Wide dynamic range amplifier with second harmonic signal cancellation
US4531098A · kind A · utility
18Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1984 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Apr 5, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/3223
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The signal to be amplified is applied to a quadrature coupler which splits the signal equally to provide two output signals in phase quadrature. The quadrature signals are amplified equally, which generates a second harmonic in each of the signals 180 degrees out of phase. The amplified signals are combined in an in-phase power divider to provide a single amplified output signal wherein the out-of-phase second harmonic signals cancel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.