Radar level gauge system with improved feed-through
US11061134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2018 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Jul 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar level gauge system, comprising a transceiver; an antenna for radiating an electromagnetic transmit signal from the transceiver towards a surface of the product and for returning an electromagnetic reflection signal back towards the transceiver; a feed-through connecting the transceiver and the antenna; and processing circuitry coupled to the transceiver for determining the filling level based on a relation between the transmit signal and the reflection signal, wherein the feed-through comprises a waveguide arranged between the transceiver and the antenna to receive the transmit signal from the transceiver and guide the transmit signal towards the antenna in a guiding direction, the waveguide comprising an elongated plug arranged in a hollow conductor extending in the guiding direction, wherein the plug comprises a non-conductive sleeve member and a metallic plug member, the non-conductive sleeve member being sealingly joined to a portion of the hollow conductor and to the metallic plug member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.