a plurality of antenna assemblies in a mobile communication system divides an ultra wideband into a plurality of unit-bands (ubs), forms a plurality of beams by the plurality of antenna assemblies, groups a plurality of beam component carriers distinguished by the plurality of ubs into beam component carriers that belong to the same ub to operate the grouped beam component carriers as a plurality of cells, and configures one cell among the plurality of cells as a cell for movement of a terminal.. .
Base station apparatus and calibration method
When using a plurality of antenna elements, calibration is performed appropriately, while preventing processing time from increasing. A base station apparatus has a plurality of antenna elements; a combiner configured to receive and combine downlink transmission signals, each including a reference signal, from monitor ports provided corresponding to the antenna elements; a channel estimator configured to estimate a channel of the reference signal for each of the antenna elements; and a calibration controller configured to calculate a calibration correction value to be applied to each of the antenna elements based upon channel estimation result..
Mobile communication device
Embodiments described herein relate a mobile communication device and techniques to suppress deterioration of antenna characteristics. The mobile device includes metallic members that are disposed around, or in portions of a casing of the mobile device.
Method for performing multiple access in wireless ofdm cellular systems over multipath wireless channels considering both space and frequency domains, base station and computer programs thereof
The base station 100 comprises a large number of antennas 103 in the form of a two-dimensional array and transmits a given number of signals to a number of users 106, so that each one receives its intended signal (or set of intended signals) without interference to/from the other users 106. The base station 100 includes a scheduler in space-time-frequency dimensions 101 as well as an orthogonal space-frequency processing technique 102 for addressing the users 106.
Wireless distributed antenna mimo
The present disclosure relates to system applications of multicore optical fibers. One embodiment relates to a base transceiver station for a wireless telecommunication system comprising a plurality of antenna units arranged in a mimo configuration and adapted for transmission and/or reception of radio-frequency signals, an optical transmitter in the form of an electro-optic conversion unit for each of said plurality of antenna units, each electro-optic conversion unit adapted for converting an rf signal into an optical signal, a plurality of a single core optical fibers for guiding the optical signals, and at least one first space division multiplexing (sdm) unit adapted for multiplexing said single core optical fibers into respective individual cores of a multicore fiber, or into respective individual modes of a multimode fiber..
Channel state information feedback schemes for fd-mimo
A method of operating a user equipment (ue). The method includes receiving a configuration message comprising a reporting type of channel state information (csi).
Method and node in a wireless communication network
Radio network node and method in a radio network node, for wireless communication with a user equipment in a wireless communication system in antenna streams, wherein the radio network node comprises a plurality of antenna elements, forming a multiple antenna array which is configured for massive mimo transmission. The method comprises beamforming a signal to be transmitted to the user equipment by splitting and phase shifting said signal; detecting a peak of power of one beamformed signal, exceeding a threshold value; manipulating said signal until the peak of power of the signal is lower than said threshold value; and transmitting said signal, to be received by the user equipment..
Apparatus and methods for antenna sharing in a mobile device
Disclosed herein are apparatus and methods for antenna sharing in a mobile device. In certain configurations, a mobile device includes a switching circuit that controls access of a plurality of transceivers to a plurality of antennas.
Rf energy harvester
Disclosed herein is an antenna apparatus for use in harvesting ambient radio frequency, rf, energy. The apparatus comprises one or more rf antenna components arranged to receive rf energy for producing electricity.
System and method to interact with elements of a language using physical objects
The present invention provides a system and method to enable a user to learn a language using physical objects in a highly interactive and free play format. The system uses an interactive surface without a visual electronic display with an array of embedded capacitance sensors and rf antennas operatively linked to a computer system, and a plurality of physical objects, each embedded with an rfid tag and a capacitance tab for activating the capacitance sensor, and each marked with a printed language element such as a letter of the alphabet.
Radio over fiber antenna extender high speed trains
Radio-over-fiber (rof) antenna extender systems and methods are disclosed for high speed train communications which utilize cellular networks as backhauls to avoid the expensive capital expenditure involved in providing broadband internet services in high speed trains. Employing rof technology, on-roof antennas are deployed in strategic configurations to address the drawbacks of utilizing cellar networks as backhauls.
New Jersey Institute Of Technology
Reference signal for a coordinated multi-point network implementation
A system and method of receiving a channel state information reference signal (csi-rs) is presented. At a user equipment, a first csi-rs transmitted from a base station is received.
Transmission method, transmitter apparatus, reception method and receiver apparatus
Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ.
