A review of hybrid supply modulators in CMOS technologies for envelope tracking PAs

S Bhardwaj, S Moallemi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This article reviews trends, architectures, and recent developments in CMOS-based supply
modulators (SM) used for envelope-tracking power amplifiers (ET-PAs). This review details …

Improvement of AlGaN/GaN High-Electron-Mobility Transistor Radio Frequency Performance Using Ohmic Etching Patterns for Ka-Band Applications

MW Lee, CW Chuang, F Gamiz, EY Chang, YC Lin - Micromachines, 2023 - mdpi.com
In this paper, AlGaN/GaN high-electron-mobility transistors (HEMTs) with ohmic etching
patterns (OEPs)“fabricated to improve device radio frequency (RF) performance for Ka-band …

Adaptive power control using current adjustment for watt-level power amplifiers in CMOS SOI

S Moallemi, P Mehr, K Grout… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This brief demonstrates the effectiveness of utilizing a 4-bit current steering digital to analog
converter (DAC) as an adaptive power controller to adjust the dc quiescent current of a …

A linearity enhancement technique for envelope tracked cascode power amplifiers

S Bhardwaj, S Moallemi… - 2020 IEEE Texas …, 2020 - ieeexplore.ieee.org
This work presents a linearity enhancement technique for envelope tracked linear power
amplifiers (ET-PAs). To enhance linearity, the proposed technique dynamically biases the …

[图书][B] CMOS integrated power amplifiers for RF reconfigurable and digital transmitters

S Moallemi - 2019 - search.proquest.com
This dissertation focuses on three different efficiency enhancement methods that are
applicable to handset applications. These proposed designs are based on three critical …

High Breakdown Voltage MESFETs Integrated with SOI CMOS Technologies

T Thornton - 2019 IEEE SOI-3D-Subthreshold Microelectronics …, 2019 - ieeexplore.ieee.org
The high-voltage, high-current, and RF applications of SOI MESFETs are reviewed.
Seamless integration of the MESFETs with highly scaled CMOS technologies enables a …