Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Y.V. Gandel"'
Publikováno v:
IEEE Transactions on Antennas and Propagation. 61:4981-4989
Using the recently developed method based on the rigorous theory of singular and hypersingular integral equations (IEs) and Nystrom-type discretization, a paraboloidal reflector assisted with a conical shield is investigated. To decrease the computat
Publikováno v:
IEEE Transactions on Antennas and Propagation. 60:4710-4718
Time-harmonic electromagnetic wave diffraction by a perfectly electrically conducting (PEC) finite rotationally symmetric surface located in free space is investigated. The problem is split to independent azimuth orders and reduced to the sets of cou
Autor:
Y.V. Gandel
Publikováno v:
Journal of Mathematical Sciences. 171:74-88
We consider boundary-value problems of mathematical diffraction theory and discuss the possibility of reducing them to boundary hypersingular integral equations and solving them numerically. The analytic technique of parametric representations of pse
Autor:
Oleksiy Kononenko, Y.V. Gandel
Publikováno v:
International Journal of Infrared and Millimeter Waves. 28:267-274
For the first time rigorous theory is developed for eigen traveling TM modes in the resonator of the coaxial cavity gyrotron with a corrugated insert. This mathematical model can be applied for any corrugation parameters and wavelengths. Gyrotron sim
Autor:
Y.V. Gandel, A.A. Nosich
Publikováno v:
IEEE Transactions on Antennas and Propagation. 55:399-406
Numerical method for modeling the E-polarized wave scattering by electrically large quasioptical two-dimensional (2-D) reflectors is presented. Reflectors are assumed zero-thickness and perfectly electrically conducting. Efficient numerical solution
Autor:
Y.V. Gandel, T. Thumvongskul, V. V. Kamyshan, Akimasa Hirata, Toshiyuki Shiozawa, G.I. Zaginaylov, O. P. Kamyshan
Publikováno v:
IEEE Transactions on Plasma Science. 30:1151-1159
The full-wave analysis based on the singular integral equation method is developed to correctly investigate dispersion properties and field distributions inside a rectangular waveguide grating used in low-voltage traveling wave amplifiers. Simplified
Autor:
Y.V. Gandel, V.D. Dushkin
Publikováno v:
2012 Proceedings of the International Conference Days on Diffraction.
Mathematical models of 2D electrodynamic wave diffraction and 3D scalar diffraction problems are the external boundary-value problems for the Helmholtz equation with boundary conditions of the first, second or third kind on the boundary surfaces. One
Publikováno v:
2011 MICROWAVES, RADAR AND REMOTE SENSING SYMPOSIUM.
A problem of time-harmonic electromagnetic wave diffraction by a perfectly electrically conducting (PEC) finite surface of rotation located in a free space is investigated. The problem is split to independent azimuthal orders and reduced to sets of h
Publikováno v:
IEEE AP-S International Symposium
IEEE AP-S International Symposium, Jun 2009, Charleston, United States. 4 p
IEEE AP-S International Symposium, Jun 2009, Charleston, United States. 4 p
A full-wave numerical study of 2-D models of dual-reflector omnidirectional ADE (axially-displaced ellipse subreflector and parabolic main reflector, Fig. 1a) and PACO (parabolic subreflector and conical/corner reflector, Fig. 1b) antennas is perform
Publikováno v:
2008 38th European Microwave Conference.
In this paper we perform full-wave two-dimensional (2-D) simulation of the e-polarized beam wave guidance and scattering by a chain of four finite-size reflectors and mirrors modelling a typical fragment of quasioptical feeding circuit of a deep-spac