Vol. 26, No. 2 - December 2022

Editor’s Column

Mladen Knezic
AS we close another year, it is time to recall our first steps. On 25th anniversary of the Electronics journal, I invited our founder and honorary Editor-in-Chief, prof. Branko Dokic, to share with our readership the major milestones and people who actively participated in the journey called the Electronics journal. After some discussion, we agreed to jointly  write aspecial letter devoted to 25 years of the journal that we entitled ”Twenty Five Years of the Electronics journal: the Past, the Present, and the Future“.
In addition, this number contains papers that report original research results in the field of industrial electronics, antenna design, wireless sensor networks, and power electronics.
The first paper, entitled ‘Development and Validation of a Less Expensive and Portable PLC Module for Students Training in Industrial Automation,” authored by J. F. Palomino Masco, explores development of an open-source based costeffective and portable PLC module aimed for student training in industrial automation. The author describe two prototypes and compare them with commercial PLCs in terms of performance, reliability, and price.
The second study, entitled “A Modified-square Slot Antenna with Circular Polarization Characteristics for Military Band Applications,” by M. Sahal, D. Yadav, D. Bhatnagar, and M. Tiwari, presents a design and performance analysis of a circularly polarized (CP) antenna designed using characteristic modal analysis (CMA) for military band application.
In the third paper, “Empirical Evaluation of ECC Batch Verification Algorithms of Digital Signature in Wireless Sensor Network,” by P. Kumar, S. K. Sharma, and K. U. Kadam, the authors provided a study which aims at examining and analyzing the different types of batch verification algorithms based on Elliptic Curve Cryptography (ECC) that are used for authentication in Wireless Sensor Networks (WSNs).
Finally, the paper “Analysis and Experimental Validation of Selective Harmonic Elimination in Single-Phase Five-Level Inverter using Particle Swarm Optimization Algorithm,” authored by A. E. Toubal Maamar, presents the analysis and experimental validation of selective harmonic elimination in single-phase multi-level inverter using particle swarm optimization algorithm. The algorithm was implemented and demonstrated on a low-cost DSP–Delfino-C2000-TMS320F28379D platform. The theoretical analysis was verified by simulations in MATLAB/Simulink environment, and additionally proved by experimental results on a prototype.
I thank the authors for their contribution to this issue of the journal and to all the reviewers who participated in the editorial process by providing valuable comments in timely manner to the editors and authors. I wish all readers happy forthcoming holidays, as well as fruitful and successful New Year.
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