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9041603 Method and apparatus for doubling the capacity of a lens-based switched beam antenna system  
A lens-based switched beam antenna system including a beam-forming lens, and a beam port router coupled to the beam-forming lens, including a plurality of beam ports, and configured to transmit...
9014619 Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers  
A satellite communications system includes a satellite configured to communicate with terminals, a station configured to communicate signals intended for the terminals to the satellite via a...
9007263 Phase rotation techniques in a multi-user wireless communication environment  
A mechanism for mitigating inter-user interference in a multi-user wireless communication environment is disclosed. A first network device determines a plurality of steering matrices, associated...
9002279 System and method for aligning interference in uplink  
Provided is a method of generating a transmit beamforming vector and a receive beamforming vector to substantially eliminate the effect of interference transmitted from macro terminals to a pico...
9000981 Beamforming array antenna control system and method for beamforming using the same  
A control system connected to a plurality of array antenna performs beamforming. In order to perform the beamforming, the control system receives response beams inputting to a first antenna group...
8994588 Method of designing weight vectors for a dual beam antenna with orthogonal polarizations  
The present invention relates to a method of generating two beams, having orthogonal polarizations, covering a selected area using an antenna (20) comprising multiple dual-polarized array elements...
8988308 Wireless communication node with antenna arrangement for dual band reception and transmission  
This disclosure relates to a network node comprising an antenna arrangement with an antenna column. The antenna column comprises a first and second set of subarrays with at least two subarrays...
8981994 Processing signals  
Mobile device, method and computer program product for processing signals at the mobile device. The signals are received at a plurality of signal sensors of the mobile device. Motion of the mobile...
8933840 Control method of wireless communication system, wireless communication system, wireless communication apparatus, and adjustment method of array weight vector  
To suppress adverse effects caused by side lobes of an antenna array when an AWV to be used for communication is determined based on a transmission/reception result of a training signal. A first...
8928528 Multi-beam MIMO time division duplex base station using subset of radios  
A system and method may include a plurality of transmit and receive antennas covering one sector of a cellular communication base station; a multi-beam RF beamforming matrix connected to the...
8890764 Array antenna apparatus having shortest wiring distance to antenna elements  
An array antenna apparatus includes a radio circuit; an array antenna that includes a plurality of antenna elements; feeder lines that connect the radio circuit to the respective antenna elements;...
8878724 Steering matrix feedback for beamforming  
A first network device including a calibration module, a steering module, and a control module. The calibration module is configured to determine whether a second network device is capable of...
8797122 Butler matrix  
A butler matrix includes at least one input coupler that is positioned at an input end of the butler matrix, receives an input signal, and divides and outputs it to a plurality of paths, and at...
8786493 Antenna system with a beam with an adjustable tilt  
An antenna system with a beam with an adjustable tilt, including: a transceiver (TRX) array module, an antenna element array module, a feeding network module and a Butler matrix module, is...
8779978 Beamforming with partial channel knowledge  
An apparatus for use in transmit beamforming to a beamformee having NR receive antennas. The apparatus includes a controller configured to i) construct a partial channel matrix that describes a...
8779979 Multi-antenna signal receiving device processing multi-path interference  
Described herein is a multi-antenna signal receiving device that includes a plurality of reception antennas that is capable of maximizing a diversity gain while eliminating a multi-path...
8773307 Wide null Forming system with beamforming  
A novel wide null forming system achieves both wide bandwidth and beam width null through employing an antenna array to receive and transmit signals to which a complex null weight vector,...
8766851 Butler matrix and multi-port amplifier having the same  
A butler matrix and a multi-port amplifier having the same, capable of splitting a single input signal into N-signals or combining N-signals into a single output are provided. The hybrids are...
8754810 Hybrid adaptive antenna array  
Disclosed is a hybrid antenna array (100) comprising a plurality of digital branches (145), each digital branch including an analogue beamforming sub-array (e.g. 110-1), each sub-array having a...
8736493 Antenna and base station  
The present invention provides an antenna and a base station. The antenna includes an antenna array and a first BUTLER network. The antenna array includes multiple radiating elements arranged...
8731616 Active antenna array and method for relaying first and second protocol radio signals in a mobile communications network  
The present disclosure teaches an active antenna array for a mobile communications network. The active antenna array comprises a plurality of antenna elements, at least one first splitter, at...
8654027 Antenna arrangement  
An antenna arrangement (200, 300, 400) with antenna units (220, 230) comprising an input port (201, 202), a power divider (202, 204) for dividing an input signal into a major and a minor part with...
8638260 Transmitter beamforming steering matrix processing and storage  
A mechanism for processing beamforming steering matrices in a transceiver system. A plurality of beamforming steering matrices associated with a plurality of subcarriers of an RF signal received...
8634499 Method and apparatus for performing blind signal separation in an OFDM MIMO system  
A method and apparatus for performing blind signal separation in an orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) system are disclosed. A transmitter...
8610625 Method and apparatus for transmitting and receiving phase-controlled radiofrequency signals  
A method of beamforming a radiofrequency array having multiple antenna elements is provided. The method includes transmitting two or more sub-beams of a modulated light beam through a switched...
