TY - JOUR TI - Estimating the performance of inter-connected square ring based flexible frequency selective surface which is insensıtıve to polarizatıon and oblique angles for EM shieldıng in wearable environment AU - VENKATESH, P. JO - Sigma Journal of Engineering and Natural Sciences PY - 2026 VL - 44 SP - 1903 EP - 1914 DO - 10.14744/sigma.2026.2071 ER -