Influence of Planar Material Size and Position on Shielding Effectiveness Measurements using the Dual Waveguide Method

The dual waveguide method for shielding effectiveness measurements is a very effective and practical method, as it can provide reliable results quickly and in a wide frequency range. However, when it comes to planar materials, the size and position of the sample is critical. Different sizes and shapes of the sample need to be tested in order to determine the one that provides reliable results. Furthermore, the position of the sample along the waveguide, as well as its distance from the source, using different lengths of waveguides, need to be investigated. In this paper, these two parameters are studied in order to examine their effect on the results.