Sensitivity analysis of a modular circularly polarized antenna array for 60 GHz band

In the paper, outputs of the sensitivity analysis performed for a 60 GHz circularly polarized antenna array are presented. The analysis identifies the dimensions and the positions of the coupling slots between the layers, the dimensions of the patches and the width of waveguides as critical. Precision of the manufacturing technologies has to be better than 0.1 mm to obtain acceptable parameters of the whole array.