Results 41 to 50 of about 339,663 (292)

Third-order Intermodulation Reduction in Mobile Power Amplifiers by the First Stage Bias Control [PDF]

open access: yes, 2012
In this paper, the third order intermodulation distortion (IMD3) of three-stage power amplifier (PA) is analyzed using the Volterra series. The analysis explains how the total IMD3 of the three-stage power amplifier can be reduced by the first-stage bias
Jung, J. H., Kwak, C. H., Lee, J. S.
core   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Bifurcation analysis of stabilization circuits in an L-band LDMOS 60-W power amplifier [PDF]

open access: yes, 2005
n this letter, the global stability analysis of an L-band push-pull power amplifier is presented. The analysis is carried out for the amplifier operating in different modes, such as Class AB, Class B, and Class E/F, considering variations in the bias ...
Rutledge, David B.   +2 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

GaN Based HEMT Power Amplifier Design with 44.5dBm Output Power Operating at 5-7GHz

open access: yesMehran University Research Journal of Engineering and Technology, 2021
The next-generation wireless communication systems including satellite, radar, and mobile communications need application-specific power amplifiers that can operate at very high frequencies and high power with the overall minimum power consumption from ...
Syed Mudassir Hussain   +4 more
doaj   +1 more source

Integrated Al2O3:Er3+ zero-loss optical amplifier and power splitter with 40 nm bandwidth [PDF]

open access: yes, 2010
A combined planar lossless optical amplifier and 1x2 power splitter device has been realized in Al2O3:Er3+ on silicon. Net internal gain was measured over a wavelength range of 40 nm across the complete telecom -band (1525–1565 nm).
Agazzi, Laura   +6 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Design Of A Doherty Power Amplifier For GSM Systems

open access: yesTikrit Journal of Engineering Sciences, 2013
This paper presents the design and analysis of Doherty power amplifier. The Doherty amplifier is used in  a base station for mobile system because of its high efficiency.
Saad Wasmi Osman
doaj  

New microelectronic power amplifier [PDF]

open access: yes, 1968
Integrated push-pull power amplifier fabricated on a chip of silicon has interdigitated power transistors and is hermetically encapsulated in a beryllia flat package.
New, T. C.
core   +1 more source

Increasing the talk-time of mobile radios with efficient linear transmitter architectures [PDF]

open access: yes, 2000
In order to meet the linearity specification of standards such as GSM EDGE and TETRA the power amplifier (PA) linearisation methods in common usage today result in low DC to RF efficiency (e.g. Cartesian loop and adaptive predistortion).
Beach, MA   +3 more
core   +2 more sources

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