With Frequency Or Phase Steering Patents (Class 342/157)
  • Patent number: 10367380
    Abstract: An RF lens includes a multitude of radiators adapted to transmit radio frequency electromagnetic EM waves whose phases are modulated so as to concentrate the radiated power in a small volume of space in order to power an electronic device positioned in that space. Accordingly, the waves emitted by the radiators are caused to interfere constructively at that space. The multitude of radiators are optionally formed in a one-dimensional or two-dimensional array. The electromagnetic waves radiated by the radiators have the same frequency but variable amplitudes.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: July 30, 2019
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Kaushik Sengupta, Seyed Ali Hajimiri
  • Patent number: 10353059
    Abstract: A system for detecting and locating submerged underwater objects having neutral buoyancy comprising mechanically steered sonar to image the water column comprises mechanically steered sonar with a single emission channel, to perform the insonification of a first individual sector in a first pointing direction by a single first acoustic pulse, the sonar forming a single reception channel suitable for acquiring a first acoustic signal resulting from insonification, the mechanically steered sonar being mounted on a carrier to advance in a main direction, the first pointing direction substantially lateral to the carrier and the first individual sector exhibits a wide relative bearing aperture and a narrow elevation aperture, the mechanically steered sonar comprising a mechanical pointing device to tilt the first pointing direction about an axis of rotation substantially parallel to the main direction allowing the sonar to acquire first acoustic signals resulting from insonifications performed in different pointin
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: July 16, 2019
    Assignee: THALES
    Inventors: Nicolas Mandelert, Pierre Guthmann
  • Patent number: 10340602
    Abstract: The proposed retro-directive quasi-optical system includes at least a lens set and a pixel array. The lens set is positioned on one side of the pixel array and the lens set instantly establishes retro-directive space channels between the pixels in the pixel array and the object(s) distributed in the accessible space defined by the lens set through infinite or finite conjugation. In the pixel array, a number of pixels are arranged as an array and each pixel is composed of at least one pair of transmitter antenna and receiver antenna. To guarantee that the electromagnetic waves transmitted from a pixel into the accessible space may be reflected back to the receiver of the same pixel, the size of each pixel is not larger than the point-spread spot size defined by the lens set, wherein the point-spread spot size can be contributed either from lens diffraction or aberration.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 2, 2019
    Inventor: Ching-Kuang C. Tzuang
  • Patent number: 10324166
    Abstract: A combined pulsed and FMCW AESA radar system is described. The radar system includes an AESA array of radiating elements, an array of TR modules, an RF combiner/splitter, a transmitter, a pulsed radar receiver and an FMCW radar receiver. Each TR module corresponds to a respective radiating element of the array of radiating elements. The transmitter is configured to transmit an excitation signal to excite selected or all radiating elements of the array of radiating elements via the TR modules. When the transmitter is in a pulsed radar mode, the pulsed radar receiver is configured to receive radar return signals via the RF combiner/splitter from radiating elements of the array of radiating elements via the TR modules. When the transmitter is in an FMCW radar mode, the FMCW radar receiver is configured to receive radar return signals from selected radiating elements of the array of radiating elements via the TR modules.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: June 18, 2019
    Assignee: ROCKWELL COLLINS, INC.