Panasonic Intellectual Property Corporation Of America
Detecting and processing weak signals using an array of antennas
A method for detecting and processing signals may include receiving a weak radio frequency (rf) signal by an array of antennas. The method may also include digitally sampling the weak rf signal from each antenna of the array of antennas and storing the digital samples of the weak rf signal from each antenna.
The Boeing Company
Interference management for a distributed spatial network
A communication network comprising of at least one remote base station; and a plurality of antenna ports connected to the at least one remote base station; wherein the remote base station controls the plurality of antenna ports. The remote base station is configured for defining mutually exclusive entry and exit points for the antenna ports in at least one of time; or frequency.
Indian Institute Of Technology Hyderabad
User device and operating method therefor
An electronic device according to one embodiment of the present disclosure may include a plurality of antennas for transmitting and receiving radio waves, at least one sensor for sensing a physical quantity or physical changes, a sensor hub for outputting a control signal in response to an output from the at least one sensor, and a communication module for controlling wireless communication using the plurality of antennas in response to the control signal. Various other exemplary embodiments are possible..
Samsung Electronics Co., Ltd.
Apparatus and multiple antenna systems
An apparatus including a plurality of radio ports for interconnection with radio circuits, a plurality of antenna ports for interconnection with antennas, interconnection circuitry configured to enable interconnection of each of one or more radio ports to different non-overlapping sets of p antenna ports, where p is controllable and p=2p, p being a whole number; and at least one control port configured to receive a control signal for determining p.. .
Nokia Technologies Oy
Method for performing antenna shuffling using partial antenna array based beamforming in wireless communication system, and apparatus therefor
A method for receiving a signal from a base station by a user equipment, using massive antenna array based beamforming of the base station in a wireless communication system is disclosed. The method includes receiving, from the base station, antenna shuffling information corresponding to a preferred antenna port set among a plurality of antenna ports included in the massive antenna array, measuring channel state information according to the antenna shuffling information and reporting the channel state information to the base station, and receiving, from the base station, a beamformed signal using the preferred antenna port set based on the channel state information, wherein the antenna shuffling information includes at least one of information about a start index of antenna ports included in the preferred antenna port set and information about a direction to which antenna port indexes are allocated..
Lg Electronics Inc.
A method of beamforming a transmission from an antenna array having rows of antenna elements and columns of antenna elements may include determining a first precoding matrix associated with a first orientation. The method may further include determining a second precoding matrix associated with a second orientation.
Communication control apparatus, communication control method and terminal apparatus
[solution] provided is a communication control apparatus including: an acquisition unit configured to acquire a set of weight coefficients for forming a beam aimed at a terminal apparatus, for each of two or more antenna groups each including a portion of a plurality of antenna elements included in a directional antenna capable of forming a three-dimensional beam; and a determination unit configured to determine a set of weight coefficients for the plurality of antenna elements for forming a three-dimensional beam aimed at the terminal apparatus, on the basis of the sets of the weight coefficients for the two or more antenna groups.. .
Base station apparatus, terminal apparatus, wireless communication system, and integrated circuit
Provided are a base station apparatus, a terminal apparatus, a wireless communication system, and an integrated circuit in which the terminal apparatus is able to appropriately combine signals received by a plurality of receive antennas in the wireless communication system for performing nonlinear mu-mimo transmission. The base station apparatus of the invention has a plurality of antennas, is able to apply nonlinear precoding to data signals addressed to a plurality of terminal apparatuses, and spatially multiplexes and transmit the data signals, and based on the data signals and channel information between the base station apparatus and the terminal apparatuses, searches for a perturbation vector to be added to the data signals, and further calculates a covariance matrix of the signals obtained by adding the perturbation vector to the data signals.
Sharp Kabushiki Kaisha
Congruent non-uniform antenna arrays
Systems, methods, and apparatus for forming an antenna array are disclosed. In one or more embodiments, the disclosed method involves determining at least one coprime moduli set based upon a differential phase gain requirement and a differential phase range requirement for the antenna array.
The Boeing Company
Antenna systems with proximity coupled annular rectangular patches
Exemplary embodiments are provided of antennas and antenna systems including the same. In an exemplary embodiment, an antenna generally includes a radiating patch element having an annular rectangular shape.
Laird Technologies, Inc.
Antenna systems with low passive intermodulation (pim)
According to various aspects, exemplary embodiments are disclosed of antenna systems. In an exemplary embodiment, an antenna system generally includes a ground plane and first and second antennas.
Laird Technologies, Inc.
