1. Graduate Program in Electrical Engineering, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil
2. Federal Institute of Education Science and Technology of Minas Gerais (IFMG), Campus Ibirité, Ibirité 32407-190, MG, Brazil
3. Institute of Polymers and Composites, University of Minho (Uminho), Campus Azurém, 4800-058 Guimarães, Portugal
4. Department of Electrical Engineering, Universidade Federal de Minas Gerais, Belo Horizonte 31270-000, MG, Brazil