A method and apparatus for linear amplification of a modulated carrier signal or multi-carrier signal is disclosed. The linearity of the amplifier is improved by employing dynamic load line adjustments. A second current source coupled to the amplifier output load is turned on just before the amplifier reaches a nonlinear regime and reduces the effective load to prevent the amplifier allowing sufficient power to reach the nonlinear regime near saturation. The technique is particularly advantageous for amplification of a signal with large peak to average ratio.
申请公布号
WO2004102788(A3)
申请公布日期
2005.04.21
申请号
WO2004US13889
申请日期
2004.05.04
申请人
POWERWAVE TECHNOLOGIES, INC.;KHANIFAR, AHMAD;MASLENNIKOV, NIKOLAI