Computer model development for a verified computational experiment to restore the parameters of bodies with arbitrary shape and dielectric properties
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Computer model development for a verified computational experiment to restore the parameters of bodies with arbitrary shape and dielectric properties
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| Автор |
Zeyde, K. M.
Milochkin, I. B. |
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| Тематика |
CAD
COMPUTATIONAL EXPERIMENT ELECTROPHYSICAL PARAMETERS INVERSE PROBLEM VIRTUAL MODEL WAVEGUIDE MEASUREMENTS |
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| Описание |
The creation of a virtual laboratory stand that allows one to obtain reliable characteristics that can be proven as actual, taking into account errors and noises (which is the main distinguishing feature of a computational experiment from model studies) is one of the main problems of this work. It considers the following task: there is a rectangular waveguide in the single operating mode, on the wide wall of which a technological hole is cut, through which a sample for research is placed into the cavity of the transmission line. The recovery algorithm is as follows: the laboratory measures the network parameters (S11 and/or S21) in the transmission line with the sample. In the computer model of the laboratory stand, the sample geometry is reconstructed and an iterative process of optimization (or sweeping) of the electrophysical parameters is started, the mask of this process is the experimental data, and the stop criterion is the interpretive estimate of proximity (or residual). It is important to note that the developed computer model, along with its apparent simplicity, is initially ill-conditioned. To set up a computational experiment, the Comsol modeling environment is used. The results of the computational experiment with a good degree of accuracy coincided with the results of laboratory studies. Thus, experimental verification was carried out for several significant components, both the computer model in particular and the algorithm for restoring the target parameters in general. It is important to note that the computer model developed and described in this work may be effectively used for a computational experiment to restore the full dielectric parameters of a complex geometry target. Weak bianisotropy effects can also be detected, including chirality, gyrotropy, and material nonreciprocity. The resulting model is, by definition, incomplete, but its completeness is the highest of the considered options, while at the same time, the resulting model is well conditioned. Particular attention in this work is paid to the modeling of a coaxial-waveguide transition, it is shown that the use of a discrete-element approach is preferable to the direct modeling of the geometry of a microwave device. © 2023 Kirill M. Zeyde, Ilya B. Milochkin.
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| Дата |
2024-04-05T16:38:53Z
2024-04-05T16:38:53Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Zeyde, KM & Milochkin, IB 2023, 'Создание компьютерной модели для проведения верифицированного вычислительного эксперимента по восстановлению электрофизических параметров материалов произвольных форм и диэлектрических свойств', Computer Research and Modeling, Том. 15, № 6, стр. 1555-1571. https://doi.org/10.20537/2076-7633-2023-15-6-1555-1571
Zeyde, K. M., & Milochkin, I. B. (2023). Создание компьютерной модели для проведения верифицированного вычислительного эксперимента по восстановлению электрофизических параметров материалов произвольных форм и диэлектрических свойств. Computer Research and Modeling, 15(6), 1555-1571. https://doi.org/10.20537/2076-7633-2023-15-6-1555-1571 2076-7633 Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85181680426&doi=10.20537%2f2076-7633-2023-15-6-1555-1571&partnerID=40&md5=232bc7ed086d28e256297c6bc11ad8fb http://crm.ics.org.ru/uploads/crmissues/crm_2023_6/37_zeyde.pdf http://elar.urfu.ru/handle/10995/131105 59093338 10.20537/2076-7633-2023-15-6-1555-1571 85181680426 |
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| Язык |
ru
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by-nd https://creativecommons.org/licenses/by-nd/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Institute of Computer Science Izhevsk
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| Источник |
Computer Research and Modeling
Computer Research and Modeling |
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