    Inventors: James B. West, Eric Itcia
  • Patent number: 10310064
    Abstract: A scanning device generally produces an image having a uniform resolution throughout a target region. To improve radar scanning/lidar scanning, an efficient scan approach to enable a radar device/lidar device to adoptively perform a scan of a target region based on interested regions and/or an adjustable resolution. The apparatus may be a scanning device for scanning. The apparatus performs a first scan over a target region to obtain a plurality of first scan samples at a plurality of locations within the target region. The apparatus generates a saliency map of the target region based on signal intensities of the plurality of first scan samples. The apparatus determines a salient region within the target region based on the saliency map. The apparatus performs at least one second scan over the salient region to obtain at least one second scan sample in the salient region.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Somdeb Majumdar, Ernest Ozaki, Richard Anthony Calle
  • Patent number: 10230176
    Abstract: A radar apparatus includes a first antenna and a second antenna. The first antenna includes a plurality of first antenna elements that are arrayed in a first direction on a surface oriented to a forward direction, as antenna elements configuring the first antenna. The second antenna includes a plurality of second antenna elements that are arrayed in a second direction perpendicular to the first direction on the surface oriented to a forward direction, as antenna elements configuring the second antenna. The radar apparatus emits radar waves in a forward direction using either of the first and second antennas, and receives reflected waves of the radar waves using the other of the first and second antennas.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: March 12, 2019
    Assignee: DENSO CORPORATION
    Inventor: Kazuma Natsume
  • Patent number: 10205236
    Abstract: The present invention discloses an antenna system, where the antenna system includes an antenna module, configured to: receive and/or transmit at least one first radio frequency signal, and at least one second radio frequency signal; a power-split phase-shift network module, configured to control an amplitude and a phase of each radio frequency signal in the antenna module, where control parameters for controlling an amplitude and a phase of each first radio frequency signal are configured according to a beam pointing direction and a beam width that are required by a three-dimensional building region, and control parameters for controlling an amplitude and a phase of each second radio frequency signal are configured according to a beam pointing direction and a beam width that are required by a ground region. Therefore, a problem of high costs and difficulty in obtaining an antenna site and maintaining an antenna is resolved.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: February 12, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaohui Ma, Jianping Zhao
  • Patent number: 10148008
    Abstract: An antenna array device is steered laterally (horizontally) by phase shifting the RF signal at each column of the array. The phase shifting is incremented column by column. Control signals provided to the phase shifters control the steering. The antenna array device may be an MIMO antenna, with at least two arrays. Two different DC control signals may be combined with two RF signals, with the different DC control signals used to control a left or right side of each of the two antenna arrays.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: December 4, 2018
    Assignee: Proxim Wireless Corporation
    Inventor: Cor van de Water
  • Patent number: 10148097
    Abstract: An example method disclosed herein includes: detecting, by a wireless communication component supporting a predetermined number of communication channels, receivers within a communication range of a transmitter. The method also includes: in accordance with a determination that a number of receivers is less than or equal to the predetermined number, dedicating communication channels to each respective receiver. Each dedicated communication channel is used to send information identifying a location of the respective receiver to the transmitter. The method further includes: detecting, by the wireless communication component, an additional receiver within the communication range; and in response to the detecting, determining that an updated number of receivers is greater than the predetermined number.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: December 4, 2018
    Assignee: Energous Corporation
    Inventors: Michael A. Leabman, Gregory Scott Brewer
  • Patent number: 10135295
    Abstract: Systems and methods to generate and transmit power waves are disclosed herein. An example method includes: receiving, by a transmitter, from one or more sensors, location data about a location associated with one or more objects within a transmission field of the transmitter. The one or more sensors may include a proximity sensor configured to send the location data of the one or more objects, and the one or more objects are associated with a maximum permissible exposure (MPE) level. The method also includes: transmitting, by the transmitter, one or more power waves to converge to form a pocket of energy at a location of an electronic device; and transmitting, by the transmitter, one or more power waves to converge destructively to form a null space at the location of the one or more objects, the null space having a power density level that is below the MPE level.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: November 20, 2018
    Assignee: Energous Corporation
    Inventor: Michael A. Leabman
  • Patent number: 10128695
    Abstract: The present disclosure provides a method of wireless transmission of power and Wi-Fi signals to electronic devices. The method includes identifying a first receiver that is associated with a first electronic device that requires power and a second receiver that is associated with a second electronic device that requires Wi-Fi signals, generating RF signals at least in part by converting power provided by a power source, where the transmitter includes a first set of antennas for transmitting RF signals and a second set of antennas for transmitting Wi-Fi signals, and transmitting, to the first receiver, the RF signals using at least two antennas of the first set of antennas connected to the transmitter. The method further includes, while transmitting the RF signals using the at least two antennas of the first set of antennas, simultaneously transmitting, to the second receiver, Wi-Fi signals using the second set of antennas.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: November 13, 2018
    Assignee: Energous Corporation
    Inventors: Michael A. Leabman, Gregory Scott Brewer
  • Patent number: 10063191
    Abstract: A power amplifier system for amplifying an input having a carrier frequency having an amplitude. The system includes a plurality of n amplifiers coupled to an asymmetrical combiner formed of a passive network, each amplifier has an input and an output, the asymmetrical combiner has a plurality of inputs and an output, the output of each amplifier is coupled to an input of the asymmetrical combiner, an impedance viewed at the output of each of the n amplifiers is a function of the amplitude and phase at each of the other n?1 amplifiers. An amplitude/phase controller is coupled to the plurality of n amplifiers or the asymmetrical combiner to control the amplitude/phase at the asymmetrical combiner input. The amplitude/phase controller is configured to present an amplitude/phase at each input of the asymmetrical combiner to target an optimal impedance at the carrier frequency for each of the plurality of n amplifiers.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 28, 2018
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Kaushik Sengupta, Chandrakanth Reddy Chappidi
  • Patent number: 10044103
    Abstract: The present disclosure relates to a wireless communication network node which comprises an antenna arrangement having at least three antenna columns. Each antenna column comprises at least two antenna elements of a first polarization (P1) and at least two antenna elements of a second polarization (P2), orthogonal to the first polarization (P1). For each antenna column, the antenna elements of the first polarization (P1) are connected to a combined port of a corresponding first filter device, and the antenna elements of the second polarization (P2) are connected to a combined port of a corresponding second filter device. Each of the filter devices is arranged to separate signals of different frequency bands between the respective combined port and respective filter ports. The antenna arrangement is arranged for transmission at two different channels (TX1, TX2) and reception at four different channels (RX1, RX2, RX3, RX4) for three different frequency bands (f1, f2, f3).
