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Applied Sciences
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Recent Developments and Applications of Complex Electromagnetic Systems
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Recent Developments and Applications of Complex Electromagnetic Systems

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (30 December 2023) | Viewed by 3451

Special Issue Editors

Prof. Dr. Salvador G. Garcia

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Guest Editor
Department of Electromagnetism and Matter Physics, University of Granada, 18071 Granada, Spain
Interests: electrical engineering; electronic engineering; microwave engineering; computational electromagnetics
Prof. Dr. Luis Manuel Diaz Angulo

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Guest Editor
Department of Electromagnetism and Matter Physics, University of Granada, 18071 Granada, Spain
Interests: electrical engineering; electronic engineering; microwave engineering; computational electromagnetics
Dr. Hai Lin

E-Mail Website
Guest Editor
College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
Interests: computational electromagnetics; topological electromagnetic; microwave engineering; wireless communication

Special Issue Information

Dear Colleagues,

The purpose of this Special Issue is to highlight recent developments in and applications of numerical methods in complex electromagnetic systems. We aim to bring together original research articles, reviews, and perspectives on a range of topics related to numerical electromagnetics. Potential topics of interest include but are not limited to:

  • High-performance computing for electromagnetic simulations;
  • Advanced numerical techniques for electromagnetic field analysis;
  • Electromagnetic wave propagation in complex media;
  • Modeling and simulation of electromagnetic devices and systems;
  • Optimization of electromagnetic systems using numerical methods;
  • Computational electromagnetics for biomedical applications;
  • Numerical techniques for electromagnetic compatibility and interference analysis;
  • Electromagnetic theory and numerical methods for nonlinear materials and metamaterials.

Prof. Dr. Salvador G. Garcia
Prof. Dr. Luis Manuel Diaz Angulo
Dr. Hai Lin
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. Applied Sciences 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

  • numerical electromagnetics
  • complex electromagnetic environments
  • electromagnetic devices
  • electromagnetic theory
  • high-performance computing
  • novel smart materials
  • bioelectromagnetics

Published Papers (3 papers)

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Research

22 pages, 12103 KiB  
Article
Design and Optimization of an Interior Permanent-Magnet Synchronous Motor for Aircraft Drive Application
by Fei Xiong, Rui Yan, Yuhang Xie and Kai Yang
Appl. Sci. 2024, 14(1), 309; https://doi.org/10.3390/app14010309 - 29 Dec 2023
Viewed by 942
Abstract
The torque performance of the interior permanent-magnet synchronous motor (IPMSM) must be further improved to satisfy the growing demand of aircraft drive application. To this end, this article focuses on the design optimization of the IPMSM structure in the aircraft drive systems to [...] Read more.
The torque performance of the interior permanent-magnet synchronous motor (IPMSM) must be further improved to satisfy the growing demand of aircraft drive application. To this end, this article focuses on the design optimization of the IPMSM structure in the aircraft drive systems to improve the torque density and reduce the torque ripple. A special fractional-slot winding and ∇-type magnetic-pole rotor topology are proposed as the optimized IPMSM structure compared with the structure of an existing motor. The simulations of the original and optimized structures at different current values reveal the variance of the torque in the average and ripple, mechanical and external characteristics, efficiency and steady-state temperature. The performance of an optimized prototype is analyzed by experimental testing, and the results show that an optimized motor has a higher torque density and lower torque ripple than the original one at the same speed and rated power, but it also has a higher temperature rise. However, the temperature rise value is acceptable in the experimental testing condition, so the validity of the design optimization method for the proposed structure is verified. Full article
(This article belongs to the Special Issue Recent Developments and Applications of Complex Electromagnetic Systems)
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10 pages, 3626 KiB  
Article
Loop-Type Field Probe to Measure Human Body Exposure to 5G Millimeter-Wave Base Stations
by DukSoo Kwon, Young Seung Lee, Chang-Hee Hyoung, Jung-Hwan Hwang and Hyung-Do Choi
Appl. Sci. 2023, 13(21), 11777; https://doi.org/10.3390/app132111777 - 27 Oct 2023
Viewed by 811
Abstract
This paper proposes a field probe to measure the power density (PD) at a millimeter-wave (mmWave) frequency band. The proposed probe is composed of a loop antenna in which one end is terminated with a load resistor. Such a structure enables the simultaneous [...] Read more.
This paper proposes a field probe to measure the power density (PD) at a millimeter-wave (mmWave) frequency band. The proposed probe is composed of a loop antenna in which one end is terminated with a load resistor. Such a structure enables the simultaneous measurement of electric (E)- and magnetic (H)-fields: the E-field is measured at a gap where the load resistor is placed, and the H-field is measured through the loop antenna. The simultaneous measurement makes it possible to measure PD for an incident wave even in the near field region where the E- and H-fields have different phases from each other. The proposed probe is fabricated and evaluated for its PD measurement performance. The measurement results show that the probe measures PD with an error less than 1.3 dB. Owing to the near field measurement, the proposed probe is useful in measuring the human body exposure to electromagnetic fields (EMFs) that are generated by 5G mmWave base stations. Full article
(This article belongs to the Special Issue Recent Developments and Applications of Complex Electromagnetic Systems)
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12 pages, 1443 KiB  
Article
A Multi-Bandwidth Reconfigurable Patch Antenna for Devices in WLAN and UWB Technology Applications
by Mohamed Bikrat, Seddik Bri, Alberto Gascón Bravo, Alejandro Muñoz Manterola, Miriam Gonzalez-Atienza and Farah Amador
Appl. Sci. 2023, 13(16), 9367; https://doi.org/10.3390/app13169367 - 18 Aug 2023
Viewed by 1052
Abstract
This article introduces a process to design, simulate, and measure a novel multi-band patch antenna with different operation modes, i.e., band centers and bandwidths. Switching between operation modes is possible using a pair of PIN diodes to connect different parts of the antenna [...] Read more.
This article introduces a process to design, simulate, and measure a novel multi-band patch antenna with different operation modes, i.e., band centers and bandwidths. Switching between operation modes is possible using a pair of PIN diodes to connect different parts of the antenna with the main antenna patch. Such a reconfigurable design allows for individual control of each frequency range. The main operation mode of the resulting antenna has an impedance bandwidth with two bands, one from 2.4 GHz to 2.73 GHz and another from 3.4 GHz to 5.73 GHz, with a maximum gain of 4.85 dBi and stable radiation patterns. The resulting antenna is suitable for applications using both ultra-wideband technologies and wireless local-area network (WLAN) technologies. Full article
(This article belongs to the Special Issue Recent Developments and Applications of Complex Electromagnetic Systems)
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