In most microwave heating applications obtaining uniform heating patterns in certain regions of the applicator is a key issue. In this paper, the proposed solution for achieving electric field uniformity consists of designing the configuration of the feeding system in a multimode cavity by means of genetic algorithms. The feeding system is constituted by waveguides or slots arrays. The electric field pattern inside the cavity depends on the location of these sources and an improvement in the electric field uniformity on the product can be obtained by means of a proper design of this feeding system. Results for the curing of epoxy resin over a marble slab are presented and they show a significant improvement in the electric field uniformity over the epoxy resin.
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Tortajada et al. (2007) studied this question.
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