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公开(公告)号：US20240176007A1
公开(公告)日：2024-05-30
申请号：US18059770
申请日：2022-11-29
Applicant: NXP B.V.
Inventor： Saif Alhasson
CPC classification number: G01S13/422 , G01S7/032
Abstract: Various embodiments relate to a radar system, including: a transmitter; a transmit antenna connected to the transmitter, wherein the transmit antenna is a circular polarized antenna; a receiver; a receive antenna connected to the receiver, wherein the receive antenna is a dual polarization antenna having a main lobe and ambiguity sidelobes; wherein the radar system is configured to: transmit a first and second radar signal with first and second circular polarizations in first and second modes; receive reflected first and second radar signals; process the received first and second radar signals to detect a target and to produce first and second mode target powers; comparing the first mode target power to the second mode target power to determine which lobe of the antenna in which the target is located.
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Patent Agency Ranking
公开(公告)号：US20220066012A1
公开(公告)日：2022-03-03
申请号：US17006503
申请日：2020-08-28
Applicant: NXP B.V.
Inventor： Feike Guus Jansen , Francesco Laghezza , Saif Alhasson
IPC: G01S13/34 , H04B1/38 , H04B1/00 , H04B1/18 , G01S13/931
Abstract: In imaging radar, examples are directed to uses of multiple sets of transmit antenna included with transceiver circuitry, for transmitting in a plurality of modes. Transmissions may involve having at least one transmit antenna, from each of at least two of the multiple sets, to transmit continuous-wave energy concurrently (simultaneously) in one or more of the plurality of different modes. Transceiver circuitry may include multiple receive antennas which may be receiving reflections of the continuous-wave energy from various targets. Signals from the multiple receive antennas may route to signal processing circuitry. The signal processing circuitry may respond to the received reflections of the continuous-wave energy by assessing differences in antenna gain and/or phase due to transmit antenna position associated with the received reflections. This signal processing assessment may mitigate or resolve at least one spatial ambiguity in at least one direction of arrival dimension associated with the received reflections.
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公开(公告)号：US20250044405A1
公开(公告)日：2025-02-06
申请号：US18787260
申请日：2024-07-29
Applicant: NXP B.V.
Inventor： Saif Alhasson
Abstract: A radar front-end is disclosed, comprising: an array of antennas, each antenna being coupled to first input of a respective one of a plurality of directional couplers, and comprising an end antenna coupled to a first input of a first directional coupler; the first directional coupler having an output configured to be coupled to a receiver unit; a remainder of the directional couplers each having an output coupled to an input of a respective delay line; wherein an output of each delay line is coupled to a second input of a respective neighbouring directional coupler. Radar system comprising the radar front-end are also disclosed.
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公开(公告)号：US20230161021A1
公开(公告)日：2023-05-25
申请号：US18048132
申请日：2022-10-20
Applicant: NXP B.V.
IPC: G01S13/06
CPC classification number: G01S13/06
Abstract: An apparatus comprising a processor configured to:
receive an input dataset indicative of radar signals received at a plurality of antenna elements from a plurality of targets;
define a matrix, Ã, of direction-of-arrival-angle vectors representing an expected response of the radar signals from the target and comprising a function of a direction of arrival angle relative to the antenna elements and including antenna-imperfection-factors that represent the angle dependent effect of antenna imperfections;
define an objective function based on the input dataset and the matrix;
search for a set of the direction of arrival angles for each of the plurality of targets by the repeated evaluation of the objective function for a plurality of candidate matrices based on matrix A, wherein said set is derived from one of the candidate matrices of the plurality of candidate matrices that provides a maximum or minimum evaluation of the objective function.-
公开(公告)号：US11815589B2
公开(公告)日：2023-11-14
申请号：US17006503
申请日：2020-08-28
Applicant: NXP B.V.
Inventor： Feike Guus Jansen , Francesco Laghezza , Saif Alhasson
IPC: G01S13/34 , G01S13/931 , H04B1/00 , H04B1/18 , H04B1/38
CPC classification number: G01S13/34 , G01S13/931 , H04B1/0064 , H04B1/18 , H04B1/38 , G01S2013/93271 , G01S2013/93275
Abstract: In imaging radar, examples are directed to uses of multiple sets of transmit antenna included with transceiver circuitry, for transmitting in a plurality of modes. Transmissions may involve having at least one transmit antenna, from each of at least two of the multiple sets, to transmit continuous-wave energy concurrently (simultaneously) in one or more of the plurality of different modes. Transceiver circuitry may include multiple receive antennas which may be receiving reflections of the continuous-wave energy from various targets. Signals from the multiple receive antennas may route to signal processing circuitry. The signal processing circuitry may respond to the received reflections of the continuous-wave energy by assessing differences in antenna gain and/or phase due to transmit antenna position associated with the received reflections. This signal processing assessment may mitigate or resolve at least one spatial ambiguity in at least one direction of arrival dimension associated with the received reflections.
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公开(公告)号：US20230335919A1
公开(公告)日：2023-10-19
申请号：US17724102
申请日：2022-04-19
Applicant: NXP B.V.
Inventor： Saif Alhasson
Abstract: A dual polarized antenna is described with a dual feed that is suitable for cross polarization isolation. In an example, an antenna has a waveguide having a first rectangular face at an end, a second rectangular face at a second opposite end, and a radiating face between the first rectangular face and the second rectangular face. A first feed is configured to feed a first radio signal having a first polarization into the waveguide. A second feed is configured to feed a second radio signal having a second polarization orthogonal to the first polarization into the waveguide. A first plurality of polarized emitters on the radiating face are arranged in a first line along the radiating face to emit the first radio signal, and a second plurality of polarized emitters on the radiating face are arranged in a second line along the radiating face to emit the second radio signal.
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