| Entries |
| Document | Title | Date |
|---|
| 20080303717 | Oblique EM wave navigation coordinate plotter and cooperative transponder - A high speed obliquely disposed EM “Electromagnetic Wave” based image plotter consisting of one or more narrow beam EM radiators conveying trigonometrically derived location coordinates to one or more cooperative EM pixel decoding tags, transponders or like circuitry. The cooperative transponder detects and decodes the EM pixels and reconciles its own location from resident memory stored navigation map that is changeable by the EM plotter. The EM plotter is obliquely oriented in relation to the operative navigation space it covers as to establish a three point trigonometric relationship between the plotter's fixed elevation to its cooperative transponder's X axis distance from the plotter as determined by the elevation angle of the plotter's beacon at the time of measurement. | 12-11-2008 |
| 20090009390 | DUAL BAND QUADPACK TRANSMIT/RECEIVE MODULE - A multi-channel, dual-band, radio frequency (RF) transmit/receive (T/R) module, for an active electronically scanned array, is provided. The module includes a compact, RF manifold connector and at least four T/R channels. Each of the T/R channels includes a notch radiator, a diplexer coupled to the notch radiator, a power amplifier, including at least one dual-band gain stage, coupled to the notch radiator, a low noise amplifier, including at least one lower-band gain stage and at least one upper-band gain stage, coupled to the diplexer, and a T/R cell, including a phase shifter, a signal attenuator and at least one dual-band gain stage, coupled to the power amplifier, the low noise amplifier and the manifold connector. | 01-08-2009 |
| 20100026574 | 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, independent beam sets, wherein the elements are controlled by a single complex weight. | 02-04-2010 |
| 20110102261 | SYSTEM AND METHOD TO FORM COHERENT WAVEFRONTS FOR ARBITRARILY DISTRIBUTED PHASED ARRAYS - A system and method for providing coherent sources for phased arrays are provided. One method includes providing a plurality of transceivers configured to transmit signals and defining an array of nodes. The method also includes providing a plurality of beacons at different frequencies to one of aim or focus phase coherent energy generated by the transmitted signals from the plurality of transceivers, wherein the phase coherent energy is transmitted at a direction and a frequency determined with phase conjugation and independent of the location of the plurality of beacons. | 05-05-2011 |
| 20120313818 | ACTIVE ELECTRONICALLY SCANNED ARRAY (AESA) CARD - In one aspect, an active electronically scanned array (AESA) card includes a printed wiring board (PWB) that includes a first set of metal layers used to provide RF signal distribution, a second set of metal layers used to provide digital logical distribution, a third set of metal layers used to provide power distribution and a fourth set of metal layers used to provide RF signal distribution. The PWB comprises at least one transmit/receive (T/R) channel used in an AESA. | 12-13-2012 |
| 20130088392 | DISTRIBUTED POWER CONDITIONING WITH DC-DC CONVERTERS IMPLEMENTED IN HETEROGENEOUS INTEGRATED CIRCUIT - A flat panel active electronically scanned array (AESA) ( | 04-11-2013 |
| 20130293419 | TRANSMIT CO-CHANNEL SPECTRUM SHARING - An intelligent backhaul system is disclosed for deployment in the presence of existing radio systems. A backhaul system for co-channel deployment with existing licensed and unlicensed wireless networks, including conventional cellular backhaul radios, Common Carrier Fixed Point-to-Point Microwave Service, Private Operational Fixed Point-to-Point Microwave Service and other FCC 47 C.F.R. §101 licensed microwave networks is disclosed. Processing and network elements to manage and control the deployment and management of backhaul of radios that connect remote edge access networks to core networks in a geographic zone which co-exist with such existing systems or other sources of interference within a radio environment are also disclosed. | 11-07-2013 |
| 20130328722 | NODE AND METHOD FOR ESTABLISHING BEAMFORMING FOR DOWNLINK COMMUNICATIONS - Example embodiments presented herein are directed towards an eNodeB ( | 12-12-2013 |
| 20130335269 | ACTIVE ELECTRONICALLY SCANNED ARRAY ANTENNA FOR HEMISPHERICAL SCAN COVERAGE - An antenna architecture for hemispherically-scanning active electronically scanned arrays (AESA). The antenna architecture utilizes variable diameter disks of antenna elements configured in a conical implementation. The antenna elements are oriented such that the element boresight is normal to the surface of the conical structure. Beamforming takes place on each disk first, and them separately in combining the signals from each disk, thereby reducing complexity. The antenna optionally utilizes disks of antenna elements of the same diameter to form a cylindrical antenna, which when combined with a conical configuration create enhanced sectors while maintaining a hemispherical coverage capability. Further, use of two conical configurations can produce a fully spherical coverage capability. | 12-19-2013 |
| 20140077996 | PHASED ARRAY ANTENNA AND A METHOD OF OPERATING A PHASED ARRAY ANTENNA - An element of a phased array antenna is provided. The element comprises a phase tracking circuit configured to multiply the in-phase component (In) of a local output signal by the quadrature phase component (Qout) of an external output signal to generate a phase control signal ( | 03-20-2014 |
