All Outputs (23)

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, 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.

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.

Impact of In-Situ Radome Lightning Diverter Strips on Antenna Performance (2020)
Journal Article
Vukovic, A., Sewell, P., & Benson, T. M. (2020). Impact of In-Situ Radome Lightning Diverter Strips on Antenna Performance. IEEE Transactions on Antennas and Propagation, 68(11), 7287-7296. https://doi.org/10.1109/tap.2020.2998169

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
Odeyemi, J. S., Vukovic, A., Benson, T. M., & Sewell, P. (2020). Stretched-coordinate PML in 2D TLM simulations. IET Science Measurement and Technology, 14(3), 272-277. https://doi.org/10.1049/iet-smt.2019.0340

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
Odeyemi, J. S., Vukovic, A., Benson, T. M., & Sewell, P. D. (2020). A Complex Domain Mapping of the SCN for an Effective PML Implementation in TLM. IEEE Open Journal of Antennas and Propagation, 1, 2637-6431. https://doi.org/10.1109/ojap.2020.2986293

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.

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.

Numerical simulation of electromagnetic coupling in explicitly meshed wiring looms and bundles (2017)
Journal Article
Meng, X., Sewell, P., Vukovic, A., Zhang, Z., Benson, T. M., Jones, C., …South, G. (2018). Numerical simulation of electromagnetic coupling in explicitly meshed wiring looms and bundles. IET Science, Measurements and Technology, 12(2), 176-181. https://doi.org/10.1049/iet-smt.2017.0359

In this paper, the Unstructured Transmission Line Modelling (UTLM) method based on a tetrahedral mesh is applied to model the electromagnetic coupling into wire looms and bundles with multiple cores that are typical of an aircraft system, when they a... Read More about Numerical simulation of electromagnetic coupling in explicitly meshed wiring looms and bundles.

Extracting modal field profiles from 3D unstructured transmission line modelling meshes for use as sources and observers (2017)
Journal Article
Sewell, P., Vukovic, A., Benson, T. M., & Meng, X. (2017). Extracting modal field profiles from 3D unstructured transmission line modelling meshes for use as sources and observers. IET Science, Measurements and Technology, 11(6), 780-785. doi:10.1049/iet-smt.2016.0357

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.

Coupled electrothermal two-dimensional model for lightning strike prediction and thermal modeling using the TLM method (2017)
Journal Article
Elkalsh, A., Sewell, P., Benson, T. M., & Vukovic, A. (2017). Coupled electrothermal two-dimensional model for lightning strike prediction and thermal modeling using the TLM method. IEEE Journal on Multiscale and Multiphysics Computational Techniques, 2, 38-48. https://doi.org/10.1109/JMMCT.2017.2683066

This paper presents a fully coupled two-dimensional (2-D) multiphysics model for predicting the location of the arc discharge and lightning channel, and modeling its thermal and electrical behavior as a highly conductive plasma channel. The model mak... Read More about Coupled electrothermal two-dimensional model for lightning strike prediction and thermal modeling using the TLM method.

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.

Experimental benchmarking of Unstructured Transmission Line Modelling (UTLM) method in modelling twisted wires (2016)
Journal Article
Meng, X., Sewell, P., Rahman, N. H., Vukovic, A., & Benson, T. M. (in press). Experimental benchmarking of Unstructured Transmission Line Modelling (UTLM) method in modelling twisted wires

In this paper the Unstructured Transmission Line Modelling (UTLM) method based on a tetrahedral mesh has been applied to modelling of the coupling between a single wire and a twisted wire pair. The effects of wire twisting on the crosstalk and coupli... Read More about Experimental benchmarking of Unstructured Transmission Line Modelling (UTLM) method in modelling twisted wires.

Electro-thermal modelling for plasmonic structures in the TLM Method (2016)
Journal Article
Elkalsh, A., Vukovic, A., Sewell, P., & Benson, T. M. (2016). Electro-thermal modelling for plasmonic structures in the TLM Method. Optical and Quantum Electronics, 48(4), https://doi.org/10.1007/s11082-016-0542-x

This paper presents a coupled electromagnetic-thermal model for modelling temperature evolution in nano-size plasmonic heat sources. Both electromagnetic and thermal models are based on the Transmission Line Modelling (TLM) method and are coupled thr... Read More about Electro-thermal modelling for plasmonic structures in the TLM Method.

Extended Capability Models for Carbon Fiber Composite (CFC) Panels in the Unstructured Transmission Line Modeling (UTLM) Method (2016)
Journal Article
Meng, X., Vukovic, A., Benson, T. M., & Sewell, P. (2016). Extended Capability Models for Carbon Fiber Composite (CFC) Panels in the Unstructured Transmission Line Modeling (UTLM) Method. IEEE Transactions on Electromagnetic Compatibility, 58(3), 811-819. https://doi.org/10.1109/TEMC.2016.2531791

© 2016 IEEE. An effective model of single- and multilayered thin panels, including those formed using carbon fiber composite (CFC) materials, is incorporated into the transmission line modeling (TLM) method. The thin-panel model is a one-dimensional... Read More about Extended Capability Models for Carbon Fiber Composite (CFC) Panels in the Unstructured Transmission Line Modeling (UTLM) Method.

Localized single frequency lasing states in a finite parity-time symmetric resonator chain (2016)
Journal Article
Phang, S., Vukovic, A., Creagh, S. C., Sewell, P., Gradoni, G., & Benson, T. M. (2016). Localized single frequency lasing states in a finite parity-time symmetric resonator chain. Scientific Reports, 6, Article e20499. https://doi.org/10.1038/srep20499

In this paper a practical case of a finite periodic Parity Time chain made of resonant dielectric cylinders is considered. The paper analyzes a more general case where PT symmetry is achieved by modulating both the real and imaginary part of the mate... Read More about Localized single frequency lasing states in a finite parity-time symmetric resonator chain.

Parity-time symmetric coupled microresonators with a dispersive gain/loss (2015)
Journal Article
Phang, S., Vukovic, A., Creagh, S. C., Benson, T. M., Sewell, P. D., & Gradoni, G. (2015). Parity-time symmetric coupled microresonators with a dispersive gain/loss. Optics Express, 23(9), 11493-11507. https://doi.org/10.1364/oe.23.011493

The paper reports on the coupling of Parity-Time (PT)-symmetric whispering gallery resonators with realistic material and gain/loss models. Response of the PT system is analyzed for the case of low and high material and gain dispersion, and also for... Read More about Parity-time symmetric coupled microresonators with a dispersive gain/loss.

Modeling curved carbon fiber composite (CFC) structures in the transmission-line modeling (TLM) method (2015)
Journal Article
Meng, X., Sewel, P., Phang, S., Vukovic, A., & Benson, T. (2015). Modeling curved carbon fiber composite (CFC) structures in the transmission-line modeling (TLM) method. IEEE Transactions on Electromagnetic Compatibility, 57(3), 384-390. doi:10.1109/TEMC.2015.2400055

A new embedded model for curved thin panels is developed in the transmission line modeling (TLM) method. In this model, curved panels are first linearized and then embedded between adjacent 2-D TLM nodes allowing for arbitrary positioning between adj... Read More about Modeling curved carbon fiber composite (CFC) structures in the transmission-line modeling (TLM) method.