Low profile multiband microstrip patch antenna with frequency reconfigurable feature using PIN diode for S, C, X, and Ku band applications. - Sunil P. Lavadiya; Vishal Sorathiya; Sunny Kanzariya; Bhavik Chavda; Ahmad Naweed; Osama S. Faragallah; Mahmoud M. A. Eid; Ahmed Nabih Zaki Rashed (Int. J. Commun. Syst., 2022)