TY - JOUR 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. JO - Sigma Journal of Engineering and Natural Sciences PY - 2025 VL - 43 SP - 878 EP - 886 DO - 10.14744/sigma.2025.00076 ER -