[HTML][HTML] Multistable dynamics and control of a new 4D memristive chaotic Sprott B system

R Ramamoorthy, K Rajagopal, GD Leutcho… - Chaos, Solitons & …, 2022 - Elsevier
This work proposes and investigates the dynamic behavior of a new memristive chaotic
Sprott B system. One of the interesting features of this system is that it has a bias term that …

Advanced RF and microwave design optimization: A journey and a vision of future trends

JE Rayas-Sánchez, S Koziel… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
In this paper, we outline the historical evolution of RF and microwave design optimization
and envisage imminent and future challenges that will be addressed by the next generation …

Performance-based nested surrogate modeling of antenna input characteristics

S Koziel, A Pietrenko-Dabrowska - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Utilization of electromagnetic (EM) simulation tools is mandatory in the design of
contemporary antenna structures. At the same time, conducting design procedures that …

Expedited yield optimization of narrow-and multi-band antennas using performance-driven surrogates

A Pietrenko-Dabrowska, S Koziel, M Al-Hasan - IEEE Access, 2020 - ieeexplore.ieee.org
Uncertainty quantification is an important aspect of engineering design, also pertaining to
the development and performance evaluation of antenna systems. Manufacturing tolerances …

Constrained multi-objective optimization of compact microwave circuits by design triangulation and pareto front interpolation

S Koziel, A Pietrenko-Dabrowska - European Journal of Operational …, 2022 - Elsevier
Abstract Development of microwave components is an inherently multi-objective task. This is
especially pertinent to the design closure stage, ie, final adjustment of geometry and/or …

Low-cost modeling of microwave components by means of two-stage inverse/forward surrogates and domain confinement

S Koziel, A Pietrenko-Dabrowska… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Full-wave electromagnetic (EM) analysis is one of the most important tools in the design of
modern microwave components and systems. EM simulation permits reliable evaluation of …

Offset-dominated uncountably many hyperchaotic oscillations

X Zhang, C Li, L Minati, G Chen… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Memristors have been extensively studied in the field of nonlinear dynamics. However, the
dynamic regulation mechanism of memristor-induced hyperchaotic oscillation has not been …

Improved-efficacy EM-driven optimization of antenna structures using adaptive design specifications and variable-resolution models

S Koziel, A Pietrenko-Dabrowska - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Optimization-driven parameter tuning is an essential step in the design of antenna systems.
Although in many cases, it is still conducted through parametric studies, rigorous numerical …

Recent advances in high frequency modeling by means of domain confinement and nested kriging

S Koziel, A Pietrenko-Dabrowska - IEEE Access, 2020 - ieeexplore.ieee.org
Development of modern high-frequency components and circuits is heavily based on full-
wave electromagnetic (EM) simulation tools. Some phenomena, although important from the …

Antenna modeling using variable-fidelity EM simulations and constrained co-kriging

A Pietrenko-Dabrowska, S Koziel - IEEE Access, 2020 - ieeexplore.ieee.org
Utilization of fast surrogate models has become a viable alternative to direct handling of full-
wave electromagnetic (EM) simulations in EM-driven design. Their purpose is to alleviate …