All Outputs (29)

Two-Dimensional Coupled Electrothermal Method Based on the Unstructured Transmission-Line Modelling Method for Lightning Protection Simulations (2024)
Journal Article

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)
Conference Proceeding

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)
Conference Proceeding

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

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

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

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)
Conference Proceeding

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)
Conference Proceeding

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

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

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.

PML Effectiveness in the Transmission Line Modelling Method for Radiation and Scattering Applications (2020)
Conference Proceeding

This paper demonstrates the effectiveness of the recently introduced, stable, perfectly matched layer (PML) for the Transmission Line Modelling (TLM) method. The superiority of the new PML over the TLM matched boundary is demonstrated by application... Read More about PML Effectiveness in the Transmission Line Modelling Method for Radiation and Scattering Applications.

Impact of In-Situ Radome Lightning Diverter Strips on Antenna Performance (2020)
Journal Article

Lightning diverter strips are commonly used to protect the antenna and sensitive equipment within an airborne radome. This paper compares the impact of solid metallic and segmented diverter strips on the radiation properties of the enclosed antenna.... Read More about Impact of In-Situ Radome Lightning Diverter Strips on Antenna Performance.

Stretched-coordinate PML in 2D TLM simulations (2020)
Journal Article

A novel implementation of the stretched coordinate perfectly matched layer (PML) is presented for the two-dimensional (2D) transmission line modelling (TLM) method. The formulation offers a unified approach and is based on the mapping of the TLM node... Read More about Stretched-coordinate PML in 2D TLM simulations.

A Complex Domain Mapping of the SCN for an Effective PML Implementation in TLM (2020)
Journal Article

An improved implementation of the perfectly matched layer (PML) is developed for the Transmission Line Modelling (TLM) method based on a mapping of the symmetrical condensed node (SCN) to an analytically extended geometric space. By mapping the TLM n... Read More about A Complex Domain Mapping of the SCN for an Effective PML Implementation in TLM.

An Improved PML Implementation In The Transmission Line Method (2019)
Conference Proceeding

A new framework for the development of the perfectly matched layer (PML) in the Transmission Line Modelling (TLM) method is demonstrated. The formulation is based on the stretched coordinate PML and involves the mapping of the TLM node to an analytic... Read More about An Improved PML Implementation In The Transmission Line Method.

Holistic appraisal of modeling installed antennas for aerospace applications (2018)
Journal Article
Vukovic, A., Sewell, P., & Benson, T. (2019). Holistic appraisal of modeling installed antennas for aerospace applications. IEEE Transactions on Antennas and Propagation, 67(3), 1396-1409. https://doi.org/10.1109/TAP.2018.2884769

This paper uses the Unstructured Transmission Line Modeling Method to investigate near field interactions between a broadband microwave antenna and a platform that arise as a result of antenna installation. The antenna, feed line and the platform are... Read More about Holistic appraisal of modeling installed antennas for aerospace applications.

Extracting modal field profiles from 3D unstructured transmission line modelling meshes for use as sources and observers (2017)
Journal Article

Large-scale three-dimensional (3D) electromagnetic simulations are commonly used as design and investigation tools in a wide variety of technological fields. It is not uncommon for both excitations and observation quantities to be expressed in terms... Read More about Extracting modal field profiles from 3D unstructured transmission line modelling meshes for use as sources and observers.

Complexity Reduction of Multiscale UTLM Cell Clusters (2017)
Journal Article
Sewell, P., Benson, T. M., Vukovic, A., & Meng, X. (2017). Complexity Reduction of Multiscale UTLM Cell Clusters. IEEE Journal on Multiscale and Multiphysics Computational Techniques, 2, 18-28. https://doi.org/10.1109/jmmct.2017.2670613

Time domain electromagnetic simulations employing unstructured tetrahedral meshes offer smooth boundary approximations and graded meshes for multiscale problems. However, multiscale effects may arise not only as a consequence of fine geometry, but al... Read More about Complexity Reduction of Multiscale UTLM Cell Clusters.

Installed antenna performance in airborne radomes of different profiles (2016)
Journal Article
Vukovic, A., Sewell, P., Meng, X., & Benson, T. M. (2016). Installed antenna performance in airborne radomes of different profiles. Applied Computational Electromagnetics Society Journal, 1(8),

In this paper, broadband interactions between an antenna and a radome are modelled using a full wave numerical solver. By accurately describing both the antenna and the radome geometry with a single numerical method, a comprehensive prediction of the... Read More about Installed antenna performance in airborne radomes of different profiles.

Advanced computational electromagnetics at BAE systems (2016)
Presentation / Conference Contribution
Jones, C., Sewell, P., Benson, T. M., Vukovic, A., Meng, X., & Bucklow, H. (2016). Advanced computational electromagnetics at BAE systems.