Equilateral Triangular Slot Antenna for Communication System and GNSS RO Sensor of GAIA-I Microsatellite. - Asif Awaludin; Josaphat Tetuko Sri Sumantyo; Koichi Ito 003; Steven Gao; Achmad Munir; Mohd Zafri Baharuddin; Cahya Edi Santosa (IEICE Trans. Commun., 2018)