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Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and...
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Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and Microsystems

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microelectronics".

Deadline for manuscript submissions: closed (31 March 2025) | Viewed by 8922

Special Issue Editors

Prof. Dr. Slawomir Wiak

E-Mail Website
Guest Editor
Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland
Interests: Electrical Engineering and Computer Science; advanced numerical methods; CAD; database systems; AI (VR/AR); 5G; expert systems; e-learning systems; MEMS; mechatronic systems; engineering software; advanced software in medical sciences
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Paolo Di Barba

E-Mail Website
Guest Editor
Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy
Interests: magnetics; mechatronics; MEMS; evolutionary computing; multi-objective optimization; coupled problems; finite-element methods; metamaterials for 5G and 6G systems
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Lukasz Szymanski

E-Mail Website
Guest Editor
Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland
Interests: mechatronics; e-learning systems; MEMS; CAD; information technologies; advanced software in medical sciences; mechatronic systems; 5G and 6G systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will bring together the international community of researchers, engineers, and designers engaged in methods and techniques for the computation, modeling, simulation, measurement, and application of electromagnetic fields.

This issue will be mainly devoted to the application of these new ideas and computational methods in improving existing solutions and searching for new ones in the areas of sensors, actuators, MEMS and NEMS, electromagnetic devices, high-frequency applications (5G and 6G), and image processing in health services.

Progress in the technology of devices for sensing and actuation is boosted by several factors, for instance, the availability of smart materials such as magnetic composites, size miniaturization, and the impact of power electronics for supply.

In particular, miniaturization techniques make it possible to integrate different physical domains within the same device, the behavior of which is characterized by the interaction of coupled fields. This in turn has an impact on the mathematical and numerical modeling level, because tools for analysis and design more likely than not are supposed to offer facilities for multi-physics non-linear analysis. Correspondingly, sophisticated techniques of measurement are needed for the assessment and testing of prototypes.

The Special Issue presents a broad overview of methods for both the analysis and design of sensors and actuators. His issue is mainly addressed to scientists as well as students in the area of electrical, electronic and computer engineering, as well as artificial intelligence and mechatronics; special attention is focused on innovative MEMS devices.

Due to the multidisciplinary nature of the covered topics, the skills of different authors acting in different areas of science and technology will be needed, and relevant contributions are very welcome.

Prof. Dr. Slawomir Wiak
Prof. Dr. Paolo Di Barba
Prof. Dr. Lukasz Szymanski
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electromagnetic fields
  • electromagnetism in materials
  • smart materials
  • sensors and actuators
  • field-circuit models
  • finite-element analysis
  • computer-aided design (CAD)
  • inverse problems
  • multiobjective optimization
  • neural-network surrogate models
  • evolutionary computing (EC)
  • electromagnetic compatibility
  • 5G and 6G—theory, field modeling, technologies, and applications
  • image processing and virtual reality (VR) in electromagnetic devices

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (5 papers)

