Abstract
In this paper the feedback loop's impairments using radio-frequency (RF) analog-to-digital converters (ADCs) will be studied as a way to improve the digital predistortion (DPD) performance. Specifically, a compensation model for an RF ADC operating in under-sampling regime will be extracted, and applied in a DPD scenario. Significant improvements in the DPD performance will be presented and evaluated in terms of Adjacent Channel Power Ratio (ACPR) and Error Vector Magnitude (EVM).
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