|| List of recent F Antenna-related patents
|Transmitter diversity technique for wireless communications|
A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only simple arithmetic operations, such as negation and conjugation. The diversity created by the transmitter utilizes space diversity and either time or frequency diversity.
|Method of transmitting frames, and corresponding stations and computer program|
A frame transmission method is provided for use in a multiuser mimo system having a transmitter with a plurality of antennas and receivers that are respectively associated with users. The method includes: constructing a sounding frame in which a first portion has at least one symbol for synchronizing destination receivers and a second portion has at least as many pre-coded pilot symbols as there are destination receivers; transmitting the sounding frame in a broadcast mode for its first portion and in a directional mode for its second portion to each of the destination receivers; and constructing a respective data frame for sending to each of the destination receivers by taking account of feedback information coming from the destination receivers and, for each destination receiver, coding interference between destination receivers..
|Display apparatus and channel searching method thereof|
A display apparatus and a method of searching for a channel in the display apparatus includes a plurality of tuners and a plurality of antenna ports respectively connected to the plurality of tuners. The method includes receiving a channel search command; if the channel search command is input, searching for one of the plurality of antenna ports that is connected to a satellite antenna to receive a broadcasting signal, if one of the plurality of antenna ports is connected to the satellite antenna to receive the broadcasting signal, setting one of the plurality of tuners connected to the one antenna port, to a main tuner, and performing a channel search through the tuner set to the main tuner.
|Method of antenna impedance mismatch compensation based on time-to-digital converter phase estimation|
A method for an antenna mismatch compensation may include determining an amplitude ratio by measuring a ratio of amplitudes of a reflected signal and an incident signal of an antenna tuning circuit coupled to an antenna. A time difference between the reflected signal and the incident signal may be measured.
|Multiple beam formation for rf chip-based antenna array|
A method for selectively performing beam formation using a rf chip-based antenna array is described. The method includes determining whether to use a plurality of antenna arrays in one or more common carrier substrates in either a single group or a plurality of groups.
|Gps antenna diversity and noise mitigation|
A system and method for improving acquisition sensitivity and tracking performance of a gps receiver using multiple antennas is provided. In an embodiment, the acquisition sensitivity can be improved by determining the correlation weight of each received path signal path associated with one antenna form a plurality of antennas and then combining the path signals based on their respective correlation weight.
|Method of selecting receive antennas for mimo systems|
A method of performing receive antenna selection is presented. The method executes a determination operation for a set of receive antennas, determines a maximum result of the determination operation for two of the antennas, eliminates one of the two antennas from the set of antennas, and repeats the determination and elimination process until only a predetermined number of antennas remain in the set.
|Transmission signal generation method, transmission signal generation apparatus, reception signal generation method, and reception signal generation apparatus|
Of any one of a transmission method x of transmitting modulated signal a and modulated signal b including the same data from a plurality of antennas and a transmission method y of transmitting modulated signal a and modulated signal b having different data from the plurality of antennas, a base station apparatus does not change the transmission method during data transmission and changes only the modulation scheme. The base station apparatus transmits modulated signal a and modulated signal b to a communication terminal apparatus using the determined transmission method and modulation scheme.
|Enhanced antenna management by a base station|
Enhanced antenna management for nodes is described in which transmit antennas assigned to at least one first carrier are designated for usage in a second carrier. The nodes transmit various signals and reference signals using a set of antenna ports on the second carrier based on the combined physical antennas associated with the first inactive carriers and physical antennas associated with the second carrier..
|Antenna systems and methods for massive mimo communication|
Antenna systems and methods for massive multi-input-multi-output (mimo) (m-mimo) communication are provided. Antennas systems include a m-mimo transmitter architecture with a hybrid matrix structure.
|Dynamic eirp constraint for a cellular communication system using a large number of base station antennas|
The present disclosure is directed to a system and method for determining an eirp constraint for a data stream based on the direction that a beam carrying the data stream is to be radiated by an array of antennas rather than using a fixed eirp constraint for all such beams. The system and method can use the direction the beam is to be radiated to determine a distance between the array of antennas and the closest point (or location) in which a human being can potentially be impacted by the radiated beam.
|Antenna system with return path tuning and loop element|
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include a dual arm inverted-f antenna resonating element and an antenna ground.
|Method and apparatus for adaptive antenna sharing|
A method and apparatus are disclosed for sharing antennas between modems for two or more different radio access technologies when two or more antennas may be present in a system. A method for coordination between the modem and the corresponding network element as well as the coordination between the two or more radio access technologies is provided.
|Calibration and testing device for an active antenna, particularly a nose-cone antenna of an airborne radar|
A device includes a test enclosure defining a cavity forming an anechoic chamber, having a test probe placed inside the cavity. The cavity comprises an aperture against which the radiating surface of antenna is positioned.