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: August 7, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Henrik Jidhage
  • Patent number: 10014729
    Abstract: A rotational deviation and a positional deviation of a power transmission antenna and a power reception antenna are adjusted using an amount of electric power received in adjustment antenna elements provided on the same plane as the power transmission antenna and the power reception antenna.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: July 3, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Hiroyuki Tani
  • Patent number: 9917714
    Abstract: Apparatus (100) is described comprising: an antenna array (1021 . . . 102N); a plurality of units (1041 . . . 104N), each unit configured to mix a radio frequency signal from one or more of the antennas (102) with oscillating signals having phases defined by a global signal and to provide in-phase and quadrature-phase signals; a constellation rotation system configured to, for each unit, rotate a constellation point associated with the in-phase and quadrature-phase signals by a rotation angle to provide adjusted in-phase and quadrature-phase signals; signal buses (106, 107) for global in-phase and quadrature-phase signals configured to receive the adjusted in-phase and quadrature-phase signals, respectively, from a plurality of the units; a feedback system configured to, for each unit, compare one or more of the adjusted in-phase and quadrature-phase signals with one or more of the global in-phase and quadrature-phase signals to determine an error in the rotation angle.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: March 13, 2018
    Assignee: Phasor Solutions Limited
    Inventor: Richard Hammond Mayo
  • Patent number: 9905921
    Abstract: A method and apparatus is disclosed herein for antenna element placement are disclosed. In one embodiment, an antenna comprises an antenna feed to input a cylindrical feed wave; a single physical antenna aperture having at least one antenna array of antenna elements, where the antenna elements are located on a plurality of concentric rings concentrically located relative to an antenna feed, wherein rings of the plurality of concentric rings are separated by a ring-to-ring distance, wherein a first distance between elements along rings of the plurality of concentric rings is a function of a second distance between rings of the plurality of concentric rings; and a controller to control each antenna element of the array separately using matrix drive circuitry, where each of the antenna elements is uniquely addressed by the matrix drive circuitry.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: February 27, 2018
    Assignee: KYMETA CORPORATION
    Inventors: Mohsen Sazegar, Nathan Kundtz
  • Patent number: 9887455
    Abstract: A method and apparatus for aperture segmentation are disclosed. In one embodiment, the antenna comprises an antenna feed to input a cylindrical feed wave and a physical antenna aperture coupled to the antenna feed and comprising a plurality of segments having antenna elements that form a plurality of closed concentric rings of antenna elements when combined, where the plurality of concentric rings are concentric with respect to the antenna feed.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: February 6, 2018
    Assignee: KYMETA CORPORATION
    Inventors: Mohsen Sazegar, Nathan Kundtz, Steve Linn
  • Patent number: 9880262
    Abstract: A radar apparatus includes: a transmitting antenna including a first antenna and a second antenna that transmit transmission waves; a signal processor configured to determine a mounted state of the radar apparatus on the vehicle; and a phase adjuster that adjusts at least one of phases of transmission signals output to the first antenna and the second antenna of the transmitting antenna. The signal processor controls the phase adjuster to adjust the at least one of the phases of the transmission signals based on the mounted state determined by the signal processor.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: January 30, 2018
    Assignee: FUJITSU TEN LIMITED
    Inventor: Eisuke Hayakawa
  • Patent number: 9843201
    Abstract: The present disclosure describes a plurality of antenna arrangements that may be suitable for wireless power transmission based on single or multiple pocket-forming. Single or multiple pocket-forming may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power. ‘The antenna arrangements may vary in size and geometry, and may operate as a single array, pair array, quad arrays or any other suitable arrangement, which may be designed in accordance with the desired application.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: December 12, 2017
    Assignee: Energous Corporation
    Inventors: Michael A. Leabman, Gregory Scott Brewer
  • Patent number: 9810768
