Estimation of capacity between the truncated cone and the metal plate by method of moments

We present a method for the evaluation of the capacitance and charge distribution between the metallic truncated cone of finite length with bottom and the grounded metallic plate. The estimation of capacitance and charge distribution is carried out using the method of moments (MoM) based on pulse function as the basis function and point matching for testing. The matrix elements to be inverted in the solving process are found by dividing the surfaces of the truncated cone and the metallic plate into subsections. The capacitance and the charge distribution are derived from the inverse matrix. Numerical results on the capacitance and charge distribution between the metallic truncated cone of finite length with bottom and the grounded metallic plate are compared with the experimental data.