Aliasing-free Digital Pulse-width Modulation for Burst-mode RF Transmitters
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Burst-mode operation of power amplifiers (PAs) is a promising concept towards higher power efficiency in radio frequency (RF) transmitters. Such transmitters use pulse-width modulation (PWM) to create the driving signal for the PA, and a reconstruction filter after amplification to obtain the transmission signal. However, conventional digital pulse-width modulated signals contain a large amount of distortion that cannot be removed by the reconstruction filter in a satisfactory manner.
K. Hausmair, S. Chi, P. Singerl and C. Vogel, "Aliasing-Free Digital Pulse-Width Modulation for Burst-Mode RF Transmitters," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 60, no. 2, pp. 415-427, Feb. 2013, doi: 10.1109/TCSI.2012.2215776.