Tunable slot antenna
US6028561A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Mar 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/103
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In order to offer a tunable slot antenna capable of varying an impedance matching center frequency thereof, there is provided a coaxial resonant slot antenna for supplying RF power to a strip conductor placed in a flat conductive cubic with a slot formed in its upper surface and electrically insulated from the flat conductive cubic, wherein a variable capacitor is electrically connected between one point lying in the neighborhood thereof including an end far from a RF power connection point on the strip conductor and a side wall of the flat conductive cubic, and a d.c. voltage to be applied across the variable capacitor is supplied to the connection point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.