 The paper proposes a novel methodology for the analysis of variable angle tow, VAT, laminate structures using Reissner's mixed variational theorem, RMVT. This technique is applied to a Carrera unified formulation, CUF, finite element model to analyze the free vibration behavior of VAT plates. The proposed approach is compared to Abacus 3D reference solutions. Classical theories and literature results to investigate the effectiveness of the developed models. The results demonstrate that mixed theories provide the best approximation of the reference solution in all cases. This article was authored by Gaetano Junta, Domenico Andrea Ayanata, and Marco Montemuro.