Tunable slot antenna with capacitively coupled slot island conductor for precise impedance adjustment
US6188369A · kind A · utility
34Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2000 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Jan 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a coaxial resonant slot antenna including a flat rectangular conductive box having its top plate with a slot being defined therein, and a strip conductor disposed inside the box and electrically insulated from the box while high frequency or RF power is fed to the strip, an island conductor is provided in the slot for defining a capacitance between itself and the frame, which capacitance is rendered variable in value by use of a variable capacitance circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.