A. Soltan Ali received the B.Sc. and M.Sc. degrees from the University of Cairo, Cairo, Egypt, in 2004 and 2008, respectively, and is currently working towards the Ph.D. degree in electronics and communication at Cairo University, Cairo, Egypt. He is currently working as a Teacher Assistant in Department of Electronics and Communications Engineering, Fayoum University, Fayoum, Egypt, since his graduation. His current research interests include the investigation of fractional circuits and systems, specifically in fractional order analog filters for signal processing. Also he is interested in the analog circuits with particular emphasis on current-mode approach, RF power amplifiers, and VCO.