Measures for fading-based control of an antenna radiation pattern. Such measures may comprise reception of at least one radio wave signal via an antenna unit, detection of fading conditions in relation to the received at least one radio wave signal, and control of an antenna radiation pattern of the antenna unit, at least in terms of antenna lobe width, on the basis of the detected fading conditions..
|Channel sounding and estimation strategies in mimo systems|
In a system having a first communication device with a first plurality of radio-frequency (rf) chains coupled to a first plurality of antennas and a second communication device with a second plurality of rf chains coupled to a second plurality of antennas, the second communication device receives consecutive training packets that were transmitted by the first communication device, the consecutive training packets having been produced at the first communication device by a power level rule to the first plurality of rf chains. The second communication device determines respective channel measurements corresponding to the consecutive training packets based on the power level rule, and selects a transmit parameter based on the respective channel measurements, the transmit parameter to be used by the first communication device when transmitting to the second communication device.
|Implementing mimo in mmwave wireless communication systems|
A system and method are provided to increase data rates available in mmwave wireless communication systems by adapting a multiple-input multiple-output (mimo) in a next generation mmwave wireless communication system. The system and method advantageously employ the characteristics of mmwave antenna arrays, including multiple antenna elements in each antenna array, to implement the mimo scheme by establishing multiple beamformed communication links between a mmwave transmitter and receiver.
|Antenna device and radar device|
An antenna device according to an embodiment includes a dielectric substrate, a housing, and an interference prevention unit. On the top surface side of the dielectric substrate, a plurality of antennas is formed, and on the bottom surface side, a ground is formed, each as a conductive thin film pattern, respectively.
|Multiband antenna and mobile terminal|
The antenna has a configuration in which three inductors, i.e., first to third inductors 5 to 7 having values of inductances l1 to l3, respectively, are arranged in an inverted f-shaped antenna formed of miniaturized four antenna elements, i.e., first to fourth antenna elements 1 to 4 with an element length shorter than that of each wavelength of desired resonance frequencies are grounded at a gnd ground point 11. A power feeding unit 10 feeds electric power to the inverted f-shaped antenna through a matching circuit 9, thereby enabling a plurality of antenna operations of a two-resonance loop antenna that resonates at two resonance frequencies on a high-frequency side, an inverted f-shaped antenna that resonates at two resonance frequencies on a low-frequency side, and an inverted l-shaped antenna..
|Planar antenna apparatus and method|
A planar antenna apparatus is provided. The apparatus includes a first radiation unit configured to transmit a signal, a first feed unit configured to feed a current to the first radiation unit and apply the signal to be transmitted to the first radiation unit, a first radio frequency (rf) ground to which a plurality of antenna elements are grounded; and a via that connects the first radiation unit to the first rf ground, wherein all of the first radiation unit, the first feed unit, the first rf ground, and the via are disposed on a first plane, and wherein a capacitance value between the first radiation unit and the first feed unit and an inductance value determined by a length and a width of the radiation unit are set as values that cause a resonant frequency in a specific frequency band to be a preset value..
|Antenna system with tuning from coupled antenna|
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-f antenna and an additional antenna such as a monopole antenna sharing a common antenna ground.
|Antenna assemblies with tapered loop antenna elements|
According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes one or more tapered loop antenna elements..
|Antennas mounted under dielectric plates|
Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures.
|Control method of radio communication system, radio communication system, and radio communication apparatus|
A communication device 1 (transceivers 400) transmits a training signal from its own transmitting antenna while performing beam scanning, and a communication device 2 (transceivers 500) receives this training signal in a state where a quasi-omni pattern is generated in its own receiving antenna. Further, the device 1 transmits a training signal in a state where a quasi-omni pattern is generated in the transmitting antenna, and the device 2 receives this training signal by the receiving antenna while performing beam scanning.
