This article presents a wideband, energy-efficient digital transmitter (DTX) suitable for multi-
mode/multi-band wireless communication applications. It features various operation modes …

This article presents a wideband-bit direct-digital RF modulator (DDRM) operating in a 0.5-to-
3-GHz band for 5G transmitters. The proposed digital Cartesian modulator features an …

This paper presents a wideband linear direct-digital RF modulator (DDRM) in 40-nm CMOS
technology. An innovative I/Q-interleaving RF digital-to-analog converter (DAC) is proposed …

In this letter, we present a digital transmitter for dual-band narrowband-Internet-of-Things
(NB-IoT) applications achieving a large dynamic range with high-speed cartesian RF-DACs …

This article describes the circuit implementation and measurement results of a 4-bit radio
frequency digital-to-analog converter (RFDAC)-based frequency-modulated continuous …

This article describes a new digital transmitter architecture that automatically corrects static
and dynamic nonlinearities with no need for digital predistortion or adaptation. We draw …

A wideband, frequency agile, radio frequency digital-to-analog converter (RF-DAC) based
phase modulator includes first, second, and third RF-DACs, each configured to upconvert an …

In this paper, an overview of different RF transmitter architectures, based on the RF-DAC
implementation is given. The evolution of different types of architectures is displayed with the …

The stringent requirements from 3rd Generation Partnership Project (3GPP) standards pose
a big challenge for the design of cellular radio frequency transmitters. Architectural …

Packaged integrated low-pass quasi-load insensitive (QLI) class-E matching is proposed for
the realization of energy-efficient wideband Doherty and outphasing transmitters. In view of …