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Abstract
The paper deals with modelling of radiation from arbitrarily shaped thin wires above a multilayer and related engineering applications. The formulation is based on the set of corresponding Pocklington integro-differential equations (IDEs) for curved wires. The influence of lower layered half-space is taken into account by means of simplified reflection coefficient stemming from modified image theory (MIT). The set of coupled IDEs is handled via Galerkin Bubnov variant of indirect boundary element method (GB-IBEM) for curvilinear elements. The related field radiated from a wire configuration is obtained from corresponding integral expressions including integration of the currents along a given wire configuration. Some illustrative computational examples for certain wire configurations pertaining to dipole antennas, power communication systems (PLC) and instrumental landing systems (ILS) are given in the paper.
Acknowledgements
The authors would like to thank flight inspector Rade Stančić and SMATSA aircrew for providing the measurement of ILS signals during flight calibration service.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
D. Poljak
D. Poljak received his PhD in el. Eng. in 1996 from the Univ. of Split, Croatia. He is the Full Prof. at Dept. of Electron. and Computing, Univ. of Split. His research interests are oriented to computational electromagnetics (electromagn. compatibility, bioelectromagnetics and plasma physics). To date Prof. Poljak has published more than 160 journ. and 250 conf. papers, and authored some books, e.g. two by Wiley, New Jersey and one by Elsevier, St Louis. He is a Senior member of IEEE, a member of Editorial Board of Eng. Anal. with Boundary Elements, Math. Problems in Eng. And IET Sci. Measur. & Techn. He was awarded by several prizes for his achievements, such as National Prize for Science (2004), Croatian sect. of IEEE annual Award (2016) and Technical Achievement Award of the IEEE EMC Society (2019). Since 2013 Prof. Poljak has been a member of the board of the Croatian Science Foundation. He is currently involved in ITER physics EUROfusion collab. and in Croatian center for excellence in research for tech. sciences. He is active in few Working Groups of IEEE/Internat. Committee on Electromagnetic Safety (ICES) Tech. Comm. 95 SC6 EMF Dosimetry Modeling.
V. Doric
V. Doric was born on 27th of April 1974, in Split, Croatia. He received the MSc and PhD degrees from the University of Split, Split, Croatia, in 2003 and 2009, respectively. He is employed at the University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture (FESB) since January 2001. He is currently Assistant Professor at the Department of Electronics and Computing and the Chair of FESB Publishing Committee. He is a member of IEEE since 2005. He served as a President of Croatian chapter of IEEE EMC society for the period from 2016 to 2019. His research interests include computational methods in electromagnetics, particularly in the numerical modeling of wire antenna structures with strong applications in the field of electromagnetic compatibility. To date, he has published two books, 16 journal papers and nearly 66 conference papers in the area of computational electromagnetics and electromagnetic compatibility. Prof. Doric has been actively working as a collaborator on four international research projects and four research projects funded by Ministry of science, education and sport, Republic of Croatia.
M. Birkic
M. Birkic graduated at the Faculty of Navy, University of Split, in November 1994. The same year started to study Electronics on the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture in Split, where he graduated in December 1998. In 2007, at the Wessex Institute of Technology (WIT), the University of Wales, he has completed a postgraduate study called Electromagnetic Environmental Compatibility and earned a Master of Philosophy (MPhil) degree. He received the PhD degree from the University of Split, Split, Croatia, in 2019. From 1999 to 2000, he worked at the Split Shipyard in production facilities as commissioning engineer responsible for the quality of work performed. Since 2001, he has been working in the Croatian Air Navigation Control Ltd. He is currently head of Istra/Kvarner Approach and Aerodrome ATC Unit. In recent years, he has been working in the field of engineering and development of aviation systems and as a coordinator of operational and technical implementation. He has several different skills necessary for assessing the state of the aviation technical system and ensuring the smooth operation of critical operating processes. After graduation, he continues his education, certification and professional development in several directions in the areas related to air navigation safety. His research interests include electromagnetic compatibility particularly in the numerical modelling of wire antenna structures used for air navigation safety purposes. To date, he has published nearly 10 conference papers in the area of electromagnetic compatibility and human exposure to electromagnetic fields.