| 20140085143 | METHODS AND APPARATUS FOR FRAGMENTED PHASED ARRAY RADAR - Methods and apparatus for a phase array radar system having a fragmented array. In one embodiment, subarrays forming a generally rectangular shape are disposed on the surface of a truncated cone or a dome so that gaps are formed between adjacent segments of subarrays or between every adjacent subarrays. | 03-27-2014 |
| 20140104107 | Array Antenna Having A Radiation Pattern With A Controlled Envelope, And Method Of Manufacturing It - A method for manufacturing an array antenna having a design phase, including synthesizing an array layout of the array antenna and choosing or designing radiating elements to be arranged according to the array layout; and a phase of physically making the array antenna, including arranging the radiating elements according to the array layout; the design phase having the steps of: a) synthesizing an array layout complying with a required minimum beamwidth, a required field of view, a required side lobe level and a target angular dependence of the maximum directivity of the array antenna over the required field of view; b) determining shaped radiation patterns of the radiating elements in order to approximate said target angular dependence of the maximum directivity of the array antenna over the required field of view; and c) choosing or designing radiating elements having the shaped radiation patterns determined at step b). | 04-17-2014 |
| 20140132451 | MAXIMUM LIKELIHOOD ANGLE ESTIMATION OF WIDEBAND SIGNALS USING PHASED ARRAY ANTENNAS - A method for estimating a target direction of a wideband signal received on an electronically steered array includes: applying convolutional or stretch processing to spatial frequency data of the wideband signal; initializing a stabilization direction to a beam pointing direction; stabilizing the spatial frequency data to the stabilization direction; compressing the spatial frequency data to a plurality of frequency range or time bins; selecting range or time bins and forming a covariance matrix; calculating an estimated target direction using the covariance matrix; determining if a stabilization direction accuracy condition is met; recalculating the stabilization direction based on the estimated target direction if the stabilization direction accuracy condition is not met; and iteratively repeating until the stabilization direction accuracy condition is met. | 05-15-2014 |
| 20140145879 | MM-WAVE PHASED ARRAY ANTENNA WITH BEAM TILTING RADIATION PATTERN - A system according to one embodiment includes a phased array antenna comprising a plurality of antenna elements, the plurality of antenna elements configured in a planar array, wherein each of the plurality of antenna elements generates a beam pattern directed at an angle out of the plane of the planar array; and driver circuitry coupled to each of the plurality of antenna elements, wherein the driver circuitry comprises a plurality of transceivers, the plurality of transceivers configured to provide independently adjustable phase delay to each of the plurality of antenna elements. | 05-29-2014 |
| 20140266898 | ACTIVE, ELECTRONICALLY SCANNED ARRAY ANTENNA - An improved active, electronically scanned array antenna that employs programmable time delays in the transmission feed lines to form timed arrays is provided. A timed array can be implemented as a nested set of transmission lines, and the programmable time delay can be realized as or in each of the transmission lines such that each transmission line can have a fixed physical length and a programmable electrical length. | 09-18-2014 |
| 20140266899 | Real Aperture Radar System For Use On Board A Satellite And For Maritime Surveillance Applications - The present invention regards a method of operation of a real aperture radar system for surveillance of the Earth's surface, said real aperture radar system being installed on a space vehicle/platform that moves in a direction of flight and comprising a transceiving antenna, or a transmitting antenna and a receiving antenna, which is/are electronically steerable. The method comprises: a) transmitting, via the transceiving/transmitting antenna, a series of M radar pulses towards a swath of the Earth's surface parallel to the direction of flight using an antenna beam pointed at said swath, wherein M is an integer greater than two; b) for each of the M radar pulses transmitted, receiving, via the transceiving/receiving antenna, a corresponding echo signal during the time interval that elapses between transmission of said radar pulse and transmission of the following radar pulse using the same antenna beam as the one used for transmitting the M radar pulses; c) carrying out elevation scanning cycles, wherein each elevation scanning cycle is carried out by repeating N times the operations a) and b) and by electronically changing, each time, the direction of pointing in elevation of the antenna beam so that, at each elevation scanning cycle, the radar pulses are transmitted towards, and the echo signals are received from, N swaths of the Earth's surface that are parallel to the direction of flight and are adjoining or partially overlapping, wherein N is an integer greater than one. All the radar pulses are transmitted: with a predefined pulse repetition frequency and a predefined timing of the scanning cycle such that to guarantee a complete coverage of each of the N swaths parallelly to the direction of flight; and by using a frequency agility technique. | 09-18-2014 |
