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公开(公告)号：US20220209415A1
公开(公告)日：2022-06-30
申请号：US17136393
申请日：2020-12-29
Applicant: Waymo LLC
Inventor： Edwin Lim , Timothy Campbell , Matthew Markel
Abstract: Example embodiments relate to low elevation side lobe antennas with fan-shaped beams. An example radar unit may include a radiating plate having a first side and a second side with an illuminator, a waveguide horn, a waveguide opening, and a radiating sleeve extending into the first side of the radiating plate. The waveguide opening is positioned on the first end of the first side and the radiating sleeve is positioned on the second end of the first side. The radar unit also includes a metallic cover coupled to the first side of the radiating plate such that the metallic cover and the radiating plate form waveguide structures. The waveguide horn is configured to receive, from an external source, electromagnetic energy provided through the waveguide opening via a first waveguide and provide a portion of the electromagnetic energy to the illuminator via a second waveguide such that the portion of the electromagnetic energy radiates off the illuminator and through the radiating sleeve into an environment of the radar unit as one or more radar signals.
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公开(公告)号：US11460569B2
公开(公告)日：2022-10-04
申请号：US17135106
申请日：2020-12-28
Applicant: Waymo LLC
Inventor： Timothy Campbell , Matthew Markel
Abstract: Example embodiments described herein involve techniques for orthogonal Doppler coding for a radar system. An example method may involve causing, by a computing system coupled to a vehicle, a radar unit to transmit a plurality of radar signals into an environment of the vehicle using a two-dimensional (2D) transmission antenna array, wherein the radar unit is configured to use time division multiple access (TDMA) to isolate transmit channels along a horizontal direction of the 2D transmission antenna array and Doppler coding to isolate transmit channels along a vertical direction of the 2D transmission antenna array. The method may further involve receiving, by the computing system and from the radar unit, radar reflections corresponding to the plurality of radar signals, determining information representative of the environment based on the radar reflections, and providing control instructions to the vehicle based on the information representative of the environment.
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公开(公告)号：US11226397B2
公开(公告)日：2022-01-18
申请号：US16532655
申请日：2019-08-06
Applicant: Waymo LLC
Inventor： Benjamin Chen , Adam Brown , Philip Ma , Matthew Markel
IPC: G01S7/03 , G01S13/931 , H01Q1/42 , H01Q1/32
Abstract: Example embodiments relate to slanted radomes for protecting radar units. An example radar system may include a radar unit that includes at least one antenna having a radiation pattern. The radar unit is configured to transmit a radar signal based on the radiation pattern and receive radar signals. In addition, the radar system further includes a radome located in a direction of transmission of the radiation pattern. Particularly, the radome is aligned at an angle relative to a plane of the at least one antenna such that reflections of the transmitted radar signal caused by the radome are directed towards at least one of a null of the radiation pattern and an absorption component.
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Patent Agency Ranking
公开(公告)号：US20210041528A1
公开(公告)日：2021-02-11
申请号：US16532655
申请日：2019-08-06
Applicant: Waymo LLC
Inventor： Benjamin Chen , Adam Brown , Philip Ma , Matthew Markel
Abstract: Example embodiments relate to slanted radomes for protecting radar units. An example radar system may include a radar unit that includes at least one antenna having a radiation pattern. The radar unit is configured to transmit a radar signal based on the radiation pattern and receive radar signals. In addition, the radar system further includes a radome located in a direction of transmission of the radiation pattern. Particularly, the radome is aligned at an angle relative to a plane of the at least one antenna such that reflections of the transmitted radar signal caused by the radome are directed towards at least one of a null of the radiation pattern and an absorption component.