    Abstract: An angle-resolving radar sensor, e.g., for motor vehicles, includes; an antenna having multiple antenna elements which are each switchable to one of multiple evaluation channels; and an evaluation device for determining the angle of incidence of a received signal based on the amplitudes measured in the evaluation channels. The number of antenna elements is greater than the number of evaluation channels and a switching device is provided to connect the evaluation channels alternatingly to different selections of antenna elements.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: November 7, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Volker Gross, Michael Schoor
  • Patent number: 9810774
    Abstract: A multi-beam frequency-modulated continuous wave (FMCW) radar system designed for short range (<20 km) operation in a high-density threat environment against highly maneuverable threats. The multi-beam FMCW system is capable of providing continuous updates, both search and track, for an entire hemisphere against short-range targets. The multi-beam aspect is used to cover the entire field of regard, whereas the FMCW aspect is used to achieve resolution at a significantly reduced computational effort.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: November 7, 2017
    Assignee: The Boeing Company
    Inventor: Peter S. Wittenberg
  • Patent number: 9450449
    Abstract: The present disclosure describes a plurality of antenna arrangements that may be suitable for wireless power transmission based on single or multiple pocket-forming. Single or multiple pocket-forming may include one transmitter and at least one or more receivers, being the transmitter the source of energy and the receiver the device that is desired to charge or power. ‘The antenna arrangements may vary in size and geometry, and may operate as a single array, pair array, quad arrays or any other suitable arrangement, which may be designed in accordance with the desired application.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: September 20, 2016
    Assignee: Energous Corporation
    Inventors: Michael A. Leabman, Gregory Scott Brewer
  • Patent number: 9379439
    Abstract: A phased-array antenna system includes an array of antenna feed elements that produces a radiation pattern to provide spot beams within which to receive a signal in a frequency band and carrying communication from a terminal at a known geographic location. A beamformer forms the spot beams; and a channelizer divides the frequency band into frequency subbands, and measures power levels of the signal over respective frequency subbands. And an antenna controller selects a frequency subband based on the measured power levels indicating that the signal includes an identifiable interference, and calculates a set of beam weights based on the measured power level over the selected frequency subband, and based on the known geographic location of the terminal. The beamformer, then, forms the spot beams based on the calculated set of beam weights to thereby suppress at least some of the identifiable interference from the signal.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 28, 2016
    Assignee: The Boeing Company
    Inventors: Raenaurd D. Turpin, Murat E. Veysoglu
  • Patent number: 9366751
    Abstract: A method for ascertaining and compensating for a misalignment angle of a radar sensor of a vehicle, includes generating a first set of data which contains information about a measured alignment of the radar sensor with respect to an instantaneous movement of the vehicle; generating a second set of data which contains information about a measured alignment of the reference axes defined at the vehicle with respect to the instantaneous movement of the vehicle; ascertaining a misalignment angle by comparing the generated first set of data to the generated second set of data; compensating for the ascertained misalignment angle by changing an emission direction of the main lobe of the antenna characteristic as a function of the ascertained misalignment angle.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: June 14, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dirk Steinbuch, Raik Schnabel
  • Patent number: 9294040
    Abstract: A power amplifier includes an output terminal, capacitive element groups including capacitive elements, and amplifier groups including amplifiers. Capacitive elements of the capacitive element groups are disposed on a first circle whose center is located on the output terminal. Amplifiers of the amplifier groups corresponding to the capacitive elements of the capacitive element groups are disposed on a second circle, which is concentric with and larger than the first circle. Each of the capacitive elements of the capacitive element groups is connected to both the output terminal and the corresponding amplifier of the amplifiers of the amplifier groups.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: March 22, 2016
    Assignee: PANASONIC CORPORATION
    Inventors: Yukio Okazaki, Akinori Daimo
  • Patent number: 9270359
