Sabri, Siti Nur Idayu, and Rahmat Sanudin. “Investigation of PIN Diode Characteristics for Wireless Communication Application”. Evolution in Electrical and Electronic Engineering, vol. 2, no. 2, Nov. 2021, pp. 140-7, https://penerbit.uthm.edu.my/periodicals/index.php/eeee/article/view/3409.