Plasma processing apparatus and plasma processing method
A plasma processing apparatus includes: an evacuable processing chamber including a dielectric window; a substrate supporting unit, provided in the processing chamber, for mounting thereon a target substrate; a processing gas supply unit for supplying a desired processing gas to the processing chamber to perform a plasma process on the target substrate; a first rf antenna, provided on the dielectric window, for generating a plasma by an inductive coupling in the processing chamber; and a first rf power supply unit for supplying an rf power to the first rf antenna. The first rf antenna includes a primary coil provided on or above the dielectric window and electrically connected to the first rf power supply unit; and a secondary coil provided such that the coils are coupled with each other by an electromagnetic induction therebetween while being arranged closer to a bottom surface of the dielectric window than the primary coil..
Tokyo Electron Limited
Short range position sensing device and use
A device for determining the position and orientation of a first body with respect to a second body uses a plurality of radio frequency (rf) transmitters on the first body to transmit a short range signal to one or more rf antennas on the second body. The first and second body are near each other and can be moveably coupled.
Hemisphere Gnss Inc.
Sectorized antennas for improved airborne reception of surveillance signals
A plurality of antenna elements may receive a plurality of signals. Each of the plurality of antenna elements may correspond to at least one of a plurality of sectors of a sectorized antenna.
Honeywell International Inc.
Apparatus and wireless identification
An apparatus for wireless identification receives position information on recognition objects searched by a radar from the radar and identifies recognition objects within a communication area of antennas using signals responding to wireless frequency signals which are transmitted while changing beam directions of the antennas, for the recognition objects searched by the radar.. .
Electronics And Telecommunications Research Institute
Imaging of wellbore pipes using deep azimuthal antennas
A pipe inspection tool includes a body having a central axis, and one or more azimuthal antenna arrays operatively coupled to the body. Each azimuthal antenna array includes a plurality of antenna coils arranged circumferentially about the central axis and comprising an azimuthal array of z-coils or an azimuthal array of separated x-coils and separated y-coils.
Halliburton Energy Services, Inc.
Transmit antenna diversity scheme
Methods, systems, and devices are described for mapping, by a ue, uplink transmissions to one or more antennas of the ue. In one aspect, a ue may receive an uplink resource allocation identifying a set of resource blocks (rbs) from a base station.
Radio communication system and antenna configuration determination method
In a radio communication system performing radio communications using multiple antenna ports, a radio base station apparatus transmits a reference signal from each of the antenna ports in multiple patterns corresponding to a plurality of antenna port configurations formed of single antenna elements or groups of antenna elements, and determines the antenna elements that form the respective antenna ports based upon feedback information supplied from a mobile device that has received the reference signal in the multiple patterns.. .
Ntt Docomo, Inc.
Su-mimo, mu-mimo and beamforming operations using synchronized wlan devices
An apparatus for wireless communication includes a plurality of antennas, a master baseband integrated circuit (bbic) and a slave bbic. The antennas are configured to communicate a multiple-input multiple-output (mimo) signal.
Celeno Communications (israel) Ltd.
Distributed digitally convertible radio (ddcr)
Embodiments of a hybrid unit that supports a configurable number of radio units for a base station in a cellular communications network and embodiments of distributed digitally convertible radio units (ddcrus) for use with the hybrid unit are disclosed. In one embodiment, a hybrid unit for a base station in a cellular communications network is provided.
Telefonaktiebolaget L M Ericsson (publ)
Electronic device with pifa type antenna and wireless signal transmitting/receiving device thereof
Various exemplary embodiments of the present disclosure relate to an electronic device with a planar inverted-f antenna (pifa) type antenna and a wireless signal transmitting/receiving device of the electronic device. The electronic device may include: a pifa (planar inverted-f antenna) type antenna which is transmitting or receiving a wireless signal; a wireless communication unit which is processing the transmitted or received wireless signal; a printed circuit board which is mounted with the wireless communication unit and includes a ground area; a power feeding pad which is electrically connected with a signal transmitting/receiving terminal of the wireless communication unit, and connected with a power feeding section of the pifa type antenna when the pifa type antenna is equipped in the electronic device; a ground pad which is electrically connected with the ground area, and connected with a ground section of the pifa type antenna when the pifa type antenna is equipped in the electronic device; and a connection section which forms an electric route between the power feeding pad and the ground pad.
Samsung Electronics Co., Ltd.
Phased array steering
An antenna array system includes a plurality of antenna array elements and an array controller in communication with each of the array elements. Each array element further includes an antenna, a computing device, and a storage device maintaining a position vector uniquely identifying the position of its antenna within the array.
