Antenna with dynamically variable operating band
US6891501B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Feb 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/061
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna (100) includes at least one antenna radiating element (108, 110) and a dielectric structure (102) defining a cavity containing a fluid dielectric (106). The dielectric structure (102) can be a dielectric circuit board substrate with a ground plane (116) provided opposed to the antenna radiating elements (108, 110). The fluid dielectric (106) is electrically and magnetically coupled to the antenna radiating element. Further, a composition processor (301) is provided for selectively varying a composition of the fluid dielectric (106) so as to dynamically change an electrical characteristic of the antenna radiating element (108) in response to a control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.