Results 1 to 10 of about 3,120,441 (282)

A SIMPLE METHOD FOR IMPROVING OUT-OF-BAND HIGH-FREQUENCY STABILITY OF RADIO FREQUENCY AMPLIFIERS [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. Methods for determining and ensuring the stability of radio frequency (RF) amplifiers have been progressing quite actively over the past decades. However, most of them are not convenient for practical use.
A. D. Khristenko
doaj   +1 more source

Macromodeling High-Speed Circuit Data Using Rational Krylov Fitting Method

open access: yesEnergies, 2021
This paper presents the modeling of high speed distributed networks characterized by S-parameters frequency data using the rational Krylov fitting (RKFIT) algorithm. Numerical examples illustrate the effectiveness of the method to compute stable rational
Mohamed Sahouli, Anestis Dounavis
doaj   +1 more source

Diversity characteristics of four-element ring slot-based MIMO antenna for sub-6-GHz applications

open access: yesETRI Journal, 2023
This paper proposes four-ring slot resonator-based MIMO antennas of 75 x 150 mm2 without and with CSRR structures in the sub-6-GHz range. These orthogonal-fed antennas have shown diverse characteristics with dual polarization.
Vipul Kaushal   +2 more
doaj   +1 more source

Ferrite material Characterization Using S-Parameters Data [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2017
ince many applications rely on the knowledge of the electromagnetic material properties of ferrites, such as ferrite phase shifters, this paper presents an algorithm for characterizing ferrite materials in a single frequency using a rectangular waveguide
M. Maleki   +2 more
doaj   +1 more source

Parametric optimization of cutting parameters for micro-machining of titanium Grade-12 alloy using statistical techniques

open access: yesInternational Journal of Lightweight Materials and Manufacture, 2022
The main aim of this research work is to examine the impact of machining parameters on the tool wear, machining forces and surface quality in micro-machining of light weight titanium Gr-12 alloy using statistical technique.
M.S. Kishore Kumar   +3 more
doaj   +1 more source

S-map parameters for APSIM

open access: yesMethodsX, 2022
Agroecosystem models have become an important tool for impact assessment studies, and their results are often used for management and policy decisions. Soil information is a key input for these models, yet site-specific soil property data are often not ...
Iris Vogeler   +7 more
doaj   +1 more source

Flavor dependence of the S-parameter

open access: yesPhysics Letters B, 2011
We extend the results of [arXiv:1006.0207 [hep-lat]] by computing the S-parameter at two loops in the perturbative region of the conformal window. Consistently using the expression for the location of the infra-red fixed point at the two-loop order we express the S-parameter in terms of the number of flavors, colors and matter representation.
Di Chiara, Stefano   +2 more
openaire   +4 more sources

S-Parameter-Based Defect Localization for Ultrasonic Guided Wave SHM

open access: yesAerospace, 2020
In this work, an approach for enabling miniaturized, low-voltage hardware for active structural health monitoring (SHM) based on ultrasonic guided waves is investigated.
Gift Nyikayaramba, Boris Murmann
doaj   +1 more source

ACD estimation of the S-parameter revisited [PDF]

open access: yesPhysics Letters B, 1997
The analytic continuation by duality (ACD) technique has been used to estimate the electroweak S parameter in technicolor models. In this letter, we investigate the reliability of this method by applying it to some toy models with known spectra. We find that in most instances the technique cannot be trusted to give a reliable result.
Ignjatovic, S. R.   +2 more
openaire   +3 more sources

A Generic and Efficient Globalized Kernel Mapping-Based Small-Signal Behavioral Modeling for GaN HEMT

open access: yesIEEE Access, 2020
The work reported in this article explores a novel Particle Swarm Optimization (PSO) tuned Support Vector Regression (SVR) based technique to develop the small-signal behavioral model for GaN High Electron Mobility Transistor (HEMT).
Ahmad Khusro   +4 more
doaj   +1 more source

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