Snezana Djuric

University of Novi Sad

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Nikola Djurić

University of Novi Sad

Dragan Kljajić

University of Novi Sad

Mirjana Damnjanović

University of Novi Sad

Nikola Kavecan

Jelena Bjelica

University of Novi Sad

Vidak Otasevic

Regulatory Agency for Electronic Communications and Postal Services

László F. Nagy

University of Novi Sad

Goran Stojanović

University of Novi Sad

TŠ

Tamara Škorić

University of Novi Sad

Nicola Pasquino

University of Naples Federico II

Cooperative Institutions

University of Novi Sad

University of Belgrade

Pokrajinski Sekretarijat za Nauku i Tehnološki Razvoj

Institute of Technical Sciences of SASA

Centre National de la Recherche Scientifique

BioSense Institute

Serbian Academy of Sciences and Arts

Institute of Physics Belgrade

Institute for Multidisciplinary Research

TU Wien

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The Wideband Approach of 5G EMF Monitoring

Springer eBooks (2021)

Nikola Djurić Nikola Kavecan Nenad Radosavljević Snezana Djuric

Wideband

10.1007/978-3-030-70572-5_6

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Citations (4)

A Hidden Knowledge in Long-Term EMF Monitoring of EMF RATEL Monitoring Network

2022 Photonics & Electromagnetics Research Symposium (PIERS) (2023)

Nikola Djurić Tamara Škorić Dragan Kljajić Vidak Otasevic Snezana Djuric

The long-term electromagnetic field (EMF) monitoring has become an imperative task in modern EMF investigation, particularly in areas of increased sensitivity to EMF exposure. Such kind of monitoring can provide valuable information on EMF variability, as well as some additional, hidden, knowledge from its continuous measurement data series. This paper will present an approach of the EMF behavior extraction from the measurement results, based on the averaging over time. The case study of the five-year monitoring period was analyzed, in which data seta was acquired by the sensor of the Serbian EMF RATEL monitoring network, in the University of Novi Sad (UNS) campus.

Continuous monitoring

10.1109/piers59004.2023.10221410

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Detection of ground reaction force using a miniaturized inductive displacement sensor

Snezana Djuric László F. Nagy Mirjana Damnjanović

In this paper, we present a miniaturized version of a previously developed ground reaction force sensor. The sensor is composed of two pairs of meander coils detecting displacement in a plane. One pair of coils determines vertical displacement, proportional to normal force distribution, while the other pair of coils determines horizontal displacement, proportional to tangential force distribution. The advantage of miniaturized sensor is easier implementation in the foot of humanoid robot due to its dimensions. A new simulation tool was developed to accurately calculate the input inductance variation.

Ground plane

Inductive sensor

Meander (mathematics)

Position (finance)

Ground reaction force

10.1109/epepemc.2010.5606521

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Contribution of Mobile Communication Technologies to EMF Exposure in the University of Novi Sad Campus Area

The Applied Computational Electromagnetics Society Journal (ACES) (2024)

Dragan R. Kljajić Nikola Djurić Karolina Kasas-Lazetic Miodrag M. Milutinov Snezana Djuric

Densely populated areas are usually extensively exposed to the emission of electromagnetic fields (EMFs) that is primarily caused due to extensive use of wireless telecommunication technologies, particularly those providing mobile phone communication services. Consequently, observation and control of EMF levels in human surroundings have great importance in terms of human health and environmental protection. Particular efforts have to be devoted to EMF investigation in highly sensitive areas, where people can stay for quite long periods, such as university campuses. This paper brings the results of 2023 EMF monitoring campaign, performed over the University of Novi Sad campus for the third time, comparing them with EMF results obtained in previous 2012 and 2018 campaigns. Having in mind the emergence of new 4G Long Term Evolution (LTE) base stations in the campus, during 2022, a special focus of the 2023 campaign was on the inevitable increase of field levels, because of the contribution of 2G/3G/4G mobile communication technologies to human EMF exposure. Despite the expected increase of the field levels, obtained values were still significantly lower than the minimal reference levels, prescribed by the Serbian legislation.

