Design and Implementation of a Harmonic Pre-distortion Method
As the bandwidth of transmitting system becomes wider and wider,the harmonics caused by the nonlinear characteristics of power amplifier often fall within the working bandwidth range,which brings great challenges to the system efficiency and electromagnetic compatibility.In order to improve the harmonic suppression of power amplifier,a method of harmonic pre-distortion is de-signed,which realizes in-band harmonic suppression on field programmable gate array(FPGA)and computer software platform,and out-of-band harmonic signal is suppressed by high-power filter.The experimental results show that this method can restrain harmonics obviously.
wideband power amplifierdigital pre-distortionharmonic suppression
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