Filters








2,160 Hits in 3.2 sec

Optimization of a Microwave Amplifier Using Neural Performance Data Sheets with Genetic Algorithms [chapter]

Filiz Güneş, Yavuz Cengiz
2003 Lecture Notes in Computer Science  
Inputting of these characterization parameters into the performance characterization of the device results in the triplet of gain G T , noise F, and input VSWR V i and its source (Z S ) and load ( Z L  ...  In order to obtain these data sheets the ANN model of the active device is utilized to approximate the small-signal [S] and noise [N] parameter functions in the operation domain.  ...  of the active device, the genetic algorithms with binary (BGA) and decimal (CPGA) coded numbers are used, whose main flow diagram is given in the Fig. 4 .  ... 
doi:10.1007/3-540-44989-2_75 fatcat:prxptmnipjcsfhokevz63nnou4

Inverse Problem Solution in Landmines Detection Based on Active Thermography

B. Szymanik
2014 Radioengineering  
In this paper we present the optimization based method of solving inverse problem for microwave heating.  ...  Widely used non-metallic landmines are undetectable using metal detector. Therefore, there is an urging need to improve methods of detecting such objects.  ...  Again the genetic algorithm using the population of 10 individuals was used. The generations number for GA was set to 10.  ... 
doaj:87fd32f8a55d49789e7f34bbd70baa0e fatcat:7o5u52zrovavzlhq4jdls4cr44

Design of a Front– End Amplifier for the Maximum Power Delivery and Required Noise by HBMO with Support Vector Microstrip Model

F. Guneş, S. Demirel, P. Mahouti
2014 Radioengineering  
Honey Bee Mating Optimization (HBMO) is a recent swarm-based optimization algorithm to solve highly nonlinear problems, whose based approach combines the powers of simulated annealing, genetic algorithms  ...  F(f)=1dB within the 5-12 GHz using the T- type of microstrip matching circuits.  ...  His current research interests are among of microwave circuits especially optimization of microwave circuits, broadband matching circuits, device modeling, computer-aided circuit design, microwave amplifiers  ... 
doaj:47bcd6c87b0c431fbf71b827f367721f fatcat:3sszqj3rlbe4jlmlg7jkpkpazy

High fidelity readout of a transmon qubit using a superconducting low-inductance undulatory galvanometer microwave amplifier

Yanbing Liu, Srikanth J Srinivasan, D Hover, Shaojiang Zhu, R McDermott, A A Houck
2014 New Journal of Physics  
An optimal cavity drive pulse is chosen using a genetic search algorithm, leading to a maximum combined readout and preparation fidelity of 91.9% with a measurement time of Tmeas = 200ns.  ...  Using post-selection to remove preparation errors caused by heating, we realize a combined preparation and readout fidelity of 94.3%.  ...  In addition, dynamical optimization of the readout pulse using a genetic algorithm is demonstrated for our system.  ... 
doi:10.1088/1367-2630/16/11/113008 fatcat:nixeyg53nbcnbkajm4ehpxvxbq

Pareto Optimal Characterization of a Microwave Transistor

Filiz Gunes, Ahmet Uluslu, Peyman Mahouti
2020 IEEE Access  
(V DS , I DS , f ) domain without any need of expert knowledge of microwave device.  ...  Herein, noise, gain and port mismatchings of a microwave small-signal transistor are expressed as all the set of acceptable Pareto optimal solutions and trade-off relations within the device operation  ...  His main research areas are analytical and numerical modeling of microwave devices, optimization techniques for microwave stages, and application of artificial intelligence-based algorithms.  ... 
doi:10.1109/access.2020.2978415 fatcat:agtfuilntjgh3fd7x6fdgbgcva

Particle swarm intelligence applied to determination of the feasible design target for a low-noise amplifier