    Abstract: Controlling the polarization state of signals to be transmitted from a MIMO capable radio base station node to a plurality of user equipment, which radio base station node comprises a precoder unit connecting a first and a second virtual antenna port to a respective first and second transmit antenna port, by the steps of controlling (S10) a relative phase between transmitted signals from the first and second transmit antenna port to provide a predetermined pair of orthogonal polarization states for signals transmitted on the first and second virtual antenna ports, and interchanging (S20) the polarization states of the first and second virtual antenna ports, to provide transmitted polarized signals with alternating polarization states.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: February 23, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Henrik Asplund, Andres Reial, Bo Hagerman, Fredrik Ovesjö
  • Patent number: 9231526
    Abstract: An SCPA includes a pad, capacitative elements, amplifiers on an IC chip. The capacitative elements are disposed on a first circle whose center is located on the pad. The amplifiers which correspond to the capacitative elements are disposed on a second circle which is a concentric circle larger than the first circle. The pad, each of the capacitative elements, and a corresponding one of the amplifiers are aligned in a line so that the length of wiring is the shortest.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: January 5, 2016
    Assignee: PANASONIC CORPORATION
    Inventors: Yukio Okazaki, Akinori Daimo
  • Patent number: 9075130
    Abstract: There is provided a calculation device for a radar apparatus which is configured to specify a direction of a target based on respective reception signals of a plurality of antennae. A calculation unit is configured to use a predetermined estimation algorithm of estimating angles of targets corresponding to a preset separable-number from the respective reception signals, set an arbitrary separable-number to generate a mode vector from the estimated angles of the targets, obtained by the predetermined estimation algorithm, and determine whether the set separable-number is proper or not based on a magnitude of an orthogonal component calculated from the mode vector and an input vector of the respective reception signals.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: July 7, 2015
    Assignee: FUJITSU TEN LIMITED
    Inventor: Yasuhiro Kurono
  • Patent number: 8994584
    Abstract: Embodiments of the present invention generally relate to motion compensation, and in particular to an autofocus-based compensation (ABC) systems and methods for a ground moving target indication platform. According to one embodiment, a method for autofocus based compensation of range data acquired from an object in motion is provided. The method may include: receiving range data; steering at least one receive beam of the range data in a desired direction; transforming the range data into the range domain; determining the width of a main clutter lobe; excluding data that is not part of the main lobe clutter response; transforming the main-lobe clutter response into the range domain; calculating a phase correction term; and applying the phase correction to the original range data.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: March 31, 2015
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kenneth I. Ranney, Geoffrey H. Goldman, Roberto Innocenti, Jerry Lee Silvious
  • Patent number: 8791854
    Abstract: One embodiment of the present invention relates to a radar transmitter comprised within a single integrated chip substrate, which is capable of continuous beam steering of a transmitted radar beam as well as an option to change the physical position of the origin of the transmit radar beam. The radar transmitter has a signal generator that generates an RF signal. The RF signal is provided to a plurality of independent transmission chains, which contain independently operated vector modulators configured to introduce an individual phase adjustment to the high frequency input signal to generate separate RF output signals. A control unit is configured to selectively activate a subset of (e.g., two or more) the independent transmission chains. By activating the subset of independent transmission chains to generate RF output signals with separate phases, a beam steering functionality is enabled. Furthermore, the subset defines a changeable position of the transmitted radar beam.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: July 29, 2014
    Assignee: Infineon Technologies AG
    Inventors: Johann Peter Forstner, Udo Gerlach
  • Patent number: 8749430
    Abstract: In one embodiment, an active array antenna device includes: M (M?2) bandpass filters to filter signals received by M antenna elements; M low noise amplifiers to amplify the filtered received signals; M distributors to distribute respective of the M amplified signals into N (N?2) distributed signals; M sets of N phase shifters provided for respective of the M distributors to shift phases of the N distributed signals; M sets of N attenuators to attenuate N phase-shift signals; N beam synthesis circuits provided for N sets of the M attenuators to synthesize a beam by summing attenuator outputs from the M attenuators corresponding to the M distributors; a heat insulating container accommodating the low noise amplifiers and the receiving filters and formed of a superconductor material; and a cooler to cool the receiving filters and the low noise amplifiers to make the receiving filters in a superconducting state.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: June 10, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuyoshi Shinonaga, Hiroyuki Kayano
