Mutual coupling reduction in antenna arrays using artificial intelligence approach and inverse neural network surrogates

S Roshani, S Koziel, SI Yahya, MA Chaudhary… - Sensors, 2023 - mdpi.com
This paper presents a novel approach to reducing undesirable coupling in antenna arrays
using custom-designed resonators and inverse surrogate modeling. To illustrate the …

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 …

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 …

On nature-inspired design optimization of antenna structures using variable-resolution EM models

S Koziel, A Pietrenko-Dabrowska - Scientific Reports, 2023 - nature.com
Numerical optimization has been ubiquitous in antenna design for over a decade or so. It is
indispensable in handling of multiple geometry/material parameters, performance goals …

Generalized formulation of response features for reliable optimization of antenna input characteristics

A Pietrenko-Dabrowska, S Koziel - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Electromagnetic (EM)-driven parameter adjustment has become imperative in the design of
modern antennas. It is necessary because the initial designs rendered through topology …

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 …

Two-stage variable-fidelity modeling of antennas with domain confinement

A Pietrenko-Dabrowska, S Koziel, L Golunski - Scientific Reports, 2022 - nature.com
Surrogate modeling has become the method of choice in solving an increasing number of
antenna design tasks, especially those involving expensive full-wave electromagnetic (EM) …

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 …