SCATTERING ANALYSIS OF E-PLANE UNIFORM DIELECTRIC POSTS IN RECTANGULAR WAVEGUIDES

Based on the polarization current integral equation with the modified Green s function as kernel, the scattering properties of the E-plane uniform dielectric posts in rectangular waveguides are numerically analyzed by moment method. These posts are of arbitrary in cross-stction and post-number. The calculation accuracy and speed are remarkably improved by segmentating the dielectric region into many small rectangular cells and applying local analytic integration. The higher-order modes are considered in calculation. It improves the computation accuracy and can provide the scattering information of all excited modes.