A 28-GHz four-channel beamforming front-end IC with dual-vector variable gain phase shifters for 64-element phased array antenna module
A 28-GHz fully differential four-channel beamforming front-end IC with variable gain phase
shifters (VGPSs) is presented, of which orthogonal phase and gain control is achieved in a …
shifters (VGPSs) is presented, of which orthogonal phase and gain control is achieved in a …
A wideband energy-efficient multi-mode CMOS digital transmitter
M Beikmirza, Y Shen, LCN de Vreede… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This article presents a wideband, energy-efficient digital transmitter (DTX) suitable for multi-
mode/multi-band wireless communication applications. It features various operation modes …
mode/multi-band wireless communication applications. It features various operation modes …
A CMOS wideband watt-level 4096-QAM digital power amplifier using reconfigurable power-combining transformer
In this article, a wideband watt-level digital power amplifier (DPA) with high efficiency and
large dynamic range is presented in CMOS technology for wireless applications. To achieve …
large dynamic range is presented in CMOS technology for wireless applications. To achieve …
A wideband four-way Doherty bits-in RF-out CMOS transmitter
M Beikmirza, Y Shen, LCN de Vreede… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
We present a wideband, 12-bit four-way Doherty Cartesian digital transmitter (DTX) featuring
an innovative 50%-LO signed interleaved up-conversion technique that enables close to …
an innovative 50%-LO signed interleaved up-conversion technique that enables close to …
A quadrature digital power amplifier with wide efficiency enhancement coverage and high dynamic power range
Y Li, Y Yin, D Zheng, F Gao, J Lin, Z Hu… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
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 …
enhancement coverage on the IQ complex plane and high dynamic power range. Complex …
Quadrature switched/floated capacitor power amplifier with reconfigurable self-coupling canceling transformer for deep back-off efficiency enhancement
This article presents a quadrature switched/floated capacitor power amplifier (SFCPA) with
deep back-off efficiency enhancement. The SFCPA is introduced to decrease the dynamic …
deep back-off efficiency enhancement. The SFCPA is introduced to decrease the dynamic …
The Efficiency and Power Utilization of Current-Scaling Digital Transmitters
DPN Mul, RJ Bootsman, M Beikmirza… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
The RF performance of current-scaling digital transmitters (DTX) with polar, unsigned
Cartesian, signed Cartesian, and multiphase architectures have been compared regarding …
Cartesian, signed Cartesian, and multiphase architectures have been compared regarding …
A self-calibration SCPA with storage capacitor array supporting 64-/256-/1024-QAM
This article presents a digital polar Doherty switched-capacitor power amplifier (SCPA)
using on-chip self-calibration technique with storage capacitor array (SCA) to compensate …
using on-chip self-calibration technique with storage capacitor array (SCA) to compensate …
Millimeter-Wave Quadrature Mixed-Mode Transmitter With Distributed Parasitic Canceling and LO Leakage Self-Suppression
In this article, a 2 9-bit millimeter-wave quadrature mixed-mode transmitter (TX) with
distributed parasitic canceling and LO leakage self-suppression is proposed. The mixed …
distributed parasitic canceling and LO leakage self-suppression is proposed. The mixed …
A Predistortion-Less Digital MIMO Transmitter With DTC-Based Quadrature Imbalance Compensation
A four-element multi-input multi-output (MIMO) switched capacitor power amplifier (SCPA) in
22-nm fully depleted silicon-on-insulator (FD-SOI) is presented as a software-defined radio …
22-nm fully depleted silicon-on-insulator (FD-SOI) is presented as a software-defined radio …