THE COMPUTATIONAL METHOD FOR CURRENTS EXCITED IN WIRE ANTENNAS UNDER THE EFFECT OF PULSE ELECTROMAGNETIC FIELDS

A. I. Golubev, M. D. Kamchibekov, V. A. Terekhin
VANT. Ser.: Mat. Mod. Fiz. Proc. 1995. Вып.1-2. С. 25-32.

      A method is presented to evaluate the current excited by a plane electromagnetic wave on a thin cylindrical wire in a non-conducting medium. The method relies upon the solution of Poclington equation in the time representation that is reduced, through special replacement, to a system of equations, like telegraph equations, but with nonlocal inductance.
      The finite-difference method is presented for the resulting equations. Its performance is illustrated by one problem treating the electromagnet is pulse effect on a thin linear antenna for various ratios between the pulse duration and antenna length.

      Green function for current induced by pulse electromagnetic field on thin infinite conductor in nonconducting medium is obtained. Approximalion formula for this function is given which has sufficient accuracy for applications in the entire range of argument variations. The dependence of amplitude current values on conductor orientation with respect to electromagnetic wave front plane is qualitatively investigated.