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公开(公告)号：US12164054B2
公开(公告)日：2024-12-10
申请号：US17092665
申请日：2020-11-09
Applicant: Waymo LLC
Inventor： Matthew Markel , Timothy Campbell , Alessandro Temil
IPC: G01S7/02 , G01S13/931
Abstract: Example embodiments relate to methods and systems for implementing radar electronic support measure operations. A vehicle's processing unit may receive information relating to electromagnetic energy radiating in an environment of the vehicle that is detected using a vehicle radar system. The electromagnetic energy originated from one or more external emitters, such as radar signals transmitted by other vehicles. The processing unit may determine a spectrum occupancy representation that indicates spectral regions occupied by the electromagnetic energy and subsequently adjust operation of the vehicle radar system based on the spectrum occupancy representation to reduce or mitigate interference with the external emitters in the vehicle's environment. In some examples, the vehicle radar system may be switched to a passive receive-only mode to measure the electromagnetic energy radiating in the environment from other emitters.
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公开(公告)号：US20230261389A1
公开(公告)日：2023-08-17
申请号：US18307929
申请日：2023-04-27
Applicant: Waymo LLC
Inventor： Edwin Lim , Timothy Campbell , Matthew Markel
CPC classification number: H01Q19/138 , H01Q13/0233 , H01Q5/55 , H01Q1/3275 , H01Q1/3233
Abstract: Example embodiments relate to low elevation side lobe antennas with fan-shaped beams. An example radar unit may include a radiating plate having a first side and a second side with an illuminator, a waveguide horn, a waveguide opening, and a radiating sleeve extending into the first side of the radiating plate. The waveguide opening is positioned on the first end of the first side and the radiating sleeve is positioned on the second end of the first side. The radar unit also includes a metallic cover coupled to the first side of the radiating plate such that the metallic cover and the radiating plate form waveguide structures. The waveguide horn is configured to receive, from an external source, electromagnetic energy provided through the waveguide opening via a first waveguide and provide a portion of the electromagnetic energy to the illuminator via a second waveguide such that the portion of the electromagnetic energy radiates off the illuminator and through the radiating sleeve into an environment of the radar unit as one or more radar signals.
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公开(公告)号：US11670864B2
公开(公告)日：2023-06-06
申请号：US17136393
申请日：2020-12-29
Applicant: Waymo LLC
Inventor： Edwin Lim , Timothy Campbell , Matthew Markel
CPC classification number: H01Q19/138 , H01Q1/3233 , H01Q1/3275 , H01Q5/55 , H01Q13/0233
Abstract: Example embodiments relate to low elevation side lobe antennas with fan-shaped beams. An example radar unit may include a radiating plate having a first side and a second side with an illuminator, a waveguide horn, a waveguide opening, and a radiating sleeve extending into the first side of the radiating plate. The waveguide opening is positioned on the first end of the first side and the radiating sleeve is positioned on the second end of the first side. The radar unit also includes a metallic cover coupled to the first side of the radiating plate such that the metallic cover and the radiating plate form waveguide structures. The waveguide horn is configured to receive, from an external source, electromagnetic energy provided through the waveguide opening via a first waveguide and provide a portion of the electromagnetic energy to the illuminator via a second waveguide such that the portion of the electromagnetic energy radiates off the illuminator and through the radiating sleeve into an environment of the radar unit as one or more radar signals.
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公开(公告)号：US20220390550A1
公开(公告)日：2022-12-08
申请号：US17092665
申请日：2020-11-09
Applicant: Waymo LLC
Inventor： Matthew Markel , Timothy Campbell , Alessandro Temil
IPC: G01S7/02 , G01S13/931
Abstract: Example embodiments relate to methods and systems for implementing radar electronic support measure operations. A vehicle's processing unit may receive information relating to electromagnetic energy radiating in an environment of the vehicle that is detected using a vehicle radar system. The electromagnetic energy originated from one or more external emitters, such as radar signals transmitted by other vehicles. The processing unit may determine a spectrum occupancy representation that indicates spectral regions occupied by the electromagnetic energy and subsequently adjust operation of the vehicle radar system based on the spectrum occupancy representation to reduce or mitigate interference with the external emitters in the vehicle's environment. In some examples, the vehicle radar system may be switched to a passive receive-only mode to measure the electromagnetic energy radiating in the environment from other emitters.
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