Results 141 to 150 of about 103,541 (257)

Doherty power amplifier

open access: yes, 2013
In the design of radio frequency (RF) power amplifier, linearity and efficiency are two essential metrics to be taken into considerations. Typically a RF power amplifier is the most power consumpition block in a communication system.
Ding, Wei
core  

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

open access: yesAdvanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu   +13 more
wiley   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

Design And Analysis of A Power Efficient Cascode-Compensated Amplifier

open access: yes
In the paper, we present the design focused analysis of a power efficient cascode-compensated amplifier. The analysis, presented here, is much more intuitive than the reported work so far. Based on this analysis, an amplifier in UMC 0.18 µm technology is
Farine, Pierre Andre   +2 more
core  

Ultra-Wideband Power Amplifier Design Strategy for 5G Sub-6-GHz Applications. [PDF]

open access: yesMicromachines (Basel), 2022
Moreno Rubio JJ   +2 more
europepmc   +1 more source

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