Wireless backhaul power amplification using fourier transform matricies
US7965990B2 · kind B2 · utility
40Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2007 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/198
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus amplifies RF signals in a communication system by using a first directional coupler having at least two inputs and at least two outputs; at least two RF amplifiers, where an input of each RF amplifier is connected to a different one of the at least two outputs of the first directional coupler; and a second directional coupler having at least two inputs and at least two outputs, where each one of the at least two inputs is connected to an output of a different one of the at least two RF amplifiers. The at least two outputs of the second directional coupler are connected to at least two antennas, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.