Constantinos Vlachos

Dr. Constantinos Vlachos

Naval Weapons Directorate, Hellenic Navy, Salamína, Attikí, Greece
orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 May 2017 in IEEE Transactions on Electromagnetic Compatibility
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Journal Article
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GVGeorge P. Veropoulos
George P. Veropoulos
PPPANAGIOTIS PAPAKANELLOS
PANAGIOTIS PAPAKANELLOS
Constantinos VlachosConstantinos Vlachos
Constantinos Vlachos
This paper presents a probabilistic approach for the susceptibility assessment of a straight printed-circuit-board trace in the presence of a random electromagnetic field, which is essentially modeled as a plane wave with parameters (magnitude, polarization angle, direction-of-arrival angles) treated as random variables. Closed-form expressions are derived for the probability density function of the induced far-end voltage in certain cases of field descriptions (excitation scenarios). An easy-to-apply Monte–Carlo approach is employed for comparison and verification purposes, but also to cope with scenarios that are not analytically tractable.

14 October 2019 in IEEE Transactions on Electromagnetic Compatibility
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Journal Article
Closed access
ALAlexander C. Lampris
Alexander C. Lampris
GVGeorge Panagiotis Veropoulos
George Panagiotis Veropoulos
Constantinos VlachosConstantinos Vlachos
Constantinos Vlachos
PPPANAGIOTIS PAPAKANELLOS
PANAGIOTIS PAPAKANELLOS
This article presents a probabilistic approach for the immunity/susceptibility assessment of a twisted-wire transmission line in the presence of a perfect ground plane. A random electromagnetic field is assumed to excite the transmission line, which is essentially modeled as a plane wave with certain parameters (magnitude, polarization angle, direction-of-arrival angles) treated as independent random variables. Closed-form expressions are provided for the probability density function of the induced common-mode and differential-mode terminal voltages in certain cases. New formulas for the pertinent first and second moments (mean values and mean square values) are also obtained. A general Monte Carlo technique is employed to verify the aforementioned closed-form expressions, but also for treating excitation scenarios that are not analytically tractable.

20 January 2026 in Mathematics
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Journal Article
Open access
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GVGeorge Panagiotis Veropoulos
George Panagiotis Veropoulos
PPPANAGIOTIS PAPAKANELLOS
PANAGIOTIS PAPAKANELLOS
Constantinos VlachosConstantinos Vlachos
Constantinos Vlachos
Frequency domain methods used in electromagnetic analyses, such as the Method of Auxiliary Sources (MAS) and the various Moment Methods (MoM), share many similarities but have notable differences in terms of numerical stability, accuracy, and computational cost. Computational cost differs from algorithmic complexity, which is easier to define. Consequently, it is rarely analyzed systematically in numerical studies. To this end, this work deals with the canonical problem of electromagnetic scattering from an externally excited circular cylinder of infinite conductivity and applies both MAS and MoM in order to assess their solutions and behaviors from the aforementioned perspectives. This problem is solved by meticulously applying MAS and two popular variants of MoM to achieve comparable stability and accuracy. Then, the methods are compared in terms of the associated computational cost, not only in solving the ensuing matrix equations, but also in computing the near and far fields at a large number of points.

1 January 2024 in Progress In Electromagnetics Research B
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Journal Article
Closed access
AMAikaterini Mangou
Aikaterini Mangou
GVGeorge P. Veropoulos
George P. Veropoulos
Constantinos VlachosConstantinos Vlachos
Constantinos Vlachos
PPPanagiotis J. Papakanellos
Panagiotis J. Papakanellos