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This presents a one step solution to compensate for the power amplifier (PA) nonlinearities and in-phase/ quadrature (I/Q) impairments for concurrent dual-band radio frequency (RF) transmitters. This technique is proposed that compensate the in-band intermodulation (IMD) and the cross-modulation distortion (CMD) products in the presence of I/Q imbalance and DC offset imperfections simultaneously using...
This presents a one step solution to compensate for the power amplifier (PA) nonlinearities and in-phase/quadrature (I/Q) impairments for concurrent dual-band radio frequency (RF) transmitters. This technique is proposed that compensate the in-band intermodulation (IMD) and the cross-modulation distortion (CMD) products in the presence of I/Q imbalance and DC offset imperfections simultaneously using...
This paper presents a novel 2-D digital-predistortion (2-D-DPD) technique that is applicable for linearization of concurrent dual-band transmitters. This technique uses a unique way for distortion compensation and linearization of dual-band transmitters by selecting, characterizing, and applying predistortion in each band separately. Compared to conventional linearization techniques, this 2-D-DPD...
In this paper the nonlinearity of concurrent dual-band power amplifier (PA) is investigated by using modulated signals and digital multi-tone signals. The difference between ordinary inter-modulation distortion in single band power amplifier and the distortion from cross-modulation between dual bands in a concurrent dual-band PA has been verified and studied. According to AM-AM and AM-PM performances...
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