Wireless transmitter and amplifier
US7489910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2006 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
There is provided with an amplifier comprising: first and second power amplifiers; a first path configured to output first and second input signals to the first and second power amplifiers; a second path configured to divide a first input signal, output one of divided signals to the first power amplifier and output the other divided signal to the second power amplifier; a first path changeover unit configured to change over the first and second paths; a third path configured to output first and second power amplified signals from the first and second power amplifiers; a fourth path configured to combines a first power amplified signal through an impedance conversion unit from the first power amplifier and a second power amplified signal from the second power amplifier at a combining point and output a combined signal; and a second path changeover unit configured to changeover the third and fourth paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.