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An asymptotic formula for the problem of diffraction by a strongly elongated body of revolution is constructed. Its uniform nature with respect to the parameter that characterizes the rate of elongation is demonstrated. The results are in good agreement with numerical simulations.

- Ivan Andronov
- The Journal of the Acoustical Society of America
- 2013

The problems of high-frequency scattering by prolate soft and hard spheroids with high aspect ratio are studied. The asymptotics of the diffracted field and the far field amplitude are derived under the assumption that the spheroid is strongly elongated; that is, the ratio of its length measured in wavelengths to the square of its transverse wave size is on… (More)

- Jean-Michel L. Bernard, Daniel Bouche, Ivan Andronov, Frédérik Guyon
- Annales des Télécommunications
- 2005

On considbre le problbme de la diffraction d'une onde glectromagn~tique par une perturbation locale des caractdristiques d'un rev~tement (ou inclusion). L'inclusion induit un champ diffractS, que l' on ddfinit comme la diffdrence entre le champ diffract( par l'objet avec inclusion et le champ diffractd par l'objet sans inclusion. On montre que le champ… (More)

- Ivan Andronov, Raj Mittra
- 2016 URSI International Symposium on…
- 2016

An asymptotic approach to high-frequency diffraction which yields uniform approximations with respect to the rate of elongation of the body is discussed in this work. The method is restricted in its application to shapes that are rotationally symmetric and are well approximated by second-order curves. Diffraction by a strongly elongated spheroid is examined… (More)

- Ivan Andronov, B. P. Belinskiy
- 2017 International Conference on Electromagnetics…
- 2017

The high-frequency asymptotic procedure developed for the diffraction by an elongated body is reduced to a mathematically correct boundary-value problem for a parabolic equation. The analogue of “time” η varies on an interval [−1, 1]. The problem is considered in the class of functions with not too singular behavior near η… (More)

- Daniel Bouche, Ivan Andronov, Marc Duruflé
- 2017 International Conference on Electromagnetics…
- 2017

The problem of high-frequency diffraction by a strongly elongated body is considered. The surface is supposed to be well approximated by a spheroidal surface. The asymptotic approximation for the induced currents is constructed by means of the parabolic equation method under the assumption that the wave-size of the body in the longitudinal direction is of… (More)

- Ivan Andronov, Daniel Bouche, N. Kirpichnikova, V. Philippov
- Annales des Télécommunications
- 1997

- Paul A. Mason, Gavin Ramsay, Ivan Andronov, Sergey V. Kolesnikov, Nickolay Shakhovskoy, Elana Pavlenko
- 2007

An analysis of X-ray and optical light curves of the magnetic cataclysmic variable (MCV) BY Cam is presented. This system is one of 3 MCVs in which the spin period of the white dwarf and the binary orbital period diier by 1%. As such thesèBY Cam' stars are important objects with which to probe the eld structure of the magnetic white dwarf and ultimately the… (More)

- Ivan Andronov, D. A. Shevnin
- 2017 International Conference on Electromagnetics…
- 2017

We study the errors of computations performed with the use of ANSYS HFSS package for the induced currents distribution on the surface of perfectly conducting spheroid axially illuminated by a plane electromagnetic wave. For the comparison we use special asymptotic approximation which is valid for the case of high-frequency diffraction by a strongly… (More)

- Ivan Andronov
- 2013 International Symposium on Electromagnetic…
- 2013

Diffraction of high-frequency electromagnetic wave by strongly elongated spheroids is studied. Previous results are generalized to the case of skew incidence.

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