Design and Implementation of Single-Layer 4 × 4 and 8 × 8 Butler Matrices for Multibeam Antenna Arrays

George A. AdamidisIoannis O. VardiambasisMelina P. IoannidouTheodoros N. Kapetanakis2024-06-172024-06-172019https://dspace.iee.ihu.gr/handle/123456789/10195http://orcid.org/0000-0003-3594-7678Design and Implementation of Single-Layer 4 × 4 and 8 × 8 Butler Matrices for Multibeam Antenna ArraysInternational Journal of Antennas and Propagationjournal-article