Gain and phase error-free LINC transmitter

Xuejun Zhang, L.E. Larson
2000 IEEE Transactions on Vehicular Technology  
This paper presents a new correction technique for linear amplification with nonlinear components transmitters. During the transmit mode, the algorithm modulates and filters the baseband signal as a normal signal component separator, while during the correction mode, by use of a downconversion mixer, the gain and phase imbalance are measured and compensated by introducing a correction. This system is free of adjacent channel interference during the correction period. Analytical results and
more » ... ations demonstrate that this system is sufficient to suppress the out-of-band spectrum for mobile communications. Index Terms-Amplifier linearization, linear amplification with nonlinear components (LINCs), mobile communications, power amplifier.
doi:10.1109/25.892600 fatcat:gxsrp6ap5zfmzgqtslf5ckfzfu