  • Patent number: 8717229
    Abstract: An active antenna array is arranged to activate subsets of switchable elements causing the antenna to form a first beam having a first beam pattern, and later to form a second beam having a second beam pattern of substantially identical far field radiation pattern to the first beam pattern but with different origins. A receiver receives radiation reflected from a target back to the antenna when the antenna is configured with the first beam pattern and then when configured with the second beam pattern, and compares the phase of the radiation received at the receiver when the antenna is configured with the first beam pattern with the phase of the radiation received at the receiver when the antenna is configured with the second beam pattern to provide a phase difference signal. A target locating means determines the angular location of the target from the phase difference signal.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: May 6, 2014
    Assignee: TRW Automotive US LLC
    Inventor: Richard Blachford
  • Patent number: 8626084
    Abstract: An integrated circuit for transmit and receive matching is described. The integrated circuit includes a transmit amplifier. The transmit amplifier includes a first transistor, a second transistor and a first inductor. The first inductor couples the first transistor to the second transistor. The integrated circuit also includes a low noise amplifier. The low noise amplifier includes a third transistor, a fourth transistor, the first inductor, a second inductor, a third inductor and a transformer. The second inductor couples the first inductor to the third transistor. The third inductor couples the third transistor to ground.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 7, 2014
    Assignee: QUALCOMM, Incorporated
    Inventors: Ngar Loong A Chan, Jonghoon Choi, Bindu Gupta
  • Patent number: 8587470
    Abstract: Provided is a radar apparatus including an envelope detector unit that acquires an envelope component of a signal transmitted from a receiving antenna in at least one combination of a plurality of combinations of transmitting antennas and receiving antennas whose spatial phases become equal to each other in the array antenna; a determination unit that determines an amount of compensation in the at least one combination based on the envelope component acquired by the envelope detector unit; and a compensator unit that compensates a phase of a signal transmitted from each of the receiving antennas before aperture synthesis by using the amount of compensation determined by the determination unit, or compensates a phase of a signal radiated from the transmitting antenna in another combination.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: November 19, 2013
    Assignee: Fujitsu Limited
    Inventor: Kazuo Shirakawa
  • Patent number: 8576117
    Abstract: A radar apparatus including a transmit/receive antenna having a plurality of channels, a comparator coupled to the antenna channels for providing receive signal sum and difference channels, a radar receiver, a coupler for coupling the sum and difference channels to the radar receiver, a radar transmitter for providing a signal to be transmitted, a coupler for coupling the transmitter to a cross-channel port of the comparator, and an adjuster for adjusting a phase length of at least one antenna channel so that when the apparatus is transmitting, the transmitted signals from the antenna channels have a specified relative phase relationship.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: November 5, 2013
    Assignee: MBDA UK Limited
    Inventor: David Lynam
  • Patent number: 8558734
    Abstract: A ground based avian radar receive antenna is implemented using a vertically oriented offset parabolic cylindrical antenna. The desired azimuth beamwidth is determined by the width of the parabolic cylinder reflector surface and the desired elevation beamwidth by the height of the parabolic cylinder reflector surface. A vertical array of antenna elements is mounted along the vertical focal line to provide electronic scanning in elevation. Low sidelobe levels are obtained using tapered antenna element illumination. Low cost modular construction with high reflector accuracy is obtained by attaching a thin metal reflector to thin ribs machined or stamped in the shape of the parabolic cylinder reflector surface. The antenna is enclosed in a radome and mechanically rotated 360 degrees in azimuth.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: October 15, 2013
    Inventor: Gregory Hubert Piesinger
  • Patent number: 8514383
    Abstract: Arbitrarily deploying scanning polarized RF reference sources and using them to establish a full position and angular orientation reference coordinate system or a full angular orientation reference coordinate system that objects property equipped with polarized RF sensors could use to determine their angular position and/or orientation relative to the reference coordinate system.
