A simple way to deal with the distortion of the WCDMA power amplifiers has been proposed.The predistortion linearizer allows adjustment of the AM-AM and AM-PM curves to compensate the power amplifier nonlinearities.These characteristics are provided by a nonlinearity of the diode.By applying this predistortion linearizer to a WCDMA power amplifier
the ACPR can be improved by(5 dB.)
关键词
线性功放预失真二极管幅度-幅度转换幅度-相位转换邻道功率泄漏比
Keywords
linear booster amplifierpredistortiondiodeAM-AM transferAM-PM transferACPR