8604976 Broad beam antenna design for a tilted phased array with platform motion  
Embodiments of the present invention are directed to techniques and systems for modifying the transmit beam of a phased array antenna in order to effect a shape change in the beam that...
8583055 Beam forming method and multiple antenna system using the same  
Disclosed are a beam forming method and a multiple antenna system using the same. There is provided a multiple antenna system which forms optimal beam patterns through a transmission of a training...
8571127 MIMO transmission with rank adaptation for multi-gigabit 60 GHz wireless  
A wireless system includes a transmitter with a baseband processor responsive to groups of transmitter antenna arrays for communicating over directional beams; and a receiver with a baseband...
8519888 Wireless multicasting with beamforming antennas  
A method for wireless multicasting with beamforming includes dividing single lobe beam patterns into groups, each group being a composite beam pattern, the dividing being according to one of an...
8515493 Antenna array formed by a network of transceivers  
An antenna array is formed by a network of transceivers that includes unit radios and a command radio. The command radio configures the antenna array and communicates with the unit radios to send...
8508409 Control method of wireless communication system, wireless communication system, adjustment method of array weight vector, and wireless communication device  
To suppress an adverse effect caused by side lobes of an antenna array when determining an AWV to be used in communication. A first communication device transmits/receives a training signal while...
8494445 Flexible coverage areas for forward link signals in a spot beam satellite communication system  
Conventional spot beam satellites transmit downlink beams that each correspond to a separate and unique uplink signal. Power available for each downlink beam is typically set by an associated...
8463203 Base station apparatus, user apparatus and communication control method  
A base station apparatus in a radio communication system where transmit diversity is applied in uplinks includes a reference signal measurement unit configured to measure a receive level of the...
8462047 Antenna, base station, and beam processing method  
The present disclosure provides an antenna, a base station, and a beam processing method. The method includes: performing, by a hybrid network, phase adjustment for signals received from a base...
8456361 Beamforming with partial channel knowledge  
An apparatus for use in transmit beamforming to a beamformee having NR receive antennas. The apparatus includes a controller configured to i) construct a partial channel matrix that describes a...
8451172 Reconfigurable beam-forming-network architecture  
A beam-forming network having: a plurality (NI) of input signal ports (IP); a plurality (NO) of output signal ports (OP); a weighting and interconnecting network (WIN) comprising a plurality of...
8427370 Methods and apparatus for multiple beam aperture  
Methods and apparatus for an electrically steered array including a phased array aperture having a plurality of elements at a selected spacing, the aperture to provide up to four simultaneous,...
8427371 RF feed network for modular active aperture electronically steered arrays  
A feed network for an antenna subarray includes a first feed arrangement having an sum output, a second feed arrangement having an delta output, a fixed attenuator having a first port and a second...
8427372 Array antenna  
Disclosed is an electronic scanning array antenna which can be used as a UWB radar having an occupied band of not less than 500 MHz. An impulse generator is connected to each of a plurality of...
8395546 Receive only smart ground-terminal antenna for geostationary satellites in slightly inclined orbits  
A receive only smart antenna with a command pointing option for communicating with geostationary satellites that autonomously detects the directions from which desired signal are received, and...
8384594 Closed shape beam forming network  
A network distributes input microwave signals into a output signals having a Gaussian amplitude and in-phase distribution per the input signal. The network includes N input ports providing N...
8362954 Array antenna, tag communication device, tag communication system, and beam control method for array antenna  
Provided are an array antenna capable of miniaturizing an array antenna while reducing side lobes, a tag communication device and tag communication system provided with the array antenna, and a...
8362955 Antenna system  
A beamformer is arranged to receive an input from a first antenna element and from at least one other antenna element and to generate at least a first and second output beam. The first and second...
8355255 Cooling of coplanar active circuits  
In one aspect, a system includes a first circuit board that includes integrated circuits, a first thermal spreader coupled to the integrated circuits of the first circuit board, a first compliant...
8354956 Space segment payload architecture for mobile satellite services (MSS) systems  
A antenna system for generating and distributing power among a plurality of non-focused beams is provided The system comprises a reflector having a focal plane and a non-parabolic curvature...
8344945 System for simplification of reconfigurable beam-forming network processing within a phased array antenna for a telecommunications satellite  
A telecommunications satellite having a phased array antenna, wherein the beam-forming function within the phased array is simplified by partitioning it into two stages, in which the sub-array...
8311582 Asymmetrical beams for spectrum efficiency  
A method and apparatus for increasing capacity and performance of a base station for a sectorized cellular wireless network is disclosed in which one of the sector antennas is replaced or...
8289209 Active butler and blass matrices  
In an exemplary embodiment, a monolithic active solution is configured to generate the fixed spatial beams of a Butler matrix operation or a Blass matrix operation. The exemplary Butler matrix...
8284102 Displaced feed parallel plate antenna  
A displaced feed antenna which has a spaced conducting plate construction that incorporates electronically selectable feed points with associated antenna beam positions, and which comprises (i) a...
8279118 Aperiodic antenna array  
An exemplary aperiodic antenna array comprises a plurality of first elements radiating electromagnetic energy over a first bandwidth including a first frequency. Each of the first elements is...