An Outphasing Architecture Based on Parallel Radio Frequency–Pulse Width Modulation Method for All-Digital Transmitter
Xu Wang,
Qiang Zhou,
Min Wang
et al.
Abstract:For the existing outphasing architectures of an all-digital transmitter (ADTx), the required sampling rate of the signal is too high, which increases the difficulty of digital radio frequency pulse width modulation (RF-PWM) processing. In this paper, we present an outphasing architecture based on the parallel RF-PWM method for an ADTx. Through polyphase interpolation, two baseband outphasing signals are divided into multiple low-rate signals to process simultaneously. The parallel outphasing signals are modula… Show more
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