KFU. Card publication. Partial Areas Method in the Problem of Diffraction of an Electromagnetic Wave by a Longitudinal Partition in an Infinite Waveguide.

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PARTIAL AREAS METHOD IN THE PROBLEM OF DIFFRACTION OF AN ELECTROMAGNETIC WAVE BY A LONGITUDINAL PARTITION IN AN INFINITE WAVEGUIDE.

Form of presentation

Articles in international journals and collections

Year of publication

2023

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Authors, employees of KFU

Abgaryan Garnik Vladimirovich, author

Bibliographic description in the original language

Abgaryan, G.V., Khaibullin, A.N. & Shipilo, A.E. Partial Areas Method in the Problem of Diffraction of an Electromagnetic Wave by a Longitudinal Partition in an Infinite Waveguide. Tech. Phys. (2023). https://doi.org/10.1134/S1063784223010012

Annotation

Tech. Phys.

Keywords

diffraction problem, partial areas method, resonance frequency

The name of the journal

Tech. Phys.

URL

https://link.springer.com/article/10.1134/S1063784223010012#citeas

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=282989&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Abgaryan Garnik Vladimirovich	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Abgaryan, G.V., Khaibullin, A.N. & Shipilo, A.E. Partial Areas Method in the Problem of Diffraction of an Electromagnetic Wave by a Longitudinal Partition in an Infinite Waveguide. Tech. Phys. (2023). https://doi.org/10.1134/S1063784223010012	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=282989&p_lang=2	ru_RU
dc.description.abstract	Tech. Phys.	ru_RU
dc.description.abstract	In this study, we investigate the 2D problem of diffraction of a TE-polarized electromagnetic wave in an infinite waveguide with a longitudinal partition. The mathematical formulation of this physical problem is equivalent to the boundary value problem for the Helmholtz equation with the Dirichlet-type boundary conditions and the joining conditions. The problem is solved by the partial areas method (PAM). In this method, the solution to the problem in each subdomain is sought in the form of a series with unknown coefficients, which are determined from the joining condition at the interface between the media. Using the method of integro-summatory identities, this boundary value problem is reduced to an infinite system of linear algebraic equations (ISLAE) in unknown coefficients. We have derived ISLAE corresponding to the 2D problem of diffraction in an infinite waveguide with a longitudinal diaphragm. Computer experiments have been performed. We have detected resonance effects observed when the frequency of an incident wave is close to the natural frequencies of the subdomains corresponding to the branched part of the waveguide. We have constructed the diagrams of electromagnetic fields at resonance frequencies. The electromagnetic field energies have been calculated for various wavenumbers. Proceeding from the results of computer experiments, it can be concluded that the accuracy of fulfillment of the boundary joining condition depends on the ISLAE truncation parameter. To verify the accuracy of the fulfillment of the boundary conditions, we have introduced the concept of joining mismatch. It is shown that for the incident wave frequencies close to the eigenvalues of subdomains corresponding to the branched part of the waveguide, resonance phenomena are observed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	diffraction problem	ru_RU
dc.subject	partial areas method	ru_RU
dc.subject	resonance frequency	ru_RU
dc.title	Partial Areas Method in the Problem of Diffraction of an Electromagnetic Wave by a Longitudinal Partition in an Infinite Waveguide.	ru_RU
dc.type	Articles in international journals and collections	ru_RU