1. Department of Electrical Engineering; National Institute of Telecommunications (Inatel); Santa Rita do Sapucaí Brazil
2. Department of Electrical Engineering; Federal University of Paraná (UFPR); Curitiba Brazil
3. Programa Institucional de Fomento a la I+D+i; Universidad Tecnológica Metropolitana; Santiago Chile
4. Department of Electrical and Electronics Engineering; Federal University of Santa Catarina (UFSC); Florianópolis Brazil
5. Graduate Program in Electrical and Computer Engineering (CPGEI); Federal University of Technology-Paraná (UTFPR); Curitiba Brazil