A combined Method of Moment (MoM)/Genetic Algorithm\ud (GA) numerical procedure for multi-frequency patch antenna design is\ud presented in this paper. MoM is applied to analyse rectangular patches\ud fed by a coaxial probe and suspended over a ground plane. The impedance\ud matrix of such a mother structure is, then, manipulated by a GA\ud optimisation procedure in order to detect the optimal patch shape\ud matching the required frequency properties. GA adoption enables optimal\ud shape detection among all the possible shapes allowed by the\ud mother structure dimensions and discretization, without having to examine\ud the whole shape set derived from the mother structure. In order to\ud show the GA synthesis capabilities, a design example of a dual band\ud patch is then presented

The computational design of a high throughput chemical vapor deposition (CVD) reactor to deposit silicon films is here presented. The reactor is characterized by a multichannel hot wall structure, atmospheric operation, and an alternated feeding of reactants from the two reactor sides to ensure the maximum consumption of precursors while keeping an acceptable film thickness uniformity. Particular care was ensured in developing an inlet/exhaust design to uniformly distribute/exhaust the reactants and byproducts through the different channels of the reactor.

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