FDTD-based Numerical Solver for Electrodynamic Analysis of Microwave devices and Antennas
DOI: 10.21293/1818-0442-2026-29-1-68-74
Abstract: Relevance. In recent years, technological restrictions have made the development of trusted domestic numerical solvers and software tools for electromagnetic analysis of antennas and microwave devices particularly urgent. Purpose. This paper describes the progress achieved by TUSUR researchers in developing such a solver based on the Finite-Difference Time-Domain (FDTD) method. Methods. The developed solver is implemented as a C++ software library using modern parallel computation tools. Novelty. The solver integrates several original custom-developed mathematical models, including formulations for excitation sources and lumped loads. Results. The paper describes the main features and capabilities of the solver. Information on the current development status and future roadmap is provided. Simulation results for several benchmark problems, obtained using the implemented FDTD method and the Finite Integration Technique, show good agreement, confirming the solver's satisfactory accuracy. Practical significance. The developed software library can be successfully applied in the design and optimization of advanced antennas and microwave devices.
Keywords: microwave devices, antennas computational electromagnetics, computer simulation, digital twins, finite-difference method
Funding: The study was supported by the Russian Science Foundation grant No. 23-79-10165, https://rscf.ru/project/23-79-10165/.
For citation:
Ivanov A. A. FDTD-based Numerical Solver for Electrodynamic Analysis of Microwave devices and Antennas. Doklady Tomskogo gosudarstvennogo universiteta sistem upravleniya i radioelektroniki, 2026, vol. 29, no. 1, pp. 68–74. DOI: 10.21293/1818-0442-2026-29-1-68-74
Authors and copyright holders:
- Ivanov A. A. , Tomsk State University of Control Systems and Radioelectronics (Tomsk, Russia)
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