| 20140375502 | Mixed Structure Dual-Band Dual-Beam Three-Column Phased Array Antenna - Dual-band antenna elements can be used to construct a dual-beam three-column antenna array. The dual-band antenna elements include both a high-band and a low-band radiating element, which allows the dual-band antenna elements to radiate signals in two frequency bands. The dual-band antenna elements also include a resonating box to isolate the co-located radiating elements from one another, as well as to mitigate inter-band distortion. The dual-band antenna elements may be interleaved with single-band elements to achieve a dual-beam three-column antenna array. Individual elements in the dual-beam three-column antenna array may be separated by non-uniform offsets/spacings to achieve improved performance. | 12-25-2014 |
| 20150077290 | SYSTEMS AND METHODS FOR INTERFERENCE GEOLOCATION AND MITIGATION USING A PHASED ARRAY RECEIVING ANTENNA - A method for mitigating interference using a phased array receiving antenna is provided. The method includes perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first composite beam and a second composite beam, cross-correlating the first composite beam and the second composite beam, receiving communications data using the first composite beam and the second composite beam, and determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam. | 03-19-2015 |
| 20150116154 | LENS ANTENNA WITH ELECTRONIC BEAM STEERING CAPABILITIES - The invention discloses a lens antenna with high directivity intended for use in radio-relay communication systems, said antenna providing the capability of electronic steering of the main radiation pattern beam by switching between horn antenna elements placed on a plane focal surface of the lens. Electronic beam steering allows antenna to automatically adjust the beam direction during initial alignment of transmitting and receiving antennas and in case of small antenna orientation changes observed due to the influence of different reasons (wind, vibrations, compression and/or extension of portions of the supporting structures with the temperature changes, etc.). The technical result of the invention is the increase of the antenna directivity with simultaneously provided capability of scanning the beam in a continuous angle range and also the increase of the antenna radiation efficiency and, consequently, the increase of the lens antenna gain. This result is achieved by the implementation of horn antenna elements with optimized geometry. | 04-30-2015 |
| 20150325926 | ANTENNA ARRAY AND METHOD - An antenna array, in particular a traveling-wave antenna array, has an adjustable radiation pattern, having an antenna element that has a first feed terminal at one end of the antenna element and a second feed terminal at another end of the antenna element; a signal generation unit that is configured for generating a feed signal and for providing a feed signal at the first feed terminal of the antenna element and at the second feed terminal of the antenna elements; at least one signal conditioning unit that is electrically configured between the signal generation unit and one of the feed terminals and that is configured for matching the amplitude and/or the phase of the corresponding feed signal to a specified radiation pattern. Also described is a corresponding method. | 11-12-2015 |
| 20150349419 | PLANAR NEAR-FIELD CALIBRATION OF DIGITAL ARRAYS USING ELEMENT PLANE WAVE SPECTRA - A calibration method, applicable to element-level digital arrays operating in the receive mode, which utilizes the individual element plane wave spectra obtained from a single planar near-field scan. The method generates highly accurate near-field measurement derived amplitude and phase calibration of both large and small digital arrays as a function of array scan. The present disclosure provides digital array calibration methods and their potential uses in satellites and directional arrays. | 12-03-2015 |
| 20150349420 | PLANAR NEAR-FIELD CALIBRATION OF DIGITAL ARRAYS USING ELEMENT PLANE WAVE SPECTRA - A calibration method, applicable to element-level digital arrays operating in the receive mode, which utilizes the individual element plane wave spectra obtained from a single planar near-field scan. The method generates highly accurate near-field measurement derived amplitude and phase calibration of both large and small digital arrays as a function of array scan. The present disclosure provides digital array calibration methods and their potential uses in satellites and directional arrays. | 12-03-2015 |
| 20150357709 | CIRCULAR ARRAY ANTENNA - Disclosed is a circular array antenna. The circular array antenna includes: an input/output unit receiving electromagnetic waves from a transmitter and distributing the received electromagnetic waves to the antenna; a primary feeder connected with the input/output unit and placed at the center of the circular array antenna; a plurality of secondary feeders radially connected to the primary feeder; a plurality of patch units connected to the respective secondary feeders to generate an electric field radially; and a plurality of length controllers formed at terminals of the respective secondary feeders in a direction to extend the lengths of the respective secondary feeders, of which the lengths are controllable. | 12-10-2015 |
