Construction and transformation of impedance grids for the scalar analysis of the axisymmetric waveguides and radiators in the time domain

The procedures of the electrodynamical analysis of the axisymmetric devices based on quasi static definition and combination of the LC-circuits for 12 TEM waveguide, crossing the elementary grid volume, with borders in cylindrical coordinate system are described. For the axisymmetric devices the three-dimensional (3D) LC-grid transforms into the 2D LC-grid in radial cross section of devices with the subsequent transition to a flat R-grid. The algorithm of the analysis of these grids is mastered in the professional program TAMIC-R-H, ensuring operation in time domain with grids having more than 10/sup 7/ elements.