1. Department of Electrical and Computer EngineeringConcordia UniversityMontrealQuebecCanadaH3G 1M8
2. INRS, Université de QuébecMontrealQCCanadaH5A1K6
3. RF TechnologiesCommunications Research Centre Canada3701 Carling Avenue, P.O. Box 11490, Station HOttawaONCanadaK2H 8S2