公开(公告)号：US20220283264A1

公开(公告)日：2022-09-08

申请号：US17664814

申请日：2022-05-24

Applicant: Waymo LLC

Inventor： Adam Brown ,  Tegan Argo ,  Benjamin Chen

IPC: G01S7/02 ,  G01S7/03 ,  G01S13/931

Abstract: Example embodiments relate to corrugated radomes for protecting and concealing components of 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 includes a stepped surface having at least one step that includes a height equal to one-quarter of a wavelength at a frequency of operation of the radar unit. The least one step is positioned on the radome such that the at least one step causes deconstructive interference of reflections of the transmitted radar signal caused by the radome.

公开(公告)号：US20210041529A1

公开(公告)日：2021-02-11

申请号：US16533979

申请日：2019-08-07

Applicant: Waymo LLC

Inventor： Adam Brown ,  Tegan Argo ,  Benjamin Chen

IPC: G01S7/03 ,  G01S7/02 ,  G01S13/93

Abstract: Example embodiments relate to corrugated radomes for protecting and concealing components of 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 includes a stepped surface having at least one step that includes a height equal to one-quarter of a wavelength at a frequency of operation of the radar unit. The least one step is positioned on the radome such that the at least one step causes deconstructive interference of reflections of the transmitted radar signal caused by the radome.

公开(公告)号：US12253623B2

公开(公告)日：2025-03-18

申请号：US17664814

申请日：2022-05-24

Applicant: Waymo LLC

Inventor： Adam Brown ,  Tegan Argo ,  Benjamin Chen

IPC: G01S7/02 ,  G01S7/03 ,  G01S13/931

Abstract: Example embodiments relate to corrugated radomes for protecting and concealing components of 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 includes a stepped surface having at least one step that includes a height equal to one-quarter of a wavelength at a frequency of operation of the radar unit. The least one step is positioned on the radome such that the at least one step causes deconstructive interference of reflections of the transmitted radar signal caused by the radome.

公开(公告)号：US11894595B2

公开(公告)日：2024-02-06

申请号：US18059655

申请日：2022-11-29

Applicant: Waymo LLC

Inventor： Edwin Lim ,  Tegan Argo ,  Marvin Weinstein

IPC: H01P5/107 ,  H01P3/12 ,  H01P3/08 ,  H05K1/02

CPC classification number: H01P5/107 ,  H01P3/082 ,  H01P3/121 ,  H05K1/024 ,  H05K2201/0195

Abstract: Example embodiments relate to substrate integrated waveguide (SIW) transitions. An example SIW may include a dielectric substrate having a top surface and a bottom surface and a first metallic layer portion coupled to the top surface of the dielectric substrate that includes a single-ended termination, an impedance transformer, and a metallic rectangular patch located within an open portion in the first metallic layer portion such that the open portion forms a non-conductive loop around the metallic rectangular patch. The SIW also includes a second metallic layer portion coupled to the bottom surface of the dielectric substrate and metallic via-holes electrically coupling the first metallic layer to the second metallic layer. The SIW may be implemented in a radar unit to couple antennas to a printed circuit board (PCB). In some examples, the SIW may be implemented with only a non-conductive opening that lacks the metallic rectangular patch.

公开(公告)号：US11539107B2

公开(公告)日：2022-12-27

申请号：US17135268

申请日：2020-12-28

Applicant: Waymo LLC

Inventor： Edwin Lim ,  Tegan Argo ,  Marvin Weinstein

IPC: H01P5/107 ,  H01P3/12 ,  H01P3/08 ,  H05K1/02

Abstract: Example embodiments relate to substrate integrated waveguide (SIW) transitions. An example SIW may include a dielectric substrate having a top surface and a bottom surface and a first metallic layer portion coupled to the top surface of the dielectric substrate that includes a single-ended termination, an impedance transformer, and a metallic rectangular patch located within an open portion in the first metallic layer portion such that the open portion forms a non-conductive loop around the metallic rectangular patch. The SIW also includes a second metallic layer portion coupled to the bottom surface of the dielectric substrate and metallic via-holes electrically coupling the first metallic layer to the second metallic layer. The SIW may be implemented in a radar unit to couple antennas to a printed circuit board (PCB). In some examples, the SIW may be implemented with only a non-conductive opening that lacks the metallic rectangular patch.

公开(公告)号：US11385325B2

公开(公告)日：2022-07-12

申请号：US16533979

申请日：2019-08-07

Applicant: Waymo LLC

Inventor： Adam Brown ,  Tegan Argo ,  Benjamin Chen

IPC: G01S7/03 ,  G01S13/931 ,  G01S7/02

Abstract: Example embodiments relate to corrugated radomes for protecting and concealing components of 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 includes a stepped surface having at least one step that includes a height equal to one-quarter of a wavelength at a frequency of operation of the radar unit. The least one step is positioned on the radome such that the at least one step causes deconstructive interference of reflections of the transmitted radar signal caused by the radome.

公开(公告)号：US20220209385A1

公开(公告)日：2022-06-30

申请号：US17135268

申请日：2020-12-28

Applicant: Waymo LLC

Inventor： Edwin Lim ,  Tegan Argo ,  Marvin Weinstein

IPC: H01P3/12 ,  H05K1/02 ,  H01P3/08

Abstract: Example embodiments relate to substrate integrated waveguide (SIW) transitions. An example SIW may include a dielectric substrate having a top surface and a bottom surface and a first metallic layer portion coupled to the top surface of the dielectric substrate that includes a single-ended termination, an impedance transformer, and a metallic rectangular patch located within an open portion in the first metallic layer portion such that the open portion forms a non-conductive loop around the metallic rectangular patch. The SIW also includes a second metallic layer portion coupled to the bottom surface of the dielectric substrate and metallic via-holes electrically coupling the first metallic layer to the second metallic layer. The SIW may be implemented in a radar unit to couple antennas to a printed circuit board (PCB). In some examples, the SIW may be implemented with only a non-conductive opening that lacks the metallic rectangular patch.