Analysis of multiple vertical strips in planar geometries via DCIM-MoM

Abstract

Vertical metallizations in planar geometry, like via holes in MMICs, shorting strips, and probe feeds in microstrip antennas, have become the integral parts of high-frequency circuits and/or multifunction antennas. Therefore, an efficient full-wave electromagnetic simulation algorithm needs to be developed for the analysis of planar geometries with multiple vertical metallizations. In this study, it is demonstrated that using the method of moments (MoM) in conjunction with the discrete complex image method (DCIM) for the analysis of printed structures with multiple vertical strips results in a robust and efficient full-wave analysis tool. The use of DOM together with MoM has already proved to be very efficient for printed geometries, where efficiency implies the overall computational performance. However, the approach proposed here is not only efficient in this sense but also extremely efficient to handle multiple vertical metallization.