Wideband Circularly-Polarized Hexagonal SIW Cavity-Backed Slot Antenna With Enhanced Bandwidth and Compact Design. - Vahid Sarani; Esraa Mousa Ali; Milad Shariatifar; Bal S. Virdee; Dion Mariyanayagam; Nasr Rashid; Mohammad Alibakhshikenari; Mariana Dalarsson (IEEE Access, 2025)