Results 71 to 80 of about 128,571 (233)

Load Mismatch Compensation of Load-Modulated Power Amplifiers: A Comprehensive Review

Energies
With the diversification, acceleration, and arraying of wireless communication systems, power amplifiers (PAs) face stricter demands in terms of RF operation bandwidth, high-efficiency power range, and load mismatch compensation.
Yufeng Zang, Weimin Shi, Jinting Liu, Tian Qi, Mingyu Li   +4 more
doaj   +1 more source

Constructing Desirable Asian Americanness in the Educational Market: School Branding and Intra‐Asian Boundary Making

Anthropology &Education Quarterly, Volume 57, Issue 3, September 2026.
ABSTRACT This ethnographic study examines how market pressures shape institutional life within an Asian American charter school. The analysis shows two interrelated processes: school branding in pursuit of market desirability and intra‐Asian boundary making that this pursuit generates.
Insil Jeon
wiley   +1 more source

A 28-GHz CMOS-65 nm Dual Mode Class-J Doherty Power Amplifier With Integrated Class-G Driver and Impedance-Modulated- Quadrature-Transformer Achieving 21% Back-Off Efficiency

IEEE Access
In this paper, a CMOS Class-J Doherty power amplifier (PA) integrating a Class-G driver and an Impedance-Modulated-Quadrature-Transformer (IMQT) to enhance back-off efficiency for multimode operations is presented.
Selvakumar Mariappan, Jagadheswaran Rajendran, Norhamizah Idros, Sofiyah Sal Hamid, Asrulnizam Bin Abd Manaf, Narendra Kumar, Abdullah Alghaihab, Arokia Nathan, Binboga Siddik Yarman   +8 more
doaj   +1 more source

Digital Predistorter Design Using a Reduced Volterra Model to Linearize GaN RF Power Amplifiers [PDF]

Radioengineering, 2018
In this paper, a novel method for reducing a Simplified Volterra Series (SVS) model size is proposed for GaN RF Power Amplifier (PA) Digital Predistorter (DPD) design.
H. Rezgui, F. Rouissi, A. Ghazel
doaj  

A multi-objective optimization based doherty power amplifier and its matching network optimization method. [PDF]

PLoS One, 2023
Sun J.
europepmc   +1 more source

‘…but look how many lives would have been saved if this was available then’ Exploring the acceptability of future Human Papillomavirus self‐sampling, and the barriers and facilitators of cervical cancer screening for those with intellectual disabilities in Scotland

British Journal of Health Psychology, Volume 31, Issue 3, September 2026.
Abstract Background Cervical cancer screening attendance among women with intellectual disabilities (ID) in Scotland is approximately 30%, significantly below the general population rate of 69% and the WHO's recommended 70% target. HPV self‐sampling could provide a more accessible screening option for this underserved population.
Catherine B. White, Lesley M. McGregor
wiley   +1 more source

A Dual Load-Modulated Doherty Power Amplifier Design Method for Improving Power Back-Off Efficiency. [PDF]

Sensors (Basel), 2023
Jin Y, Dai Z, Ran X, Xu C, Li M.
europepmc   +1 more source

Seismic Characteristics of the Gas Hydrate System in the Mackenzie Trough of the Canadian Beaufort Sea, Arctic Ocean

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract We present a comprehensive seismic characterization of the gas hydrate system in the outer continental shelf of the Mackenzie Trough, Canadian Beaufort Sea, based on recently acquired multichannel seismic (MCS) data, P‐wave velocity modeling, and 3D thermal modeling. We identified high‐amplitude, reverse‐polarity Bottom‐Simulating Reflections (
Yeonjin Choi, Young Keun Jin, Michael Riedel, Jong Kuk Hong, Mathieu J. Duchesne, Sung‐Ryul Shin, Wookeen Chung, Seung‐Goo Kang   +7 more
wiley   +1 more source

Power Consumption and Reduction of High-Power Amplifier in 5G NR Downlink

IEEE Access
This article presents a method for estimating the power consumption of radio frequency (RF) power amplifiers (PAs) within the 5G new radio (NR) downlink (from the base station to user equipment), particularly in the absence of user data.
Yuki Takagi, Takashi Hirakawa, Mitsukuni Konishi, Yoshichika Ohta   +3 more
doaj   +1 more source

Vertical Hydraulic Gradients as Key Calibration Constraints in Regional Groundwater Models

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract In typical clastic sedimentary aquifer systems, interbedded coarse‐ and fine‐grained deposits impede vertical flow and promote horizontal flow. This effect, known as vertical anisotropy, is often underestimated in regional groundwater models, leading to overestimated vertical aquifer communication.
Yara M. Pasner, Graham E. Fogg, Thomas Harter, Helen E. Dahlke   +3 more
wiley   +1 more source