Title :
Restricting the computational domain in FDTD-modeling of three-dimensional problems with axial symmetry
Author :
Pazynin, V.L. ; Sirenko, Y.K.
Author_Institution :
Inst. of Radiophys. & Electron., Acad. of Sci., Kharkov
Abstract :
The paper considers the computation of non-stationary radiation in electrodynamic stuctures with circular symmetry using the finite-difference time-domain (FDTD) method. There is proposed a new kind of exactly absorbing boundary condition (ABC) at a spherical boundary which is usable in Cartesian coordinates. Realization and testing of this ABC were carried out in a problem of radiation of the axisymmetric pulse antenna fed by a coaxial cable
Keywords :
antenna theory; axial symmetry; finite difference time-domain analysis; Cartesian coordinates; FDTD model; absorbing boundary condition; axial symmetry; axisymmetric pulse antenna; coaxial cable feed; computational domain; electrodynamic stucture; nonstationary radiation; spherical boundary; three-dimensional problem; Antenna feeds; Boundary conditions; Coaxial cables; Conductors; Electrodynamics; Finite difference methods; Grid computing; Steady-state; Testing; Time domain analysis;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946768