Filiz Güneş, Ufuk Özkaya, Salih Demirel
2009 Microwave and optical technology letters (Print)  
CNR is obviously a better estimate for the channel selection but the two are equivalent if the receiver noise is white, which holds true in most cases.  ...  This is due to the BFSK immunity to nonlinear interference as well as to the fact that the channel frequencies occupied less than octave so the second order distortions fell outside the useful frequency  ...  As an evolutionary algorithm, the PSO algorithm is similar to GA, since it works with population of individuals randomly initialized and calculates fitness computation after each step, updates of the population  ... 
doi:10.1002/mop.24276 fatcat:74xgmk7rpjhshah35fbjlndmrm

A COMPACT SWITCHED-BEAM PLANAR ANTENNA ARRAY FOR WIRELESS SENSORS OPERATING AT WI-FI BAND

Massimo Donelli, Toshifumi Moriyama, Mohammedhusen Manekiya
2018 Progress In Electromagnetics Research C  
The obtained antenna feeding network was tuned and optimized by using suitable unsupervised techniques to obtain a compact and efficient structure.  ...  In this work, the design of a switched beam antenna array based on an optimized Butler matrix feeding network was done with a compact microstrip structure and a microchip antennas working at 2.45 GHz.  ...  With respect to other evolutionary algorithms such as genetic algorithms (GAs) and different evolution (DE), the PSO shows indisputable advantages.  ... 
doi:10.2528/pierc18012004 fatcat:7ycrly7aezbynlv3ik5kb56cia

DESIGN OF AN ULTRA-WIDEBAND, LOW-NOISE AMPLIFIER USING A SINGLE TRANSISTOR: A TYPICAL APPLICATION EXAMPLE

Salih Demirel, Filiz Gunes, Ufuk Ozkaya
2009 Progress in Electromagnetics Research B  
Furthermore the performances of the synthesized amplifiers are compared using an analysis programme in MATLAB code and a microwave system simulator and verified to agree with each other.  ...  For this purpose, the compatible (Noise F , Input VSWR V i , Gain G T ) triplets and their (Z S , Z L ) terminations of a microwave transistor are exploited for the feasible design target space with the  ...  In fact, nowadays evolutionary optimization algorithms have applied a wide range of electromagnetic problems, such as genetic optimization of the wideband multimodal square horns for discrete lenses [  ... 
doi:10.2528/pierb09062302 fatcat:szfeeob2fncyheaghoo56jrooe

Genetic-algorithm optimization of dipole equivalent-circuit models

B. R. Long, P. L. Werner, D. H. Werner
2000 Microwave and optical technology letters (Print)  
Moreover, an input-equivalent noise current of 12.3 ' pAr Hz in the 100 MHz᎐7.5 GHz band has been evaluated by simulation, using the foundry library noise models for active and passive devices.  ...  The converter provides 6 dB extra gain with respect to a simple differential pair, and allows us to design transimpedance amplifiers featuring improved performance in terms of conversion gain, input impedance  ...  Two broadband equi¨alent-circuit models with component¨alues are optimized by use of the genetic algorithm.  ... 
doi:10.1002/1098-2760(20001120)27:4<259::aid-mop12>3.0.co;2-n fatcat:qz2imnmm55dofpgra552ld7hn4

WECONF 2020 Table of Contents

2020 2020 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF)  
SYNTHESIS OF PARAMETERS OF A SYSTEM CONTROL OPERATOR WITH DISTRIBUTED PARAMETERS Skobtsov Yu.A. GENETIC TEST GENERATION FOR SINGLE AND MULTIPLE CROSSTALK FAULTS Sorokin A.V., Shepeta A.P.  ...  AN ALGORITHM FOR ESTIMATING THE PARAMETERS OF A QUADRATIC FM SIGNAL Morozov O.G., Gubaidullin R.R., Agliullin T.A., Sakhabutdinov A.Zh., Ivanov V.  ... 
doi:10.1109/weconf48837.2020.9131448 fatcat:22wgbmaurrhapb7m2yenbv6v5a

Surrogate Modeling of RF Circuit Blocks [chapter]

