Results 11 to 20 of about 29,953,595 (347)

Gain and dispersion focusing in a high gain laser [PDF]

open access: yesApplied Optics, 1972
The transverse modes of a laser resonator containing a medium with a strong radial gain profile differ greatly from the modes of a similar resonator containing a low gain medium.
Casperson, Lee W., Yariv, Amnon
core   +5 more sources

A High-Gain Nonlinear Observer With Limited Gain Power [PDF]

open access: yesIEEE Transactions on Automatic Control, 2015
6 pages, 2 ...
ASTOLFI, DANIELE, MARCONI, LORENZO
openaire   +4 more sources

A high-gain Quantum free-electron laser: emergence & exponential gain [PDF]

open access: yesPhysical Review A, 2019
We derive an effective Dicke model in momentum space to describe collective effects in the quantum regime of a free-electron laser (FEL). The resulting exponential gain from a single passage of electrons allows the operation of a Quantum FEL in the high ...
Carmesin, C. Moritz   +4 more
core   +3 more sources

On the use of low-pass filters in high-gain observers

open access: yesSystems & control letters (Print), 2021
To address the well-known noise sensitivity problems associated with high-gain observers, we insert a low-pass filter on the measurement channel. Considering nonlinear plants in observability canonical form, we first motivate an architecture where the ...
Daniele Astolfi   +2 more
semanticscholar   +1 more source

MIMO Antenna System for Modern 5G Handheld Devices with Healthcare and High Rate Delivery

open access: yesSensors, 2021
In this work, a new prototype of the eight-element MIMO antenna system for 5G communications, internet of things, and networks has been proposed. This system is based on an H-shaped monopole antenna system that offers 200 MHz bandwidth ranges between 3.4–
Saad Hassan Kiani   +11 more
doaj   +1 more source

High Gain WAT Antenna for 38 GHz 5G Systems

open access: yesJournal of Telecommunications and Information Technology, 2023
The article presents a high gain WAT microstrip antenna designed for 5G communication systems operating in the 38 GHz band. The antenna concerned has a compact structure with dimensions of 5.16×5.05 mm.
Rafał Przesmycki, Marek Bugaj
doaj   +1 more source

Design and Experimental Verification of a General Single-Switch N-Stage Z-Network High Gain Boost Converter

open access: yesMathematics, 2022
A single-switch N-stage Z-network high-gain boost converter is proposed in this study, which can be applied in the field of chip etching for bias provision.
Xiaoyi Liu   +5 more
doaj   +1 more source

High current gain transistor laser [PDF]

open access: yesScientific Reports, 2016
AbstractA transistor laser (TL), having the structure of a transistor with multi-quantum wells near its base region, bridges the functionality gap between lasers and transistors. However, light emission is produced at the expense of current gain for all the TLs reported up to now, leading to a very low current gain.
Song Liang   +3 more
openaire   +2 more sources

A Simple Design of Polarization Reconfigurable Fabry-Perot Resonator Antenna

open access: yesIEEE Access, 2020
This paper presents a simple design of high gain Fabry-Perot (FP) antenna with polarization diversity. The proposed antenna is composed of a reconfigurable microstrip patch, a partially reflective surface, and a planar metallic reflector. By electrically
Huy Hung Tran, Hyun Chang Park
doaj   +1 more source

Non-Isolated Interleaved Hybrid Boost Converter for Renewable Energy Applications

open access: yesEnergies, 2022
DC-DC boost converters are necessary to extract power from solar panels. The output voltage from these panels is far lower than the utility voltage levels.
Girish Ganesan Ramanathan   +1 more
doaj   +1 more source

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