Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US7834813B2 · kind B2 · utility
64Cited by
27References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2006 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 20, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/045
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna for a communications device having configurable elements controlled to modify an antenna impedance and/or an antenna resonant frequency to improve performance of the communications device. The antenna impedance is controlled to substantially match to an output impedance of a power amplifier that supplies the antenna with a signal for transmission. The antenna resonant frequency is controlled to overcome the effects of various operating conditions that can detune the antenna or in response to an operable frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.