|Low power, space combined, phased array radar|
A radar system including a plurality of mini radars may be conformable to a structure that it is attached or built into. A radar system includes a clock, a plurality of frequency modulated/continuous wave (fm/cw) radar units in signal communication with the clock and a processor in signal communication with the plurality of fm/cw radar units.
|Plasma apparatus and substrate-processing apparatus|
Provided are a plasma generating apparatus and a substrate processing apparatus. The plasma generating apparatus includes a plurality of dielectric tubes mounted in a plurality of through-holes formed in a vacuum container, respectively; antennas comprising or divided into a first group of antennas and a second group of antennas based on their disposition symmetry in the vacuum container and mounted outside the dielectric tubes, respectively; a first rf power source to supply power to the first group of antennas; a second rf power source to supply power to the second group of antennas; and a first power distribution unit disposed between the first group of antennas and the first rf power source to distribute the power from the first rf power source to the first group of antennas..
|Perturbation-based dynamic measurement of antenna impedance in real-time|
Devices and methods are disclosed for real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a receiver. Processing logic is operable to solve multiple non-linear equations to determine the reflection coefficient of the antenna.
|Radiation redirecting elements for portable communication device|
An antenna or set of antennae for a wireless device is provided by embedding the antennae into the battery case or generally the surface area of a wireless phone. The antenna connections are through the battery's connections to the wireless device.
|Satellite communication having distinct low priority information broadcast into adjacent sub-regions|
A satellite communication system using hierarchical modulation to transmit a plurality of modulated signals to sub-regions within a region. Each modulated signal includes high priority content and low priority content.
|Wireless link apparatus|
A wireless link apparatus includes a plurality of antennas; a signal detector configured to calculate snr based on a signal received from at least one of the plurality of antennas; and a mode selector configured to determine the number of an antenna to be used in modulation method and signal transmission by comparing the calculated snr with a preset critical value. Further, the wireless link apparatus includes a transmitter configured to modulate a signal in the modulation method determined by the mode selector and transmit the modulated signal using an antenna corresponding to the determined number of the antennas..
|Efficient uplink transmission of channel state information|
A user equipment in a wireless communication network includes a multiplicity of antennas, from which a subset of antennas is selected using a selection scheme synchronized to the network. A set of sub-carriers is selected from a plurality of sub-carriers using a selection scheme synchronized to the network.
|On-board radar apparatus|
An on-board radar apparatus includes an antenna unit configured by combining one of a lens and a reflector, and a plurality of antenna elements, a transmission and reception unit configured to emit a radio wave using, for at least one of transmission or reception, a partial antenna of a plurality of patterns configured by the antenna elements that are part of the plurality of antenna elements, and to receive a reflection wave obtained by reflection of the radio wave from an object, and a detection unit configured to detect the object based on the reflection wave received by the transmission and reception unit.. .
|System and method for wireless spectrum allocation|
The invention generally relates to systems and methods for increasing effective spectrum. The invention provides wireless antennas that transmit or receive within a narrow spectrum at distances that overlap the reach of neighboring antennas and that also transmit or receive within a broader spectrum at restricted distances that do not interfere with the operation of neighboring antennas.
|Method and apparatus for controlling operation of a user equipment based on physical layer parameters|
Techniques for controlling internal operation of a user equipment (ue) based on physical layer (phy) parameters of a wireless network are disclosed. The phy parameters may include a system bandwidth, an uplink-downlink configuration, a number of antennas, a number of carriers, etc.
|Implicit switch for switching between receive and transmit modes of antennas|
A millimeter-wave radio frequency front-end circuit is provided. The front-end circuit comprises a millimeter-wave antenna configured to receive and transmit millimeter-wave signals; a matching network including at least a first inductor and a second inductor connected in parallel, wherein the matching network ensures impedance matching with the antenna when transmitting and receiving the millimeter wave signals; a power amplifier coupled to the antenna through the matching network; a low noise amplifier coupled to the antenna through the matching network, wherein the power amplifier is on and the low noise amplifier is off when transmitting the millimeter-wave signals, and the power amplifier is off and the low noise amplifier is on when receiving the millimeter-wave signals..
