Radar measuring device

Patent metadata

Field	Value
Publication number	US-12174052-B2
Application number	US-202117343259-A
Country	US
Kind code	B2
Filing date	Aug 6, 2021
Priority date	Sep 17, 2020
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

A radar measuring device with a housing at least partially filled with a potting compound, a general-diffuse planar antenna arranged in the housing, at least one transmitter and at least one receiver that are connected to the planar antenna, and a lens arranged in a main emission direction of the planar antenna for radiation emitted from the planar antenna, wherein a separating apparatus is arranged in the housing and is designed and arranged in such a way that a penetration of the potting compound into an area within the separating apparatus and between the antenna and the lens is prevented.

First claim

We claim:

1. A radar measuring device with a housing at least partially filled with a potting compound, a general-diffuse planar antenna arranged in the housing, at least one transmitter and at least one receiver that are connected to the planar antenna, and a lens arranged in a main emission direction H of the planar antenna for radiation emitted from the planar antenna, wherein a separating apparatus is arranged in the housing and is designed and arranged in such a way that a penetration of the potting compound into an area within the separating apparatus and between the antenna and the lens is prevented, wherein the planar antenna radiates towards the lens without the use of a coupling means.

2. The radar measuring device according to claim 1 , wherein the separating apparatus is made from a plastic.

3. The radar measuring device according to claim 1 , characterized in that the separating apparatus is designed to radially surround the planar antenna at the rear.

4. The radar measuring device according to claim 1 , wherein the separating apparatus is designed to radially surround the lens at the front.

5. The radar measuring device according to claim 1 , wherein the separating apparatus is designed to widen conically in the main emission direction H.

6. The radar measuring device according to claim 1 , wherein the separating apparatus has a front and/or a rear sealing apparatus in the main emission direction.

7. The radar measuring device according to claim 6 , wherein the front sealing apparatus is arranged radially to the separating apparatus.

8. The radar measuring device according to claim 6 , wherein the rear sealing apparatus is arranged axially to the separating apparatus, between the separating apparatus and a carrier for the antenna.

9. The radar measuring device according to claim 6 , wherein the front sealing apparatus and/or the rear sealing apparatus is arranged in a groove of the separating apparatus and is designed as an O-ring.

10. The radar measuring device according to claim 1 , characterized in that the separating apparatus is designed integrally with the housing.

11. The radar measuring device according to claim 1 , wherein the separating apparatus is sealed to a carrier for the antenna.

12. The radar measuring device according to claim 1 , wherein the separating apparatus is made from an electrically conductive plastic.

13. The radar measuring device according to claim 1 , wherein the lens is designed as a plano-convex lens or as a Fresnel lens.

Assignees

• Grieshaber Vega Kg
• Vega Grieshaber

Inventors

• Wälde Steffan
• Weinzierle Christian

Classifications

• H01Q1/525

  between emitting and receiving antennas · CPC title

• H01Q1/40

  Radiating elements coated with or embedded in protective material · CPC title

• G01S13/88

  Radar or analogous systems specially adapted for specific applications (electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00) · CPC title

• G01F25/20

  of apparatus for measuring liquid level · CPC title

• G01S7/028

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