Node in a wireless communication network with at least two antenna columns
A node in a wireless communication network, the node comprising at least two antenna columns which are physically separated from each other, each antenna column comprising at least one dual polarized antenna element. Each antenna element has a first polarization and a second polarization.
Telefonaktiebolaget L M Ericsson (publ)
Wireless antenna made from binder-free conductive carbon inks
Binder-free conductive carbon ink is printed on flexible polymeric substrates such as pet and paper as an antenna for wireless devices. Without addition of binder, conductivity of the carbon ink can be greatly improved.
Radio frequency identification tag location estimation and tracking system and method
Systems and methods for locating one or more radio frequency identification (rfid) tags are provided. A phase difference of received information signals of illuminated rfid tags is utilized to locate the rfid tags.
Apparatus for hydrocarbon resource recovery including a double-wall structure and related methods
A device for hydrocarbon resource recovery from at least one well in a subterranean formation may include a radio frequency (rf) source, a solvent source, and a double-wall structure coupled to the rf source to define an rf antenna within the at least one well to provide rf heating to the subterranean formation. The double-wall structure may absorb heat from adjacent portions of the subterranean formation.
Hydrocarbon resource heating system including choke fluid dispenser and related methods
A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein may include a radio frequency (rf) source, a choke fluid source, and an elongate rf antenna configured to be positioned within the wellbore and coupled to the rf source, with the elongate rf antenna having a proximal end and a distal end separated from the proximal end. The system may also include a choke fluid dispenser coupled to the choke fluid source and positioned to selectively dispense choke fluid into adjacent portions of the subterranean formation at the proximal end of the rf antenna to define a common mode current choke at the proximal end of the rf antenna..
Method and apparatus to account for transponder tagged objects used during medical procedures
Medical procedure related objects (e.g., instruments, supplies) tagged with transponders may be accounted for in a medical procedure environment via a medical object accounting system using a number of antennas, and optional readers. A first set of antennas may be configured to interrogate sterile fields and/or non-sterile fields which do not encompass a body of a patient to account for the objects proximate a start and an end of a medical procedure.
Rf Surgical Systems, Inc.
Method and transreceiving signal in wireless communication system
One embodiment of the present invention relates to a method for device-to-device transreceiving a signal by a first device in a wireless communication system, wherein the method for transreceiving a signal comprises the steps of: receiving from a second device a discovery signal; determining the number of antenna ports associated with the transmission of the discovery signal; and decoding the discovery signal based on the number of antenna ports, wherein an initial value of a sequence constituting the dmrs is determined by a parameter related to a cell id, and the value of the parameter related to the cell id is selected from a range of values differing from values available to a physical cell id and a virtual cell id.. .
Lg Electronics Inc.
Cluster-based derivation of antenna tilts in a wireless network
Cluster-based optimization of antenna tilts in a wireless network and other related aspects are presented herein. A screening component can receive information indicating wireless conditions of respective wireless access points of a geographical region, select, based on a performance criterion, an access point of the respective wireless access points, and group the access point and an other access point of the respective wireless access points into a representation of a cluster of access points.
At&t Mobility Ii Llc
Wideband angle-of-arrival location determination using bandwidth partitioning
Techniques are presented herein for improving location determination of a wireless device in environments where there can be multipath issues. A wireless device having a plurality of antennas receives a wireless transmission from a target device whose location is to be determined.
Cisco Technology, Inc.
Device and managing spectrum resources, and wireless communication device and method
A device and method for managing spectrum resources and a wireless communication device and method are provided. The method for managing spectrum resources of a wireless communication system according to the disclosure includes: acquiring resource utilization parameter information of a communication device to be managed, the resource utilization parameter information including the number of antennas; and determining spectrum resource allocation to the communication device based on the resource utilization parameter information.
Apparatus and controlling orientation
An orientation control apparatus and a method thereof are provided. The orientation control apparatus for controlling orientation of a phased array antenna includes the phased array antenna and an orientation controller.
Samsung Electronics Co., Ltd
Low cost antenna array and methods of manufacture
In some embodiments, an apparatus may include a conductive planar structure having a plurality of antenna elements and a plurality of cutout portions. The plurality of cutout portions may define a combiner circuit including an output interface and including a combiner circuit coupled between each of the plurality of antenna elements and the output interface..
Anderson Contract Engineering, Inc.