|Wlan diversity/mimo using shared antenna|
A ue with a limited number of antennas may support multiple radio access technologies (rats). In some instances, the ue may configure a shared antenna for use by a wireless local area network (wlan) radio access technology (rat) or a cellular rat.
|Communications terminal, a network component, a method for transmitting a signal, and a method for providing feedback information to a communications terminal|
A communications terminal may include: a plurality of antennas; and a transmitter configured to transmit a signal on an antenna of the plurality of antennas, wherein the transmitter further may be configured to transmit a delayed signal on another antenna of the plurality of antennas, and wherein the delayed signal may be generated by delaying the signal by a time delay.. .
|Distributed antenna system for mimo communications|
A method and apparatus for determining placement of a plurality of antennas of a distributed antenna system for handling mimo signals includes, at a first location, simulating the communication of a first mimo signal by a first remote unit over an air interface in an environment and, at a second location, simulating the communication of a second mimo signal by a second remote unit over an air interface in the environment. The first and second locations are arranged within the environment to provide overlapping signal coverage of both the first mimo signal and the second mimo signal at a third location in the environment.
|Smart antenna array configuration for multiple-input multiple-output communications|
An access point can include an array of antennas and a smart antenna selector. The smart antenna selector is configured to select a subset of antennas from the antenna array for use in multi-user multiple-input multiple-output (mu mimo) data transmissions.
|Methods and apparatus for increasing diversity in downlink transmissions|
Certain aspects of the present disclosure provide methods and apparatus for obtaining second-order downlink spatial diversity within a wireless communication system in accordance with ieee 802.11ah, for example. One example method generally includes generating a frame comprising a preamble having at least one field, replicating at least one bit of the at least one field to form a replica of the at least one bit, transmitting the at least one bit via a first antenna, and transmitting the replica of the at least one bit via a second antenna.
|Base station having a plurality of antennas for the adaptive offloading of an overloaded area|
Telecommunication stations having a wide coverage area are described. Some embodiments relate to a station for transmitting and/or receiving electromagnetic waves, including at least two antenna ports, each antenna port being capable of being connected to a respective group of antennas comprising one or more antennas, the respective signals being fed to the respective antenna ports being identical to one another, except for, if need be, the respective powers thereof, the station further including adjustment components capable of separately adjusting the respective power of at least one of the respective signals, and a control component capable of controlling the adjustment components according to a control signal received by the station.
|Antenna fabrication with three-dimensional contoured substrates|
An antenna includes a dielectric substrate having a three-dimensional contour, and a set of antenna traces on the dielectric substrate. Each antenna trace spirals around the three-dimensional contour in a helical pattern.
|Mimo antenna assembly having reduced packaging size|
A multiple input, multiple output (mimo) antenna system includes an electrically conductive, substantially planar, ground reference and a plurality of antenna assemblies electrically connected to respective antenna feeds at respective connection points. The antenna assemblies extend on a first side of the ground reference and are formed from a conductive material.
|Systems and methods for reconfigurable faceted reflector antennas|
Systems and methods are disclosed herein for a reconfigurable faceted reflector for producing a plurality of antenna patterns. The reconfigurable reflector includes a backing structure, a plurality of adjusting mechanisms mounted to the backing structure, and a plurality of reflector facets.
|Electronic device with hybrid inverted-f slot antenna|
An electronic device may be provided with a housing. The housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member.
|Hybrid radio frequency / inductive loop antenna|
Biometric monitoring devices, including various technologies that may be implemented in such devices, are discussed herein. Additionally, techniques, systems, and apparatuses are discussed herein for providing a hybrid antenna including an rf radiator and an electrically coupled inductive loop.
|Electronic device having multiport antenna structures with resonating slot|
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include an inverted-f antenna resonating element and an antenna ground that form an inverted-f antenna having first and second antenna ports.
|Mobile wireless communications device with selective load switching for antennas and related methods|
A mobile wireless communications device may include a plurality of antennas, a plurality of wireless transceivers, and signal processing circuitry. The device may further include a controller for selectively switching the signal processing circuitry to a desired one of the wireless transceivers, and for selectively switching a desired one of the antennas to the desired one of the wireless transceivers.