| 20150364818 | A METHOD FOR ANTENNA ALIGNMENT IN A NON LINE-OF-SIGHT SCENARIO - A method for alignment of a first node with a second node in a wireless communication network. The method comprises directing a first node first antenna beam at a first pointing angle, using a second node antenna beam for scanning a first volume with objects being able to generate signal reflections/diffraction, detecting a first signal property of reflected/diffracted signals; and saving scan angles resulting in said first signal property exceeding a first threshold level. The method further comprises directing the second node antenna beam at said saved angles, and, for each such angle: using a first node second antenna beam for scanning; and detecting at least a second signal property of reflected/diffracted signals; exchanging information between the nodes comprising first node second antenna beam pointing direction angles resulting in said second signal property exceeding a second threshold level and said saved angles; and selecting angles for communication. | 12-17-2015 |
| 20150380817 | 3X3 BUTLER MATRIX AND 5X6 BUTLER MATRIX - The present invention relates to a 3×3 Butler matrix, comprising a first directional coupler, a second directional coupler, a third directional coupler, a first fixed phase shifter, a second fixed phase shifter and a third fixed phase shifter; and also relates to a 5×6 Butler matrix, comprising a first 3×3 Butler matrix, a second 3×3 Butler matrix, a fourth directional coupler, a fifth directional coupler, a power divider, a fourth fixed phase shifter and a fifth fixed phase shifter. The 3×3 Butler matrix and the 5×6 Butler matrix provided in the present invention have the features of small size, wide frequency band, low loss, high isolation and stable performance, fill the blank of specific technical schemes about the 3×3 Butler matrix and the 5×6 Butler matrix in the prior art, and have broad application prospects and great value. | 12-31-2015 |
| 20160036111 | SURFACE-WAVE WAVEGUIDE WITH CONDUCTIVE SIDEWALLS AND APPLICATION IN ANTENNAS - A surface-wave waveguide may include a base conductive ground plane including opposite side edges and a pair of conductive side walls. One conductive side wall extends from each side edge of the conductive ground plane. The surface-wave waveguide may also include a substrate including a dielectric material disposed on the base conductive ground plane and between the conductive side walls. The surface-wave waveguide may also include an impedance sheet disposed on the substrate and between the conductive side walls. The impedance sheet may include a predetermined impedance characteristic for transmitting an electromagnetic wave. | 02-04-2016 |
| 20160099500 | DEVICE, SYSTEM AND METHOD TO MITIGATE SIDE LOBES WITH AN ANTENNA ARRAY - Techniques and mechanisms to transmit signals with an antenna array. In an embodiment, a first signal is received at a first input of the first antenna while a second signal is received at a second input of the second antenna. A difference in phase differentials—the phase differentials each between the first signal and the second signal—results from propagation of the first signal and the second signal in the antenna array and from a difference between respective configurations of the first antenna and the second antenna. Each of the first antenna and the second antenna has respective emitters distributed along the length thereof. In another embodiment, the first antenna and the second antenna have different respective dielectric structures or different respective distributions of emitters. | 04-07-2016 |
| 20160127919 | EFFICIENT BEAM SCANNING FOR HIGH-FREQUENCY WIRELESS NETWORKS - Systems and methods relating to non-adaptive beam scanning in a wireless network are disclosed. In some embodiments, a method of operation of a transmit node to perform non-adaptive beam scanning for transmit beam patterns of the transmit node that partition a service coverage area of the transmit node into transmit partition cells is provided. The method transmitting a known signal using each of multiple scanning beam patterns for each of multiple beam scanning stages over non-overlapping radio resource slots. The scanning beam patterns for the beam scanning stages are such that each unique combination of scanning beam patterns consisting of one scanning beam pattern from each of the beam scanning stages corresponds to a different transmit beam pattern of the transmit node. This multi-stage beam scanning approach provides an exponentially more efficient process for beam scanning than the conventional Sequential Beam Sweeping (SBS) approach. | 05-05-2016 |
| 20160134014 | ANTENNA ON A DEVICE ASSEMBLY - Aspects disclosed in the detailed description include an antenna on a device assembly. A device assembly includes a silicon device layer having at least one antenna. The device assembly also includes a polymer substrate that is formed with insulating material that does not interfere with the at least one antenna in the silicon device layer. As a result, it is unnecessary to shield the at least one antenna from the polymer substrate, thus allowing radio frequency (RF) signals radiating from the at least one antenna to pass through the polymer substrate. | 05-12-2016 |
| 20160172754 | High Coverage Antenna Array and Method Using Grating Lobe Layers | 06-16-2016 |
| 20160172755 | SWITCHABLE TRANSMIT AND RECEIVE PHASED ARRAY ANTENNA | 06-16-2016 |
