Adjustable reflective predistortion circuit
US4588958A · kind A · utility
17Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Mar 29, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G7/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A predistortion circuit of the reflective type uses antiparallel-connected diodes for the desired amplitude and phase nonlinearity. If the signal applied to the diodes is of not of the correct magnitude, the desired nonlinearity will not be obtained. The magnitude of the signal applied to the diodes is increased or decreased as required by an impedance transforming circuit. The impedance transforming circuit is tuned for the frequencies of interest. The overall distortion is reduced by applying a direct bias to the diode pair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.