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Research

21 pages, 3997 KiB  
Article
Circuit-Centric Genetic Algorithm for the Optimization of a Radio-Frequency Receiver
by Hoyeon Shin, Mingi Kwon, Yeonjun Lee, Yeonggi Kim, Moon-Kyu Cho and Ickhyun Song
Electronics 2025, 14(4), 770; https://doi.org/10.3390/electronics14040770 - 16 Feb 2025
Viewed by 686
Abstract
This paper presents a design automation method for optimizing parameters of radio-frequency front-ends, specifically aiming to maximize the overall performance of a receiver circuit. In this work, the design target includes a reduction in power consumption and noise figure and an increase in [...] Read more.
This paper presents a design automation method for optimizing parameters of radio-frequency front-ends, specifically aiming to maximize the overall performance of a receiver circuit. In this work, the design target includes a reduction in power consumption and noise figure and an increase in conversion gain. The use of an artificial algorithm for the optimization of an RF receiver is investigated, illustrating how to achieve performance goals in a complex design space composed of multiple inter-related circuit parameters. As the basis of the proposed research, the genetic algorithm, a well-known metaheuristic approach, is chosen and utilized in the optimization process. Since the conventional GA has limitations in circuit optimization, including suboptimal performance and slow convergence due to crossover operations, the concept of a circuit-centric genetic algorithm is proposed as a viable approach that primarily focuses on the use of a mutation process. In addition, by preserving high-performing solutions and incorporating a guiding mechanism toward metric-specific best solutions, the proposed method achieves the target performance much faster compared to other optimization approaches. Therefore, it can be utilized in the optimization of circuit parameter sets in RF receiver design. Full article
(This article belongs to the Special Issue Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and Microsystems)
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18 pages, 2905 KiB  
Article
Analysis of Mutual Inductance Characteristics of Rectangular Coils Based on Double-Sided Electromagnetic Shielding Technology and Study of the Effects of Positional Misalignment
by Yang Leng, Derong Luo, Zhongqi Li and Fei Yu
Electronics 2025, 14(1), 200; https://doi.org/10.3390/electronics14010200 - 5 Jan 2025
Cited by 1 | Viewed by 1040
Abstract
In wireless power transfer systems, the relative positional misalignment between transmitting and receiving coils significantly impacts the system’s mutual inductance characteristics, thereby constraining the system’s output power stability and transmission efficiency optimization potential. Hence, accurate formulas for calculating mutual inductance are crucial for [...] Read more.
In wireless power transfer systems, the relative positional misalignment between transmitting and receiving coils significantly impacts the system’s mutual inductance characteristics, thereby constraining the system’s output power stability and transmission efficiency optimization potential. Hence, accurate formulas for calculating mutual inductance are crucial for optimizing coil structures and achieving mutual inductance stability. This study focuses on the mutual inductance characteristics of rectangular coils under positional misalignment conditions in a dual-sided electromagnetic shielding environment. Initially, the research deduces the incident magnetic flux density induced by the current in rectangular coils through the dual Fourier transform and magnetic vector potential method. Subsequently, Maxwell’s equations and boundary conditions are employed to analytically examine the induced eddy currents within the shielding layer, allowing for the calculation of reflected magnetic flux density. Based on these analyses, the study derives a formula for mutual inductance using the magnetic flux density method. A prototype was built for experimental verification. The experiment results show that the maximum error between the measured mutual inductance and the calculated result is less than 3.8%, which verifies the feasibility and the accuracy of the proposed calculation method. Simulations and empirical validation demonstrate the superior accuracy and practicality of the proposed formula. This research not only offers an innovative technological pathway for enhancing the stability and efficiency of wireless power transfer systems but also provides a solid theoretical foundation and guiding framework for coil design and optimization. Full article
(This article belongs to the Special Issue Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and Microsystems)
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17 pages, 3976 KiB  
Article
Numerical Investigation and Design Curves for Thinned Planar Antenna Arrays for 5G and 6G
by Daniele Pinchera, Fulvio Schettino, Mario Lucido, Gaetano Chirico and Marco Donald Migliore
Electronics 2024, 13(23), 4711; https://doi.org/10.3390/electronics13234711 - 28 Nov 2024
Viewed by 973
Abstract
We numerically investigate the relationship between the main parameters of thinned antenna arrays using a specifically designed evolutionary algorithm, the Multi-Objective Pareto Evolution for Thinning (MOPET). We provide some useful results that allow for the assessment of the achievable performance of antenna arrays [...] Read more.
We numerically investigate the relationship between the main parameters of thinned antenna arrays using a specifically designed evolutionary algorithm, the Multi-Objective Pareto Evolution for Thinning (MOPET). We provide some useful results that allow for the assessment of the achievable performance of antenna arrays and help researchers and practitioners design radar, 5G, and 6G systems. In particular, our approach allows us to quantify the advantage of thinned arrays with respect to traditional equispaced arrays (EA); as an example, using the same number of radiators, we can obtain the same directivity of an EA with a reduction in the side-lobe level (SLL) of more than 10dB, or increase the directivity of a couple of dB maintaining the same SLL of the EA, or get a combination of the two improvements. Moreover, the advantage of thinned architectures with respect to standard EA seems to improve with the increase in the dimension of the array. Full article
(This article belongs to the Special Issue Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and Microsystems)
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16 pages, 6397 KiB  
Article
Selecting the Best Permanent Magnet Synchronous Machine Design for Use in a Small Wind Turbine
by Marcin Lefik, Anna Firych-Nowacka, Michal Lipian, Malgorzata Brzozowska and Tomasz Smaz
Electronics 2024, 13(10), 1929; https://doi.org/10.3390/electronics13101929 - 15 May 2024
Cited by 1 | Viewed by 3669
Abstract
The article describes the selection of a permanent magnet synchronous machine design that could be implemented in a small wind turbine designed by the GUST student organization together with researchers working at the Technical University of Lodz. Based on measurements of the characteristics [...] Read more.
The article describes the selection of a permanent magnet synchronous machine design that could be implemented in a small wind turbine designed by the GUST student organization together with researchers working at the Technical University of Lodz. Based on measurements of the characteristics of available machines, eight initial designs of machines with different rotor designs were proposed. The size of the stator, the number of pairs of poles, and the dimensions of the magnets were used as initial parameters of the designed machines. The analysis was carried out about the K-index, the so-called index of benefits. The idea was to make the selected design as efficient as possible while keeping production costs and manufacturing time low. This paper describes how to select the best design of a permanent magnet synchronous generator intended to work with a small wind turbine. All generator parameters were selected keeping in mind the competition requirements, as the designed generator will be used in the author’s wind turbine. Based on the determined characteristics of the generator variants and the value of the K-index, a generator with a latent magnet rotor was selected as the best solution. The aforementioned K-index is a proprietary concept developed for the selection of the most suitable generator design. This paper did not use optimization methods; the analysis was only supported by the K-index. Full article
(This article belongs to the Special Issue Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and Microsystems)
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15 pages, 6285 KiB  
Article
Influence of the Cast Iron Frame on the Distribution of the Magnetic Field in the Stator Yoke and Additional Power Losses in the Induction Motor
by Krzysztof Komeza, Maria Dems, Slawomir Wiak, Rafal Libera, Jan Pietrzak, Patryk Stando and Krzysztof Tomczyk
Electronics 2024, 13(1), 119; https://doi.org/10.3390/electronics13010119 - 27 Dec 2023
Cited by 2 | Viewed by 1693
Abstract
Induction motors are a significant consumer of electricity. Therefore, their energy efficiency level plays a vital role in the world’s energy balance. The world’s markets strive to produce motors of efficiency class IE3 or IE4 while maximizing the use of wire and magnetic [...] Read more.
Induction motors are a significant consumer of electricity. Therefore, their energy efficiency level plays a vital role in the world’s energy balance. The world’s markets strive to produce motors of efficiency class IE3 or IE4 while maximizing the use of wire and magnetic materials. However, high induction values in the motor core can also lead to significant losses in construction materials, especially in the magnetic motor housing. This article aimed to show how it is possible to determine the distribution of the magnetic field and additional losses in the yoke and the cast-iron motor frame using field-circuit methods to model the motor and to refine the analytical method for calculating these losses at the motor design stage. Full article
(This article belongs to the Special Issue Innovative Numerical Methods for Advanced Computation of Electromagnetic Devices and Microsystems)
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