Two-channel directional antenna and a radar level gauge with such an antenna
US8933835B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2012 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Jul 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A two-channel directional antenna for use in a radar level gauge. The antenna comprises a partition wall dividing the antenna into a first partition for emitting an electromagnetic transmit signal, and a second partition for receiving an electromagnetic echo signal, the partition wall having an outer potion located downstream in a direction of radiation of the antenna. The partition wall comprises an electromagnetic de-coupling structure, which is arranged to reduce any leakage of electromagnetic energy from the transmit signal into the echo signal.The electromagnetic de-coupling structure according to the present invention ensures that the leakage of transmit signal into the received signal is reduced to a satisfactory level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.