    Type: Grant
    Filed: September 18, 2010
    Date of Patent: August 20, 2013
    Assignee: Omnitek Partners LLC
    Inventor: Jahangir S. Rastegar
  • Patent number: 8446577
    Abstract: A method for determining an angular orientation of a sensor relative to a source. The method including: amplitude modulating at least two synchronized polarized Radio Frequency (RF) carrier signals with a predetermined relationship between their amplitude modulation of their electric field components and their polarization states to provide a scanning polarized RF reference source with a desired scanning range, pattern and frequency; detecting the scanning polarized RF reference source at the sensor; and using peak detection or pattern matching analysis on a signal detected at the sensor to determine the angular orientation of the sensor relative to scanning polarized RF reference source.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 21, 2013
    Assignee: Omnitek Partners, LLC
    Inventor: Jahangir S. Rastegar
  • Patent number: 8412126
    Abstract: Methods of forming a downlink beam in an adaptive antenna system of a communications system that may reduce inter-system and/or intra-system interference include receiving vectors of signals including signals transmitted by user terminals of the communications system and signals transmitted by transceivers of an independent communications system, obtaining spatial information for the user terminals of the communications system and the transceivers of the independent communications system, generating complex transmitting weights that form spatial nulls directed at the transceivers of the independent communications system, and transmitting a downlink communications signal using the complex transmitting weights. Related systems are also disclosed.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: April 2, 2013
    Assignee: ATC Technologies, LLC
    Inventors: Peter D. Karabinis, Dunmin Zheng
  • Patent number: 8390521
    Abstract: An antenna array for radar transceivers, in particular for ascertaining distance and/or speed in the surroundings of vehicles, a first antenna part being situated on a carrier and a second antenna part being situated on another carrier situated at a distance from the first. The first antenna part has two generally rectangular primary exciter patches which adjoin each other on one edge, where they are short-circuited toward ground, two primary exciter patches have two separate supply lines, and the second antenna part comprises two mutually separated rectangular secondary exciter patches, which partially cover the primary exciter patches and which have, in the region of the ground short-circuit of the primary exciter patches, in the beam direction, a distance from each other that at least exposes the ground short-circuit.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: March 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Hasch, Ewald Schmidt
  • Patent number: 8345511
    Abstract: A broadband blazed array has a plurality of elements. The elements are arranged side-by-side in a non-parallel spaced apart fashion with center-to-center spacing between adjacent elements being identical along cross-sections of the array that are aligned with the array's endfire directions.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: January 1, 2013
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Richard J. Rikoski
  • Publication number: 20120313812
    Abstract: A method for determining an angular orientation of a sensor relative to a source. The method including: amplitude modulating at least two synchronized polarized Radio Frequency (RF) carrier signals with a predetermined relationship between their amplitude modulation of their electric field components and their polarization states to provide a scanning polarized RF reference source with a desired scanning range, pattern and frequency; detecting the scanning polarized RF reference source at the sensor; and using peak detection or pattern matching analysis on a signal detected at the sensor to determine the angular orientation of the sensor relative to scanning polarized RF reference source.
    Type: Application
    Filed: December 22, 2009
    Publication date: December 13, 2012
    Applicant: OMNITEK PARTNERS LLC
    Inventor: Jahangir S. Rastegar
  • Patent number: 8299959
    Abstract: The invention relates to an imaging method with synthetic aperture for determining an incident angle and/or a distance of a sensor from at least one object in space, wherein at each of a number of aperture points one echo profile is sensed. Advantageously, for several angles assumed as the incident angle, one phase correction value and/or one distance correction value is calculated, adapted profiles are generated based on the echo profiles by adapting the phase with the phase correction value for each assumed angle and/or by shifting the distance with the distance correction value, for the assumed angle, the adapted profiles are summed or integrated, and a probability distribution is derived, and a probability value for the incident angle and/or for the distance is determined therefrom. A determination of the incident angle is also possible independently of the distance, wherein it is possible to only consider velocities or accelerations.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: October 30, 2012
    Assignee: Symeo GmbH
    Inventors: Martin Vossiek, Stephan Max
  • Patent number: 8299958
    Abstract: An airborne radar device having a given angular coverage in elevation and in azimuth includes a transmit system, a receive system and processing means for carrying out target detection and location measurements. The transmit system includes: a transmit antenna made up of at least a first linear array of radiating elements focusing a transmit beam, said arrays being approximately parallel to one another; at least one waveform generator; means for amplifying the transmit signals produced by the waveform generator or generators; and means for controlling the transmit signals produced by the waveform generator or generators, said control means feeding each radiating element with a transmit signal. The radiating elements being controlled for simultaneously carrying out electronic scanning of the transmit beam in elevation and for colored transmission in elevation.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: October 30, 2012
