Patent · US Active

Dielectric filling member with microwave absorbing element

US10677635B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

ROSEMOUNT TANK RADAR AB · SE

Inventors

Håkan Fredriksson · Linköping, SE
Peter Elmberg · Mölndal, SE
Magnus Ohlsson · Norsholm, SE

Key dates

Filing date	Oct 31, 2017
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Jun 13, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q19/08
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A radar level gauge including a wave guiding structure and a cavity formed inside the wave guiding structure, and a dielectric filling member arranged at least partly within said cavity. The dielectric filling member includes a main body formed of a polymer material, at least one microwave absorbing element formed of a modified polymer material providing a microwave attenuation of at least 1 dB/centimeter at an operating frequency of the radar level gauge, the modified polymer material being obtained by modifying said polymer material with a filler material, wherein the at least one microwave absorbing element is integrally formed with said main body by sintering.

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