Assortment of radar sensors

Patent metadata

Field	Value
Publication number	US-12241994-B2
Application number	US-202217862289-A
Country	US
Kind code	B2
Filing date	Jul 11, 2022
Priority date	Jul 22, 2021
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

An assortment of radar sensors in different variant embodiments. Each radar sensor has: a housing terminated by a radome, a circuit board that is equipped on the side facing away from the radome with at least one radio-frequency module, and an antenna structure on the side of the circuit board facing the radome. The housing is realized identically in all variant embodiments. The antenna structure has a planar antenna structure in at least one variant embodiment, and has a hollow conductor structure in at least one variant embodiment.

First claim

What is claimed is:

1. A method of manufacturing an assortment of radar sensors in different variant embodiments, the method comprising:
in a single production run, producing a plurality of identical base structures, each for a respective one of the radar sensors, the plurality of identical base structures each including:
a housing; and
a circuit board equipped with at least one radio-frequency module;

subsequent to the single production run:
applying a planar antenna structure on a first side of the circuit board of each of one or more of a first subset of the plurality of identical base structures, wherein each of the one or more of the first subset has a respective radome arranged over the respective first side of the respective circuit board so that the respective planar antenna structure faces the radome, with the at least one radio-frequency module of the respective radar sensor facing away from the radome; and
applying a hollow conductor structure on a first side of the circuit board of each of one or more of a second subset of the plurality of identical base structures, wherein each of the one or more of the second subset has a respective radome arranged over the respective first side of the respective circuit board so that the respective hollow conductor structure faces the radome, with the at least one radio-frequency module of the respective radar sensor facing away from the radome.

2. The method as recited in claim 1 , wherein, in the single production run, all of the identical base structures of the radar sensors are provided with an identical interface for an exchange of data with a control device.

3. The method as recited in claim 1 , wherein, in the single production run, all of the identical base structures of the radar sensors are provided with an identical heat distributor plate inside the housing.

4. The method as recited in claim 1 , wherein the hollow conductor structure is a one-layer hollow conductor structure.

5. The method as recited in claim 1 , further comprising:
in at least one of the variant embodiments having the planar antenna structure, situating in the housing an absorber or shielding structure in an intermediate space between the circuit board and the radome.

Assignees

• Bosch Gmbh Robert

Inventors

• Baur Klaus
• Hollaender Christian
• Schoor Michael
• Klett Gustav
• Hildebrandt Juergen
• Pham Minh Nhat

Classifications

• H01Q1/02

  Arrangements for de-icing; Arrangements for drying-out {; Arrangements for cooling; Arrangements for preventing corrosion} · CPC title

• G01S7/028

  Miniaturisation, e.g. surface mounted device [SMD] packaging or housings · CPC title

• H01Q17/00

  Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems · CPC title

• G01S13/931

  of land vehicles · CPC title

• H01Q9/0407

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title