|Antenna alignment device and clamp|
An antenna alignment device includes an enclosure. The enclosure has a top portion having a single radome and a bottom portion.
|Antenna system having two antennas and three ports|
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-f antenna and a monopole antenna sharing a common antenna ground.
|Tunable antenna with slot-based parasitic element|
Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures.
|Single-package phased array module with interleaved sub-arrays|
Embodiments of the present disclosure are directed to a single-package communications device that includes an antenna module with a plurality of independently selectable arrays of antenna elements. The antenna elements of the different arrays may send and/or receive data signals over different ranges of signal angles.
|Simple 2d phase-mode enabled beam-steering means|
System and apparatus embodiments are provided for beam-steering. In an embodiment, an apparatus includes a first hybrid splitter/combiner connected to a 0-th phase-mode feed of an array of antenna elements, a second hybrid splitter/combiner, a first pair of variable phase shifters connecting the first hybrid splitter/combiner to the second hybrid splitter/combiner, wherein the first pair of variable phase shifters control a steering direction of a main output beam radial with respect to an array axis by adjustments of respective phases of the variable phase shifters, and wherein the array axis is perpendicular to a plane of the array, and a third variable phase shifter connecting a 1-st phase-mode feed of an array of elements to an input of the first hybrid splitter/combiner, wherein the third variable phase shifter is configured to independently control a direction of the main output beam in a direction circumferential with respect to the array axis..
|Adaptive transmit array for beam-steering|
A method includes receiving a remote transmitter signal at an antenna array including a number of antenna elements, mixing the received signal with in-phase and quadrature-phase local oscillator (lo) signals from voltage controlled oscillators (vcos) of a coupled vco array, and configuring each phase locked loop (pll) of a number of plls to receive an in-phase output of the mixing corresponding to a vco and a quadrature-phase output of the mixing corresponding to another vco adjacent to the vco as inputs thereto. The method also includes feeding back an output of the each pll to the vco, driving the in-phase and the quadrature-phase outputs of the mixing from a transmit modulator, and transmitting, in a direction of the remote transmitter, an antenna array signal based on the driving.
|Method and system for random steerable sar using compressive sensing|
A synthetic aperture radar image is generated by directing randomly a beam of transmitted pulses at an area using a steerable array of antennas, wherein the area is uniformly by the transmitted pulses while the array of antennas moves along a path. A sparse reconstruction procedure is applied to received signals from the area due to reflecting the transmitted pulses to generate the image corresponding to the area.
|Omni-inducer transmitting devices and methods|
Omnidirectional electromagnetic signal inducer (omni-inducer) devices are disclosed. The omni-inducer device may include a housing, which may include a conductive base for coupling signals to ground, and an omnidirectional antenna node including a plurality of antenna coil assemblies, where the node may be disposed on or within the housing.
|Ion source having negatively biased extractor|
An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a rf antenna external to the sealed envelope, the rf antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas.
|Rfid tag with reinforced structure|
A rfid tag with reinforced structure is capable of reducing the chance of electrical disconnection between the silicon chip and the antenna, extending the life of the rfid tag, and improving the accuracy of reading the rfid tag. The rfid tag is provided with a base, a silicon chip, an antenna and at least one reinforced portion.
|Method and apparatus for generating highly repetitive pulsed plasmas|
A pulsed radio frequency inductive plasma source and method are provided. The source may generate plasma at gas pressures from 1 torr to 2000 torr.
|Rf antenna assembly with feed structure having dielectric tube and related methods|
An rf antenna assembly may be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors and a feed structure therebetween defining a dipole antenna to be positioned within the wellbore, and an rf transmission line extending within one of the tubular conductors.
|Rf antenna assembly with dielectric isolator 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 and a dielectric isolator therebetween.
|Rf antenna assembly with series dipole antennas and coupling structure and related methods|
An rf antenna assembly is to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes a series of tubular dipole antennas to be positioned within the wellbore, each tubular dipole antenna having a pair of dipole elements, and an rf transmission line extending within the series of tubular dipole antennas.