Low-power polar transmitter
US8301086B2 · kind B2 · utility
3Cited by
9References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2010 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Mar 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0491
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for providing transmit signals in polar transmitters are described. A modulation signal may be provided from a VCO to low noise and low power signal paths and selectively combined based on a desired output power level. CMOS and CML divider circuits may be used to implement the low noise and low power signal paths respectively, and logic may be provided to select desired signals from the low noise and low power signal stages based on the desired output power level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.