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Two-Dimensional Coupled Electrothermal Method Based on the Unstructured Transmission-Line Modelling Method for Lightning Protection Simulations (2024)
Journal Article
Yan, K., Vukovic, A., & Sewell, P. (2024). Two-Dimensional Coupled Electrothermal Method Based on the Unstructured Transmission-Line Modelling Method for Lightning Protection Simulations. IEEE Journal on Multiscale and Multiphysics Computational Techniques, 9, 208-217. https://doi.org/10.1109/jmmct.2024.3421958

This paper outlines a fully coupled electrothermal time-domain method to model the effects of lightning strikes and the formation of plasma. The plasma material is described by using the Drude model. This method predicts the formation of the discharg... Read More about Two-Dimensional Coupled Electrothermal Method Based on the Unstructured Transmission-Line Modelling Method for Lightning Protection Simulations.

Unstructured Transmission Line Modelling (TLM) Method for Modelling of Advanced Photonic Structures (2023)
Presentation / Conference Contribution
Vukovic, A., Sewell, P., Dimitrijevic, T., Lang, B., Rihani, S., Boylan, K., Berry, G., Hattasan, N., Moodie, D., Rawsthorne, J., & Robertson, M. (2023, October). Unstructured Transmission Line Modelling (TLM) Method for Modelling of Advanced Photonic Structures. Presented at 16th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS 2023)), Niš , Serbia

This paper overviews the most recent advances in the unstructured Transmission Line Modelling method that is uniquely placed for modeling advanced photonic applications with multi-scale features. The paper focuses on the holistic approach that needs... Read More about Unstructured Transmission Line Modelling (TLM) Method for Modelling of Advanced Photonic Structures.

Modelling Photonic Crystal Surface Emitting Lasers (PCSELs) with Iterative Weighted Index Method (2023)
Presentation / Conference Contribution
Lang, B., Vukovic, A., Sewell, P., Rihani, S., Boylan, K., Berry, G., Hattasan, N., Moodie, D., & Rawsthorne, J. (2023, October). Modelling Photonic Crystal Surface Emitting Lasers (PCSELs) with Iterative Weighted Index Method. Presented at 2023 International Conference on Electromagnetics in Advanced Applications, ICEAA 2023, Venice, Italy

Photonic crystal surface emitting lasers (PCSELs) are a promising type of semiconductor laser, able to maintain single-mode operation over a large area, resulting in a high-power beam with small angular divergence.

Assessment of the Robustness of Flexible Antennas to Complex Deformations (2023)
Journal Article
Altinozen, E., Vukovic, A., & Sewell, P. (2023). Assessment of the Robustness of Flexible Antennas to Complex Deformations. IEEE Transactions on Antennas and Propagation, 71(6), 4714-4723. https://doi.org/10.1109/TAP.2023.3262671

Wearable antennas can suffer from a variety of mechanical deformations that are induced by the body dynamic. The paper analyses how these complex deformations impact the performance of a flexible antenna operating in the 5-6 GHz band. The Green Coord... Read More about Assessment of the Robustness of Flexible Antennas to Complex Deformations.

Holistic Analysis of Conformal Antennas using the Cylindrical TLM Method (2023)
Journal Article
Dimitrijevic, T., Vukovic, A., Atanaskovic, A., Jokovic, J., Sewell, P., & Doncov, N. (2023). Holistic Analysis of Conformal Antennas using the Cylindrical TLM Method. IEEE Transactions on Antennas and Propagation, 71(5), 4028-4035. https://doi.org/10.1109/tap.2023.3260633

The impact of deformations on wearable antenna performance has been analyzed both experimentally and computationally. However, the reported results have been inconsistent and often contradictory. This paper highlights how the choice of computational... Read More about Holistic Analysis of Conformal Antennas using the Cylindrical TLM Method.

Assessing the Impact of Twisting and Bending Deformations on Flexible Interconnect Performance (2022)
Journal Article
Altinozen, E., Vukovic, A., & Sewell, P. (2022). Assessing the Impact of Twisting and Bending Deformations on Flexible Interconnect Performance. IEEE journal on flexible electronics, 2(2), 233-239. https://doi.org/10.1109/jflex.2022.3232470

Flexible interconnects are essential components for signal transmission for foldable and wearable electronics. As such they are exposed to a variety of mechanical deformations that can degrade their electromagnetic performance. This paper analyses th... Read More about Assessing the Impact of Twisting and Bending Deformations on Flexible Interconnect Performance.

Transmission Line Modelling of an Eccentrically Loaded probe Coupled Cylindrical Cavity (2022)
Presentation / Conference Contribution
Jokovic, J., Dimitrijevic, T., Atanaskovic, A., Doncov, N., Altinozen, E., Vukovic, A., & Sewell, P. (2022, November). Transmission Line Modelling of an Eccentrically Loaded probe Coupled Cylindrical Cavity. Presented at 2022 XIV International Symposium on Industrial Electronics and Applications (INDEL), Banja Luka, Bosnia and Herzegovina

In this paper, numerical Transmission Line-Matrix (TLM) method is applied to model an eccentrically loaded cylindrical cavity in order to analyze an impact of the eccentricity on the resonant frequency values. Two different types of meshes are consid... Read More about Transmission Line Modelling of an Eccentrically Loaded probe Coupled Cylindrical Cavity.

Two-dimensional TE Series Node Transmission-Line Modelling Based on Unstructured Triangular Meshes (2022)
Presentation / Conference Contribution
Yan, K., Vukovic, A., & Sewell, P. (2022, September). Two-dimensional TE Series Node Transmission-Line Modelling Based on Unstructured Triangular Meshes. Presented at 2022 52nd European Microwave Conference (EuMC), Milan, Italy

The transmission-line modelling (TLM) method has been widely applied to many areas of electromagnetic simulations. This paper presents the development of the series TE model for the TLM method based on triangular meshes. The 2D series unstructured TL... Read More about Two-dimensional TE Series Node Transmission-Line Modelling Based on Unstructured Triangular Meshes.

Two-Dimensional Thermal Diffusion Equation Solver Based on Unstructured Transmission-Line Modelling and Optimal Delaunay Triangular Meshes (2022)
Journal Article
Yan, K., Vukovic, A., Sewell, P., & Benson, T. M. (2022). Two-Dimensional Thermal Diffusion Equation Solver Based on Unstructured Transmission-Line Modelling and Optimal Delaunay Triangular Meshes. IEEE Journal on Multiscale and Multiphysics Computational Techniques, https://doi.org/10.1109/JMMCT.2022.3209071

The transmission-line modelling (TLM) method has been widely applied to many areas including electromagnetic and heat conduction problems. Its unstructured version, unstructured TLM (UTLM), however, has not hitherto been fully exploited in thermal di... Read More about Two-Dimensional Thermal Diffusion Equation Solver Based on Unstructured Transmission-Line Modelling and Optimal Delaunay Triangular Meshes.

Systematic Generation of Arbitrary Antenna Geometries (2022)
Journal Article
Altinozen, E., Harrison, I., Vukovic, A., & Sewell, P. (2022). Systematic Generation of Arbitrary Antenna Geometries. IEEE Transactions on Antennas and Propagation, 70(8), 6377-6387. https://doi.org/10.1109/TAP.2022.3165539

Applications for conformal, wearable antennas are growing for consumer electronics. Hence, it is important to assess to what degree antenna performance can be tolerant to in-situ deformations that can take the form of bending, crumpling and twisting... Read More about Systematic Generation of Arbitrary Antenna Geometries.