Doherty amplifying apparatus using a harmonic control circuit
US7663435B2 · kind B2 · utility
21Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Apr 5, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/543
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Doherty power amplifying apparatus includes a harmonic-controlled Doherty amplifier; and an input matching unit and an output matching unit for input matching and output matching the harmonic-controlled Doherty amplifier, respectively. The harmonic-controlled Doherty amplifier includes a carrier amplifier; a peaking amplifier arranged in parallel to the carrier amplifier; and a harmonic control circuit, arranged in front of the output matching unit, for controlling a harmonic component of an output of the Doherty amplifier to enable the Doherty amplifier to perform a switching or saturation operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.