Abdolreza Nabavi

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In this paper, a very low power and low complexity all digital impulse radio ultra wideband (IR-UWB) transmitter is presented. The pulse repeating frequency (PRF) of the transmitted signal is controlled digitally, which complies with federal commission committee (FCC) regulations. In order to control the transmitted power the amplitude of transmitted(More)
In this paper, a novel digital predistortion assisted supply modulator is presented. The proposed modulator is suitable for envelope tracking power amplifiers. In this topology, a digitally controlled linear power amplifier is used to compensate the switching noise ripples of the switching modulator. The proposed structure is evaluated with a 0.18 mm CMOS(More)