LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "flat top" as a keyword



Wideband filtering antenna design inspired by synthesis of flat‐top broadside gain curve

Sign Up to like & get
recommendations! Published in 2024 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.70008

Abstract: A common design solution of wideband filtering antennas inspired by the synthesis of a flat‐top gain curve is proposed by using mutual coupling effects. The realization of a frequency‐varied flat‐top gain curve based on specially… read more here.

Keywords: flat top; wideband filtering; gain; gain curve ... See more keywords

Flat top coverage pattern maintaining via boundary subarray elements thinning

Sign Up to like & get
recommendations! Published in 2024 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.70014

Abstract: This paper aims to study the effect of eliminating some elements from the original planar array (OPA) to generate a useful flat‐top coverage pattern (FTCP) using a genetic algorithm. The study involves dividing the fully… read more here.

Keywords: flat top; coverage pattern; top coverage; subarray ... See more keywords
Photo by creativejunkie from unsplash

Developing very strong texture in a nickel-based superalloy by selective laser melting with an ultra-high power and flat-top laser beam

Sign Up to like & get
recommendations! Published in 2020 at "Materials Characterization"

DOI: 10.1016/j.matchar.2020.110372

Abstract: Abstract Selective laser melting (SLM) is an important metal additive manufacturing method for manufacturing functional parts with high precision. However, the effective control of texture is very challenging for SLM, due to the use of… read more here.

Keywords: laser; flat top; ultra high; texture ... See more keywords

Experimental study: Underwater propagation of polarized flat top partially coherent laser beams with a varying degree of spatial coherence

Sign Up to like & get
recommendations! Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2018.04.014

Abstract: Abstract We report on experiments where spatially partially coherent laser beams with flat top intensity profiles were propagated underwater. Two scenarios were explored: still water and mechanically moved entrained salt scatterers. Gaussian, fully spatially coherent… read more here.

Keywords: flat top; laser beams; spatial coherence; coherent laser ... See more keywords

Analytical compensation of harmonics caused by 60° flat‐top modulation

Sign Up to like & get
recommendations! Published in 2019 at "IET Power Electronics"

DOI: 10.1049/iet-pel.2018.5855

Abstract: The 60° Flat-Top PWM modulation method (also called DPWM1, two-phase, or 60° bus-clamp) is widely used by the industry to reduce switching losses in three-phase inverters by connecting one of the three-phase legs to the… read more here.

Keywords: flat top; harmonics; top modulation; analytical compensation ... See more keywords
Photo from academic.microsoft.com

Stable flat-top solitons and peakons in the PT-symmetric δ-signum potentials and nonlinear media.

Sign Up to like & get
recommendations! Published in 2019 at "Chaos"

DOI: 10.1063/1.5100294

Abstract: We discover that the physically interesting PT-symmetric Dirac delta-function potentials can not only make sure that the non-Hermitian Hamiltonians admit fully-real linear spectra but also support stable peakons (nonlinear modes) in the Kerr nonlinear Schrödinger… read more here.

Keywords: flat top; symmetric signum; stable flat; top solitons ... See more keywords
Photo from wikipedia

Optimized inter-element arc spacing and ring radius in the synthesis of phase-only reconfigurable concentric circular array antenna using various evolutionary algorithms

Sign Up to like & get
recommendations! Published in 2020 at "Electromagnetics"

DOI: 10.1080/02726343.2019.1710683

Abstract: ABSTRACT This paper presents a method based on the Moth Flame optimization evolutionary algorithm for the synthesis of Flat-top/pencil beam pair of dual beam reconfigurable concentric circular antenna arrays. This beam pair is generated with… read more here.

Keywords: reconfigurable concentric; optimized inter; inter element; flat top ... See more keywords
Photo from wikipedia

Terahertz flat-top broadband defect modes generated in periodically undulated waveguides

Sign Up to like & get
recommendations! Published in 2021 at "Physica Scripta"

DOI: 10.1088/1402-4896/abeeae

Abstract: We propose a tunable flat-top broadband defect mode in the terahertz (THz) frequency range by inserting multiple defects into a periodic waveguide with undulated tube walls. When introducing a defect into periodic structures, we can… read more here.

Keywords: flat top; broadband defect; defect mode; defect ... See more keywords

Weyl semimetal assisted nonreciprocal modification of Flat-top optical pulses via defective photonic band-gap structures

Sign Up to like & get
recommendations! Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad1ad7

Abstract: We study the non-reciprocal modification of flat-top optical pulses via a one-dimensional photonic band-gap structure with Weyl semimetal-based defect layers due to their wide range of applications, such as high-speed communication, nonlinear optical switching, and… read more here.

Keywords: optical pulses; flat top; photonic band; pulses via ... See more keywords

Performance optimization of a SERF atomic magnetometer based on flat-top light beam

Sign Up to like & get
recommendations! Published in 2024 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ad401b

Abstract: We explore the impact of pumping beams with different transverse intensity profiles on the performance of the spin-exchange relaxation-free (SERF) atomic magnetometers (AMs). We conduct experiments comparing the traditional Gaussian optically-pumped AM with that utilizing… read more here.

Keywords: flat top; performance optimization; performance; serf atomic ... See more keywords

Two-color flat-top solitons in microresonator-based optical parametric oscillators

Sign Up to like & get
recommendations! Published in 2020 at "Physical Review A"

DOI: 10.1103/physreva.102.013518

Abstract: We studied numerically the generation of the two-color flat-top solitonic pulses, platicons, in the microresonator-based doubly resonant optical parametric oscillator. We revealed that if the signs of the group velocity dispersion (GVD) coefficients at interacting… read more here.

Keywords: flat top; frequency; two color; optical parametric ... See more keywords