TI - High gain, low-profile, wideband archimedean spiral antenna with hexagonal fractal reflector surface AU - SAĞ, R.N. AU - TÜYLÜ, T. AU - ÇALIŞKAN, A. AU - TÜRKER TOKAN, N. SO - Sigma Journal of Engineering and Natural Sciences 2025;43:878-886. DO - 10.14744/sigma.2025.00076