Output networks in combination with LINC technique
US7902921B2 · kind B2 · utility
1Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2010 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Aug 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/543
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to balanced power amplifier network in combination with outphasing techniques such as Chireix. The object of the present invention is to provide a solution to the problem to combine balanced amplifiers like the current mode class D (CMCD) or class E/F with a LINC network. The main problem is that some power amplifiers have balanced output and the LINC network is single-ended so that a high power low loss transformer that works at several impedance levels is needed, which is hard to realize at cellular frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.