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- O. M. Dumin, V. A. Katrich, Y. A. Koltunov, I. V. Neroda
- 2013 IX Internatioal Conference on Antenna Theory…
- 2013

The main stage of solution of the structure-statistical object classification problem for remote sensing is the construction of probability distribution law on the base of probability learning sample. The structure of the solution of the problem includes the following five problems: the algorithm of construction of initial approximation of iterative process… (More)

—The approximate analytical solution of the integral equation concerning the current in a thin straight vibrator with complex surface impedance has been obtained. The vibrator is located in unlimited space and is excited in an arbitrary point along its length. The calculations have been made and the plots of electrodynamic characteristics of the vibrator,… (More)

- M. V. Nesterenko, D. Yu. Penkin, V. A. Katrich, V. M. Dakhov, V. N. Karazin
- 2010

—The problem about the electrical current distribution along thin radial impedance monopole, located on the perfectly conducting sphere, has been solved in a rigorous electrodynamic formulation in the paper. The problem formulation strictness is provided by the use of the Green's function for the Hertz's vector potential for unbounded space outside the… (More)

- M. V. Nesterenko, V. A. Katrich, S. L. Berdnik, Y. M. Penkin, V. M. Dakhov, V. N. Karazin +1 other
- 2010

—The authors suggest the generalized method of induced electromotive forces (EMF) for the investigation of the characteristics of single and systems of thin impedance vibrators at their arbitrary excitation and distribution of the surface impedance on the ground of the made analysis in the proposed paper. The distinctive peculiarity of this method is the… (More)

- Dmitry Yu. Penkin, Victor A. Katrich, Yuriy M. Penkin, Mikhail V. Nesterenko, Victor M. Dakhov, Sergey L. Berdnik
- 2015

—A problem of the spherical antenna consisting of a thin radial monopole located on a perfectly conducting sphere is solved. The antenna is excited at the base by a voltage δ-generator. An approximate analytical solution of the integral equation for the current on a thin impedance vibrator was found by the method of successive iterations. The solution is… (More)

A semi-analytical model for current estimation on a thin complex-impedance-based monopole, mounted on a perfectly conducting sphere and fed in an arbitrary point of its aperture is proposed. By applying the current thus obtained, the electromagnetic fields excited by the antenna system are determined. The influence of an impedance coating and a feeding… (More)

- M. V. Nesterenko, V. A. Katrich, Y. M. Penkin, S. L. Berdnik, V. I. Kijko, V. N. Karazin +1 other
- 2011

—The problem of excitation of electromagnetic fields by a material body of finite dimensions in presence of coupling hole between two arbitrary electrodynamic volumes is formulated. The problem is reduced to two-dimensional integral equations for the surface electric current on a material body and the equivalent magnetic current on a coupling hole. A… (More)

- S. L. Berdnik, V. A. Katrich, M. V. Nesterenko, Yu M. Penkin, S. V. Pshenichnaya
- 2016 IEEE International Conference on…
- 2016

The problem of electromagnetic wave excitation by a vibrators system with variable distributed surface impedance located in free space is solved by the generalized method of induced electromotive forces (EMF). The characteristics of three-element and multi-element Yagi-Uda antennas with variable impedance vibrators are calculated.

- Yu M. Penkin, S. L. Berdnik, V. A. Katrich, M. V. Nesterenko
- 2016 XXIst International Seminar/Workshop on…
- 2016

The energy characteristics of the junction consisting of two perpendicular crossed infinite rectangular waveguides coupling through a narrow slot are studied. A transverse slot cut in the wide wall of the first waveguide coincides with the similar slot orientated along a longitudinal axis of the second waveguide. A dielectric insert is allocated in the… (More)