Ritesh Sachan Devi Charan Dhubkarya Photonic Bandgap Hepta-Band Stacked Microstrip Antenna for L, S and C Band Applications. 1913-1931 2021 116 Wirel. Pers. Commun. 3 https://doi.org/10.1007/s11277-020-07771-8 db/journals/wpc/wpc116.html#SachanD21