Array antenna rotation mode, and wireless communication terminal and method
The present invention provides an array antenna apparatus for a rotation mode, a wireless communication terminal, and a method thereof. The apparatus according to the exemplary embodiment includes an antenna array including a plurality of antenna elements; and a control unit which determines an antenna pattern in accordance with a transmission/reception characteristic of a signal and assigns a weight to antenna elements in a position corresponding to the determined antenna pattern on the antenna array to implement a rotation mode antenna based on the antenna element to which the weight is assigned..
Electronics And Telecommunications Research Institute
Plasma processing apparatus
A plasma processing apparatus includes: a processing chamber; a substrate holding unit; a processing gas supply unit; a rf antenna having an inner antenna coil and an outer antenna coil; a high frequency power supply unit; at least one floating coil that is in an electrically floating state and provided outside the processing chamber to be coupled to at least one of the inner antenna coil and the outer antenna coil by an electromagnetic induction; and a capacitor. The inner antenna coil includes a single inner coil segment or more than one inner coil segments connected in series, the outer antenna coil includes a plurality of outer coil segments segmented in a circumferential direction and electrically connected with each other in parallel, and the at least one floating coil is positioned between the inner antenna coil and the outer antenna coil in a radial direction..
Tokyo Electron Limited
Static electricity distribution measuring apparatus and static electricity distribution measuring method
A static electricity distribution measuring apparatus (1) according to the present disclosure measures the static electricity distribution on a measurement surface of a measurement target (200), and is provided with: an array antenna (2) that receives electric fields generated from each of a plurality of areas (211) on the measurement surface through vibration; a vibrator (3) that vibrates the measurement target (200) or the array antenna (2); a measurer (4) that measures at least one from among intensity, frequency and phase of the electric fields in each of the plurality of areas (211) received by the array antenna (2); a calculator (5) that calculates an amount of static electricity for each of the plurality of areas (211) based on measurement results by the measurer (4); and a drawer (6) that draws the static electricity distribution on the measurement surface based on the amount of static electricity in each of the plurality of areas (211). The array antenna (2) has a plurality of antenna elements (21) respectively corresponding to the plurality of areas (211)..
National Institute Of Advanced Industrial Science And Technology
Scalable radio frequency communication system
A device implementing the subject scalable radio frequency communication system includes one or more primary radio frequency integrated circuits (rfics) and at least one secondary rfic. Each of the one or more primary rfics is configured to receive an intermediate frequency (if) signal from a baseband processor, upconvert the if signal to a radio frequency (rf) signal, and transmit the rf signal to one or more secondary rfics.
Diversity reception circuit
A diversity reception circuit obtains a synthesized output based on signals received at a plurality of antennas. The diversity reception circuit includes a plurality of plls outputting respective local oscillation signals; a plurality of mixers converting respective received radio frequency signals to low frequency signals; and a switch circuit selecting any one of outputs of the plls and supplying the selected output to at least one of the mixers..
Method and transmitting reference signal in multi-antenna system
A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (ofdm) symbol in a subframe containing a plurality of ofdm symbols; allocating a channel quality indication reference signal (cqi rs) capable of measuring a channel state for each of a plurality of antennas to the selected at least one ofdm symbol; and transmitting the cqi rs, wherein the cqi rs is allocated to an ofdm symbol which does not overlap with an ofdm symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated..
Lg Electronics Inc.
Inverted f-antennas at a wireless communication node
The disclosure relates to a node in a wireless communication arrangement, the node comprising an antenna arrangement that comprises a first and second inverted f antenna. The inverted f antennas comprise a corresponding first and second feed connection, first and second ground connection and a corresponding first and second radiating element mainly extending from the respective ground connection along a corresponding first and second longitudinal extension.
Telefonaktiebolaget L M Ericsson (publ)
Multiband antenna structure
The present disclosure relates to a multiband antenna structure which is capable of preventing interference between individual antennas in an antenna structure including a plurality of antennas having different shapes and bandwidths and maintaining a high level of isolation, although a distance between the antennas is reduced. A multiband antenna structure is capable of increasing a level of isolation by directly connecting an antenna connected to one feeding point and a ground coupling antenna (having a high frequency band) arranged adjacent to antenna connected to the feeding point..
Antenna window and antenna pattern for electronic devices and methods of manufacturing the same
A housing for an electronic device, including an aluminum layer enclosing a volume that includes a radio-frequency (rf) antenna is provided. The housing includes a window aligned with the rf antenna; the window including a non-conductive material filling a cavity in the aluminum layer; and a thin aluminum oxide layer adjacent to the aluminum layer and to the non-conductive material; wherein the non-conductive material and the thin aluminum oxide layer form an rf-transparent path through the window.