Mobile phone

Serbian

10.13052/2024.aces.j.390703

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Time Variability Analysis of RF-EMF Data from Continuous Monitoring Systems

Nikola Djurić Dragan Kljajić Nicola Pasquino Nunzia Solmonte Snezana Djuric

10.1109/elecom63163.2024.10892174

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Model of Information Logistics in EMF RATEL System for Long-term EMF Monitoring

Nikola Djurić Nikola Kavecan Dragan Kljajić Gorana Mijatović Snezana Djuric

The substantial development of wireless communication services has resulted in the increased distribution of artificial electromagnetic fields (EMF) in the environment. Accordingly, the natural EMF level has been noticeably increased, triggering the general public concerns on potentially unhealthy effects of EMF radiation in their surroundings. Those concerns require persistent EMF investigation, initiating the establishment of several innovative systems for longterm EMF monitoring. The latest one is the Serbian EMF RATEL system, which uses wireless monitoring stations, joined in the unified wireless network. In this paper, a model of a platform for information logistics intended for the information management of heterogeneous configuration of autonomous, wireless EMF monitoring stations, implemented in the Serbian EMF RATEL system, is presented.

Serbian

10.1109/piers-spring46901.2019.9017816

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An Approach for Evaluation of the Long-term EMF Monitoring

Nikola Djurić Tamara Škorić Dragan Kljajić Vidak Otasevic Snezana Djuric

The temporal evaluation of electromagnetic field (EMF) levels stepped to the fore after the appearance of innovative networks for EMF monitoring, such as EMF RATEL system. Besides the modest following of EMF fluctuation, the comprehensive statistical evaluation can be performed to reveal hidden field behavior, which can be important, particularly when the increased EMF sensitivity is experienced. The results of such analysis can be indispensable for scientific community, as well as numerous debates among the public on health effects of EMF exposure. In this paper, an approach for the evaluation of the long-term EMF data will be presented, for the case study of the EMF RATEL monitoring in the University of Novi Sad (UNS) campus, as an increased sensitivity area to municipality.

EMF measurement

10.1109/radio58424.2023.10146049

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Citations (1)

Design, Modeling, and Analysis of a Compact Planar Transformer

IEEE Transactions on Magnetics (2012)

Snezana Djuric Goran Stojanović Mirjana Damnjanović Milan Radovanović Éric Labouré

This paper presents a new design of a planar transformer. Over the surface of a flat core, meander-type design was engraved, so that symmetrically adjusted primary and secondary coils, of the same meander-type, can fit into the engraved design. Primary and secondary coils were covered with another flat core consequently forming a compact planar transformer. Windings of primary and secondary coils are printed on both sides of PCB. Conductive stripes of a winding from upper and bottom layer are connected by vias. The transformer was analyzed when the primary and secondary coils were without a core and with a core. High frequency parameters of the transformer were obtained by finite element modeling software and Impedance Analyzer HP4194A in the frequency range from 50 kHz to 1 MHz. The transformer is intended to be used in DC-DC converters (for switching frequency up to several hundred kHz).

Delta-wye transformer

Autotransformer

Transformer types

10.1109/tmag.2012.2202642

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Citations (50)

A Novel Approach to Extending the Linearity Range of Displacement Inductive Sensor

IEEE Transactions on Magnetics (2008)

Mirjana Damnjanović Lj. Živanov L. Nagy Snezana Djuric B.N. Biberdzic

This paper presents a meander-type displacement inductive sensor, usable for the detection of small displacements (less than 0.5 mm) in the plane. It also describes design, realization, and the input inductance measurement of sensor. A displacement in two directions can be detected by using two sensor elements, each having a pair of meander coils. In each pair, one of the coils is fixed and between its terminals the input inductance was measured, while the other coil is short-circuited. If one coil is moved above the other, in directions of x - and z -axes, coupling between the coils will change, as well as the input inductance, which serves as a measure of displacement. In order to achieve better linearity of the sensor, longitudinal gaps are inserted in the middle of each conductive segment of one fixed coil. Four sets of inductive sensors were realized: without gap and with three different gaps. Planar, low-cost PCB technology was chosen for our prototype. In addition, an improved model of the inductive sensor is proposed. The input inductance of displacement sensor was calculated and compared with measured values. A good agreement was found.

Linearity

Inductive sensor

Meander (mathematics)

Equivalent series inductance

Inductive coupling

10.1109/tmag.2008.2002801

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Citations (27)

Model-Based Clustering of RF-EMF Monitoring Data to Analyze Time Variability

Nicola Pasquino Nunzia Solmonte Nikola Djurić Dragan Kljajić Snezana Djuric

10.1109/mn60932.2024.10615478

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Citations (0)