Luciano De Tommasi, Dirk Gorissen, Jeroen A. Croon, Tom Dhaene
2010 Mathematics in Industry  
Literature has already demonstrated the feasibility of accurate surrogate models for single radio frequency (RF) and microwave devices. Within the European Marie Curie project O-MOORE-NICE!  ...  Surrogate models are a cost-effective replacement for expensive computer simulations in design space exploration.  ...  This work was supported by the European Commission through the Marie Curie Actions of its Sixth Program under the contract number MTKI-CT-2006-042477. The authors thank Dr.  ... 
doi:10.1007/978-3-642-12110-4_69 fatcat:73uwygkzyrgclpqghs7pvd27fu

Leveraging AI in Photonics and Beyond

Gandhi Alagappan, Jun Rong Ong, Zaifeng Yang, Thomas Yong Long Ang, Weijiang Zhao, Yang Jiang, Wenzu Zhang, Ching Eng Png
2022 Photonics  
The studies in computational electromagnetics, the design of microwave devices, as well as their various applications greatly benefit from AI.  ...  Photonics benefit a great deal from AI, and AI, in turn, benefits from photonics by carrying out AI algorithms, such as complicated deep neural networks using photonics components that use photons rather  ...  The second class of inverse methods makes use of conventional optimization techniques, such as genetic and particle swam algorithms and forward models.  ... 
doi:10.3390/photonics9020075 fatcat:pkomp66omrg6hc7ydm7byetjua

ANALYSIS OF INTERACTION BETWEEN A CRYSTALLOGRAPHICALLY UNIAXIAL FERRITE RESONATOR AND A HALL-EFFECT TRANSDUCER

Marina Y. Koledintseva, Alexander A. Kitaitsev
2007 Electromagnetic Waves  
Reconstruction of dielectric material properties for dispersive substrates using a genetic algorithm", IEEE Trans. Electromagn. Compat. . 4. M.Y. Koledintseva, V.V. Bodrov, I.V. Sourkova, M.M.  ...  Sourkov, "Unified spectral technique application for study of radiator behavior near planar layered composites"  ...  Rozanov, and J.L.Drewniak, "Reconstruction of the parameters of Debye and Lorentzian dispersive media using a genetic algorithm", Proc. Int. IEEE Electromag. Compat.  ... 
doi:10.2528/pier07032703 fatcat:nre2cm5vhjbxhk7u5y6olh6jjm

MICROPROCESSOR BOARDS: Compact Markov Models for Random Test Length Calculation [chapter]

Z. Abazi, P. Thevenod-Fosse
1987 Fehlertolerierende Rechensysteme / Fault-Tolerant Computing Systems  
Genetic Algorithms and Evolutionary Computing : Optimization Examples. Fuzzy Systems : Fundamentals; Fuzzy Control; Hybrid Systems.  ...  Properties of GaAs. Electron beam and X-ray lithography.Measurement of S-parameters of Active Devices. On wafer S-parameters of Active Devices.  ...  Co-ordination of FACTS devices with HVDC links. The FACTS optimisation problem Transient and dynamic stability enhancement using FACTS components.  ... 
doi:10.1007/978-3-642-45628-2_9 dblp:conf/icftcs/AbaziT87 fatcat:s36p24sy4ngp5d5ma2jdlj6qvm

Simulation and Automated Modeling of Microwave Circuits: State-of-the-Art and Emerging Trends

Qi-Jun Zhang, Emad Gad, Behzad Nouri, Weicong Na, Michel Nakhla
2021 IEEE Journal of Microwaves  
Coupled with the advent of more powerful computers and algorithms, microwave design automations are solving much more complex problems in much shorter time than previously imaginable.  ...  Newer algorithms are being developed to address the speed, accuracy and robustness of design algorithms.  ...  A genetic algorithm can be used to determine the topology of neural network mapping structure and the empirical model [18] .  ... 
doi:10.1109/jmw.2020.3033780 fatcat:dqqb3uecijexlmxf2ihdkduqsm
« Previous Showing results 1 — 15 out of 2,160 results