Temperature compensated bias for AM/PM improvement
US7689182B1 · kind B1 · utility
50Cited by
83References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jun 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for maintaining a consistent operating condition of a power amplifier power amplifier across a range of operating temperatures. The power amplifier is provided with an input bias voltage (Vbias) that adjusts with temperature to compensate for the temperature dependent change of the power amplifier's base-emitter voltage drop Vbe. This maintains a consistent operating condition in the power amplifier, which reduces temperature-dependent changes in the amplifier's gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.