Dielectric rod antenna
US6927734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2003 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/225
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A dielectric rod antenna assembly for a level measurement system. The antenna assembly includes a transition structure housed within a coupling sleeve. The transition structure includes a short-circuited waveguide filled with a dielectric material and an exciter element projecting through the waveguide into the material. The transition structure directs electromagnetic energy through the bottom of the dielectric material into a rod antenna attached to the bottom of the coupling sleeve for propagation within the container. The dielectric material includes a longitudinal axial bore having a tapered tip to provide a dielectric-lined waveguide. The bottom end of the dielectric is encircled with a metal ring of a diameter larger than the dielectric to smooth the transition into the rod antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.