All Outputs (34)

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.

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.

The optical reservoir computer: a new approach to a programmable integrated optics system based on an artificial neural network (2020)
Book Chapter
Phang, S., Sewell, P. D., Vukovic, A., & Benson, T. M. (2020). The optical reservoir computer: a new approach to a programmable integrated optics system based on an artificial neural network. In G. C. Righini, & M. Ferrari (Eds.), Integrated Optics Volume 2: Characterization, devices and applications (361-380). Institution of Engineering and Technology (IET). https://doi.org/10.1049/pbcs077g_ch12

In this chapter, we briefly reviewed some developments in the field of integrated optics since Miller first introduced this concept, noting some approaches to optimise structures based on functional performance criteria. Chapter Contents: • 12.1 Intr... Read More about The optical reservoir computer: a new approach to a programmable integrated optics system based on an artificial neural network.

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.

Theory and numerical modelling of parity-time symmetric structures in photonics: boundary integral equation for coupled microresonator structures (2017)
Book Chapter
Phang, S., Vukovic, A., Gradoni, G., Sewell, P., Benson, T. M., & Creagh, S. C. (2017). Theory and numerical modelling of parity-time symmetric structures in photonics: boundary integral equation for coupled microresonator structures. In Recent Trends in Computational Photonics. Springer Nature

The spectral behaviour and the real-time operation of Parity-Time (PT) symmetric coupled resonators are investigated. A Boundary Integral Equation (BIE) model is developed to study these structures in the frequency domain. The impact of realistic gai... Read More about Theory and numerical modelling of parity-time symmetric structures in photonics: boundary integral equation for coupled microresonator structures.

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.

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.

Parity-time symmetric chain resonators (2016)
Presentation / Conference Contribution
Phang, S., Vukovic, A., Creagh, S., Gradoni, G., Sewell, P., & Benson, T. M. (2016). Parity-time symmetric chain resonators.

A simple tight-binding model to study the band-structure of an infinite length Parity-time (PT) symmetric chain of resonators is presented in this paper. In the talk, we will investigate the impact of having a structure of finite length and consider... Read More about Parity-time symmetric chain resonators.

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.

Threshold manipulation in parity-time symmetric microresonator chain (2015)
Presentation / Conference Contribution
Phang, S., Vukovic, A., Creagh, S., Benson, T. M., Gradoni, G., & Sewell, P. D. (2015). Threshold manipulation in parity-time symmetric microresonator chain.

This paper analyses the eigenfrequencies of an infinitely long chain of microresonators with PT symmetry. The results show that the depth of modulation of the real part of the refractive index can be used to control the threshold point of the PT stru... Read More about Threshold manipulation in parity-time symmetric microresonator chain.

Parity-time chain of whispering-gallery mode resonators (2015)
Presentation / Conference Contribution
Phang, S., Vukovic, A., Creagh, S., Benson, T. M., Gradoni, G., & Sewell, P. D. (2015). Parity-time chain of whispering-gallery mode resonators.

The paper analyses the dispersion characteristics of an infinitely long PT chain made of whispering gallery resonators with gain/loss modulation. The results show that the appearance of the threshold breaking point depends not only on both of couplin... Read More about Parity-time chain of whispering-gallery mode resonators.

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. https://doi.org/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.

A versatile all-optical parity-time signal processing device using a Bragg grating induced using positive and negative Kerr-nonlinearity (2015)
Journal Article
Phang, S., Vukovic, A., Benson, T. M., Susanto, H., & Sewell, P. (2015). A versatile all-optical parity-time signal processing device using a Bragg grating induced using positive and negative Kerr-nonlinearity. Optical and Quantum Electronics, 47(1), https://doi.org/10.1007/s11082-014-0012-2

The properties of gratings with Kerr nonlinearity and PT symmetry are investigated in this paper. The impact of the gain and loss saturation on the response of the grating is analysed for different input intensities and gain/loss parameters. Potentia... Read More about A versatile all-optical parity-time signal processing device using a Bragg grating induced using positive and negative Kerr-nonlinearity.

Practical limitation on operation of nonlinear parity-time Bragg gratings (2014)
Presentation / Conference Contribution
Phang, S., Vukovic, A., Susanto, H., Benson, T. M., & Sewell, P. (2014). Practical limitation on operation of nonlinear parity-time Bragg gratings.

The paper analyses the operation of PT Bragg gratings when the dielectric material is considered to be both dispersive and nonlinear and gain and loss are saturable. The paper demonstrates the application of the nonlinear PT Bragg Grating as an optic... Read More about Practical limitation on operation of nonlinear parity-time Bragg gratings.