Autor: Urbanavičius, V. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of Charge Distribution on Rectangular Microstrip Structures
Autorzy:: Metlevskis, E.
Urbanavicius, V.
Powiązania:: https://bibliotekanauki.pl/articles/1505225.pdf
Data publikacji:: 2011-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 84.40.Az
84.40.Lj
41.20.Cv
Opis:: Rectangular microstrip structures are widely used in various microwave devices. Using the method of moments and principle of partial images, various techniques are developed to determine charge distribution in 2D models of microstrip structures (their cross-section). In this paper, a technique for calculating surface charge distribution and total capacitance of complex 3D rectangular microstrip structures is proposed using the mentioned method and principle. To demonstrate feasibility of the proposed technique, five rectangular microstrip structures were investigated. Obtained results are compared with the data published by other researchers. Total error is typically in 6-12% range.
Źródło:: Acta Physica Polonica A; 2011, 119, 4; 503-508
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Delay Systems Synthesis using Multi-Layer Perceptron Network
Autorzy:: Plonis, D.
Katkevičius, A.
Urbanavičius, V.
Miniotas, D.
Serackis, A.
Gurskas, A.
Powiązania:: https://bibliotekanauki.pl/articles/1030785.pdf
Data publikacji:: 2018-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: neural networks
delay systems
time consumption
iterative calculations
Opis:: The aim of this paper is to accelerate development and investigation of the delay systems. The computational time for investigation of particular design of delay system may take from several minutes up to several days. To achieve the required constructional parameters of the system, the iterative calculations usually should be repeated many times. In this paper, an artificial neural network is proposed to be used as the universal approximator for solving mathematical problems of delay system investigation instead of usual analytical and numerical techniques. The application of a multi-layer perceptron is proposed for approximation of solution space with discrete estimates, which were initially received by application of numerical techniques. Different structures of the multi-layer perceptron were tested for approximation. The difference between delay systems synthesis, which was estimated using numerical techniques and trained multi-layer perceptron did not exceed 5% for any of the six design parameter values. The execution time for estimating single delay system was reduced from 240 s to 20 ms. Such fast estimation of design parameters enables performing delay system analysis and design in real time, preserving time for structure visualization in 3D or virtual reality environment.
Źródło:: Acta Physica Polonica A; 2018, 133, 5; 1281-1286
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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