Results 81 to 90 of about 5,748,011 (307)

Wideband LTE power amplifier with integrated novel analog pre-distorter linearizer for mobile wireless communications.

open access: yesPLoS ONE, 2014
For the first time, a new circuit to extend the linear operation bandwidth of a LTE (Long Term Evolution) power amplifier, while delivering a high efficiency is implemented in less than 1 mm2 chip area. The 950 µm × 900 µm monolithic microwave integrated
Eswaran Uthirajoo   +3 more
doaj   +1 more source

Design of class-E Power Amplifier (PA) with minimum harmonious termination for Cellular phones [PDF]

open access: yesProceedings of 2nd International Multi-Disciplinary Conference Theme: Integrated Sciences and Technologies, IMDC-IST 2021, 7-9 September 2021, Sakarya, Turkey, 2022
Zahraa saed, Khalid Khaleel
openaire   +1 more source

5.2 GHz variable-gain amplifier and power amplifier driver for WLAN IEEE 802.11a transmitter front-end

open access: yes, 2009
A 5.2 GHz variable-gain amplifier (VGA) and a power amplifier (PA) driver are designed for WLAN IEEE 802.11a monolithic RFIC. The VGA and the PA driver are implemented in a 50 GHz 0.35 μm SiGe BiCMOS technology and occupy 1.12×1.25 mm~2 die area. The VGA
Zhang Xuelian   +3 more
core  

Ionomycin suppresses cancer cell growth by disrupting mitochondrial transcription

open access: yesFEBS Open Bio, EarlyView.
In this study, we identify a new function for the selective Ca2+ ionophore, ionomycin, as an inhibitor of mitochondrial transcription. Both total and nascent RNA analyses revealed that ionomycin treatment reduces the transcription of mitochondrial genes.
Lishen Wang   +10 more
wiley   +1 more source

Temperature-Characteristic Survey of a 1000-W LDMOS Power Amplifier

open access: yesIEEE Access
To investigate the temperature characteristics of a laterally double-diffused metal oxide semiconductor (LDMOS) 1000 W shortwave solid-state power amplifier (PA), a comprehensive series of tests has been conducted.
Qian Lin   +5 more
doaj   +1 more source

Effect of losses in an active device and harmonic network on the efficiency of Class F and inverse Class F power amplifiers [PDF]

open access: yes, 2012
High frequency class F and inverse class F power amplifiers obtain high efficiency of dc to ac power conversion, by reducing the overlap of voltage and current waveforms at the output of the active device, to ensure that the power dissipated in the ...
Ghassemlooy, Zabih   +5 more
core  

Accurate and noninvasive prostate cancer detection using plasma‐derived extracellular vesicle RNA

open access: yesFEBS Open Bio, EarlyView.
Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Hanping Wei, Haoran Wu, Wei Feng
wiley   +1 more source

Power amplifier for software defined radio [PDF]

open access: yes, 2009
This project investigates the characteristics of three types of Power Amplifier (PA) circuit that will use in the Software Defined Radio (SDR).
Dahlan, Samat.
core  

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

open access: yesFEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez   +6 more
wiley   +1 more source

PVT Analysis and Behavioral Modeling of Doherty and Envelope Tracking RF ULP Power Amplifiers using 65 nm CMOS Technology

open access: yesSir Syed University Research Journal of Engineering and Technology, 2023
This research encompasses both Process-Voltage-Temperature (PVT) considerations and behavioral modeling of two proposed Power Amplifier (PA) designs for wireless communication systems.
Muhammad Ovais Akhter   +2 more
doaj  

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