    Assignee: Thales
    Inventors: Stépahne Kemkemian, Pascal Cornic, Patrick Le Bihan, Myriam Nouvel-Fiani
  • Patent number: 8259292
    Abstract: A method of providing a polarized radio frequency scanning source is provided. The method including amplitude modulating at least two synchronized polarized radio frequency (RF) carrier signals with a predetermined relationship between their amplitude modulation of their electric field components and their polarization states to provide a scanning polarized RF reference source with a desired scanning range, pattern and frequency. The two or more synchronized polarized RF carrier signals with the predetermined relationship between their amplitude modulation can obtain a periodic or non-periodic scanning range, rate and frequency.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: September 4, 2012
    Assignee: Omnitek Partners LLC
    Inventors: Jahangir S. Rastegar, Thomas Spinelli
  • Patent number: 8259005
    Abstract: A true time delay beamforming system and calibration method for transmission and reception of a beam is disclosed. The true time delay beamforming system comprises at least one input signal received by at least one signal conditioning device, wherein the signal conditioning device is adapted to provide selective, independent, and variable control of one of a phase delay, a time delay and an amplitude of the input signal to produce an output signal. A control logic device is adapted to provide a control logic signal to the at least one signal conditioning device for selectively activating and controlling the signal conditioning device. The true time delay beamforming system may further include an automatic calibration system that generates an error correction signal based on errors detected in the output signal, and selectively adjusts the control logic signal based thereon.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: September 4, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Lawrence K. Lam, Albert Ngo
  • Patent number: 8253622
    Abstract: A device and a method for the improved directional estimation and decoding by means of secondary radar signals. The device includes: at least one array of antenna elements; a low noise first amplifier and bandpass filter combination connected to a plug-in connector S of the respective antenna elements; a first linear amplifier being connected at a filter output of said combination for amplifying the band-limited signal; a mixer connected to the first linear amplifier for the frequency conversion into a ZF region; a second linear amplifier and bandpass filter combination connected to the mixer output for amplifying and limiting the bandwidth of the signal in the ZF region; a first analog-to-digital converter connected to the second bandpass filter; a configurable signal processor connected to the first analog-to-digital converter; and a processing unit connected to the configurable signal processors.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: August 28, 2012
    Assignee: iAd Gesellschaft für Informatik, Automatisierung und Datenverarbeitung mbH
    Inventors: Hermann Hampel, Ulrich Berold, Christoph Reck, Lorenz-Peter Schmidt, Jochen Weinzierl
  • Patent number: 8183935
    Abstract: This invention describes new and improved phased shifted injection oscillator, a phased shifted injection locked push-push oscillator and a phased array antennas (PAA). The PAAs in accordance with an exemplary embodiment of the present invention are low cost, and therefore can be used in various commercial applications, such as wireless communication or satellite mobile television.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: May 22, 2012
    Inventors: Alberto Milano, Hillel Weinstein
  • Patent number: 8174433
    Abstract: According to one embodiment, bias estimation and orbit determination include receiving measurements in real time. The measurements include radar measurements and radar array orientation measurements. The radar measurements are generated by a radar system and indicate the location of a target. The radar array orientation measurements are generated by a navigation system and indicate the orientation of a radar array of the radar system. A state variable set is used. The state variable set includes measurement variables and dynamic bias variables. For example, a state variable set may include orbit position, orbit velocity, radar orientation, and radar measurement variables, which in turn may include dynamic bias variables such as orientation bias variables and measurement bias variables. A measurement variable is associated with a measurement, and a dynamic bias variable is associated with bias of a measurement.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: May 8, 2012
    Assignee: Raytheon Company
    Inventor: Michael E. Hough
  • Patent number: 8169363
    Abstract: An antenna device includes an antenna substrate and a feed line substrate. The antenna substrate includes subarray antennas, feeding interfaces and a back surface. The subarray antennas are arranged parallel with an interval on a plane. Each subarray antenna includes antenna elements and first feed lines. The first feed lines feed signals from the feeding interface on back surface to the antenna elements. The feed line substrate is attached along back surface and includes second feed lines, first and second mode transformers. Each second feed line has one and other ends portions. Other end portion has wider width than one end portion. Each first mode transformer is located in one end portion and connected to the feeding interface. Each second mode transformer is located in other end portion. One end portions are arranged in a line with interval, and other end portions are alternately arranged across one end portions.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 1, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsu Shijo, Shuichi Obayashi