Abstract
In this letter, a novel numerical technique is applied to the analysis of printed antennas. The technique transforms the first-kind electric-field integral equation (EFIE) into a regularized second-kind equation, via extraction of two singular frequency-independent operators and their numerical inversion. Two options are presented in which the inversion is based on the eigenfunctions of these singular operators, that appear to be a generalization of the TM and TE modes of a magnetic-wall cavity, coupled by the edge singularities. The example of application shows favorable convergence properties.
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