This paper presents a modified Doherty configuration with extended bandwidth. The narrow
band feature of the conventional Doherty amplifier is discussed in the view of the broadband …

This paper presents a wideband 2× 13-bit in-phase/quadrature-phase (I/Q) RF digital-to-
analog converter-based all-digital modulator realized in 65-nm CMOS. The isolation …

A 30.1-dBm quadrature transmitter is implemented based on Class-G IQ-cell-shared
switched-capacitor power amplifier (SCPA) and voltage mismatch compensation techniques …

This paper presents a highly linear wideband Mixing-DAC architecture. A current-steering
DAC core and a mixer are co-integrated at a unit current-cell level. A 1 bit DAC output stage …

A 15-bit quadrature digital power amplifier (DPA) is presented for wide efficiency
enhancement coverage on the IQ complex plane and high dynamic power range. Complex …

A quadrature digital power amplifier (PA) with hybrid Doherty and impedance boosting
(HDIB) technique is presented for deep power back-off (PBO) efficiency enhancement in the …

This article proposes an interleaving switched-capacitor RF digital-to-analog converter
(RFDAC) using an edge combiner within the output stage to implicitly triple its effective clock …

A major drawback of digital transmitters (DTX) is the absence of a reconstruction filter after
digital-to-analog conversion which causes the baseband quantization noise to get …

A 30.0-dBm polar digital power amplifier (PA) is implemented based on a switched-capacitor
PA (SCPA) and multiple efficiency-enhancement techniques, such as Class-G, Doherty, and …

The RF performance of current-scaling digital transmitters (DTX) with polar, unsigned
Cartesian, signed Cartesian, and multiphase architectures have been compared regarding …