“Comparison of a Circular Patch Unit Cell Performance for Reflector Applications Between Using FR4 and F4BMX220 Substrates at 3.5 GHz Frequency”. Jurnal Elektronika dan Telekomunikasi 23, no. 2 (December 31, 2023): 91–98. Accessed June 9, 2026. https://jurnalet.brin.go.id/jet/article/view/587.