Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US8000737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2007 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Apr 4, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49016
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communications apparatus comprising a first antenna, a first serial configuration of a first power amplifier and a first matching network, a second serial configuration of a second power amplifier and a second matching network, a switching element for switchably selecting the first or the second serial configuration for supplying a signal to the first antenna, the first and the second power amplifiers supplying a respective first signal of a first power and a second signal of a second power different than the first power to the first antenna for transmitting and the first and the second matching networks presenting respective first and second impedances to the respective first and second power amplifiers, the first and the second impedances responsive respectively to a power-related parameter of the first and the second signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.