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UDC 621.37

EVALUATION METHOD OF LARGE RADIUS CYLINDRICAL WIRE CURRENT DISTRIBUTION

L. V. Aronov, engineer, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.

We have considered the problem of evaluating current distribution along cylindrical wires by integral equations method. The aim of the research was to explore wire kernel influence on Hallen’s integral equation solution stability with different wire radii. The investigations of thin and thick wire were performed. We have evaluated resonance frequencies of half-wave dipole with different radii. We have shown that the usage of integral wire kernel based on asymptotic behavior elliptical integral of the first kind allows to obtain stable solution for wires with the diameter up to 20% from dipole length. The necessity to use thick wire mathematical model is explained. We have obtained input currents resonance curves from different wire radii. We
have shown that the incease of wire radius leads to the decrease of half-wave dipole resonance frequency.

Key words: mathematical model, numeric methods, integral equation, Hallen’s equation, thin wire antenna, half-wave dipole, logarithmic singularity, thin wire kernel.

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