Radar sensor with radome having trenches for reducing coupling between transmit and receive antennas
US11264712B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jul 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/027
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radar sensor module includes a substrate, at least one transmit antenna formed on a surface of the substrate, and at least one receive antenna formed on the surface of the substrate. A radome is disposed over the surface of the substrate and the at least one transmit antenna and the at least one receive antenna, such that a gap is located between the surface of the substrate and an underside of the radome in which a portion of radiation emitted from the at least one transmit antenna can propagate. At least one trench is formed in the underside of the radome and is electromagnetically coupled to the gap, the at least one trench being sized, shaped and positioned with respect to the gap such that the portion of radiation emitted from the at least one transmit antenna is substantially prevented from propagating toward the receiving antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.