Othman, A. R, A. H Hamidon, M.N Husain, M.S Johal, and A.B Ibrahim. 2011. “Wideband 5.8 GHz Radio Frequency Amplifier With 3 DB Π- Network Attenuator Isolation”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 3 (1):1-6. https://jtec.utem.edu.my/jtec/article/view/397.