公开(公告)号：US20220352638A1

公开(公告)日：2022-11-03

申请号：US17661398

申请日：2022-04-29

Applicant: Aptiv Technologies Limited

Inventor： Dennis Vollbracht ,  Sachit Varma

IPC: H01Q9/04 ,  H01Q1/42 ,  H01Q15/10

Abstract: This document describes waveguides that use a combination of air dielectric filled channels and non-air dielectric filled channels to obtain beneficial attributes of both air and dielectric waveguides. EM energy loss inside the waveguide compares to a traditional air waveguide. However, with a smaller size than a comparable air waveguide, the example waveguide can occupy less area of a chip or package than a comparable air waveguide of a traditional design. The waveguide has a routing portion with hollow channels filled with an air dielectric. Radiation channels corresponding to each of the hollow channels are loaded with a non-air dielectric. A surface of each of the radiation channels allows EM energy to escape the non-air dielectric. The described waveguide may be particularly advantageous for use in an automotive context, for example, detecting objects in a roadway in a travel path of a vehicle.

公开(公告)号：US20240012097A1

公开(公告)日：2024-01-11

申请号：US18345920

申请日：2023-06-30

Applicant: Aptiv Technologies Limited

Inventor： Dennis Vollbracht ,  Sadam Hussain Kazimi ,  Sachit Varma

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

CPC classification number: G01S7/024 ,  G01S13/931 ,  G01S7/03

Abstract: A radar system for a vehicle includes: at least one main transmit antenna configured to transmit main radar waves essentially parallel to a road on which the vehicle is standing or driving; at least one main receive antenna configured to receive reflections of the main radar waves off objects on the road; a first street condition monitoring, SCM, transmit antenna configured to transmit first polarized radar waves essentially directed to the road at a first polarization; a second SCM transmit antenna configured to transmit second polarized radar waves essentially directed to the road at a second polarization different from the first polarization; a first SCM receive antenna configured to receive, at the first polarization, reflections of the polarized radar waves off the road; and a second SCM receive antenna configured to receive, at the second polarization, reflections of the polarized radar waves off the road.

公开(公告)号：US20240012138A1

公开(公告)日：2024-01-11

申请号：US18347368

申请日：2023-07-05

Applicant: Aptiv Technologies Limited

Inventor： Dennis Vollbracht ,  Sadam Hussain Kazimi ,  Sachit Varma

IPC: G01S13/931 ,  G01S7/02 ,  G01S7/03 ,  H01Q1/32

CPC classification number: G01S13/931 ,  G01S7/025 ,  G01S7/026 ,  G01S7/032 ,  H01Q1/3233 ,  G01S2013/9322

Abstract: A radar system for a vehicle includes: a processing device having multiple transmit outputs and multiple receive inputs; a main transmit antenna to transmit main radar waves essentially parallel to a road, and coupled to the processing device via a first transmit output; a main receive antenna to receive reflections of the main radar waves off objects, and coupled via a first receive input; a first street condition monitoring (SCM) transmit antenna to transmit first polarized radar waves essentially directed to the road at a first polarization, and coupled via a second transmit output; and a first SCM receive antenna to receive, at the first polarization, reflections of the polarized radar waves off the road, and coupled via a second receive input. The system can include second SCM transmit and receive antennas coupled via a third transmit output and a third receive input and operating at a second polarization.