Traveling wave antenna for electromagnetic heating
US10165630B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Dec 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/802
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency antenna for radiating electromagnetic energy into a reservoir filled with a target material, the antenna being operatively connected to a feed transmission line. The antenna includes a waveguide, at least one slot formed in the outer waveguide layer, and a sleeve portion enclosing at least a portion of the waveguide. The sleeve portion comprises at least first and second dielectric layers where the permittivity of the second dielectric layer is higher than the permittivity of the first dielectric layer and the first dielectric layer is positioned in closer proximity to the waveguide than the second dielectric layer. When the antenna is inserted into the reservoir, the input impedance of the antenna remains matched to the feed transmission line for a wide range of target materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.