Title:
SYSTEMS AND METHODS OF RF POWER TRANSMISSION, MODULATION, AND AMPLIFICATION, INCLUDING BLENDED CONTROL EMBODIMENTS
Document Type and Number:
WIPO Patent Application WO/2010/039446
Kind Code:
A3
Abstract:
Embodiments of the present invention enable a blended control approach to generate a desired output waveform in an outphasing-based system. Embodiments of blended control according to the present invention combine outphasing with bias and/or amplitude control to yield an accurate, practical, and producible system with substantially comparable performance to that of a theoretical ideal outphasing system, but without the isolation and accuracy requirements of outphasing alone.
Inventors:
SORRELLS DAVID F (US)
RAWLINS GREGORY S (US)
RAWLINS GREGORY S (US)
Application Number:
PCT/US2009/057306
Publication Date:
June 24, 2010
Filing Date:
September 17, 2009
Export Citation:
Assignee:
PARKERVISION INC (US)
SORRELLS DAVID F (US)
RAWLINS GREGORY S (US)
SORRELLS DAVID F (US)
RAWLINS GREGORY S (US)
International Classes:
H03F3/45; H03G3/10; H04B1/04
Foreign References:
| US20080133982A1 | 2008-06-05 | |||
| US20060264190A1 | 2006-11-23 |
Other References:
WANGMYONG WOO ET AL.: "A hybrid Digital/RF Envelpoe Predistortion Linearization system for power amplifiers", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 53, no. 1, January 2005 (2005-01-01)
MI AE JANG ET AL.: "Linearity Improvement of power amplifier using Modulation of low frequency IMD signals", MICROWAVE CONFERENCE PROCEEDINGS, ASIA-PACIFIC C FEFERENCE PROCEEDINGS, 4 December 2005 (2005-12-04) - 7 December 2005 (2005-12-07)
MI AE JANG ET AL.: "Linearity Improvement of power amplifier using Modulation of low frequency IMD signals", MICROWAVE CONFERENCE PROCEEDINGS, ASIA-PACIFIC C FEFERENCE PROCEEDINGS, 4 December 2005 (2005-12-04) - 7 December 2005 (2005-12-07)
Attorney, Agent or Firm:
LEE, Michael, Q. et al. (Kessler Goldstein & Fox, P.L.L.C.,1100 New York Avenue, N.W, Washington DC, US)
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