Patent · US Active

Parabolic aerial with a conical diffusion disc for fill level radar

US7619581B2 · kind B2 · utility

2Cited by

7References

19Claims

0Family size

Assignee

VEGA Grieshaber KG · DE

Inventors

Klaus Kienzle · Zell am Harmersbach, DE
Fritz Lenk · Schiltach, DE
Josef Fehrenbach · Lenzkirch, DE

Key dates

Filing date	Oct 12, 2006
Grant date	Nov 17, 2009
Priority date	—
Expiry date	Oct 18, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q19/134
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Reflections on the aerial system of a fill level radar result in reduced measuring quality at short range. Small echo signals at short range can thus disappear in the noise. According to one embodiment of the present invention a parabolic aerial for a fill level radar is stated, which parabolic aerial comprises a parabolic mirror, an exciter and a diffusion disc. The diffusion disc is used for laterally removing interfering electromagnetic waves that would otherwise be absorbed by the exciter. In this way the decay behaviour at short range can be reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.