Asdesach Zena Markos
Research and Teaching Assistant at the Department of High Frequency Engineering, University of Kassel
Universität Kassel, Fachgebiet Hochfrequenztechnik (HFT), Wilhelmshöher Allee 73, 34121, Kassel, Germany. Tel. + 49 561 804 6528, Fax. -6529, Email: firstname.lastname@example.org.
Working towards a PhD dissertation on: Analysis, design and efficiency enhancement of GaN power amplifiers for wireless communication application.
Experiences in Research, Teaching & Industry:
Analysis, design and realization of power amplifiers for 3G wireless communication applications.
Efficiency enhancement of GaN power amplifiers using Doherty technique.
Small- and large-signal characterization of microwave circuits.
Tutorial classes and practical trainings in microwave engineering courses (transmission line theory and microwave integrated circuits).
Supervising masters thesis and project works of ECE students.
M. Sc. in electrical communication engineering (Apr. 2002-Sep. 2004), from the University of Kassel, Germany. Masters thesis: Design and simulation of power amplifier with minimum memory effect for UMTS Application.
B. Sc. in electrical engineering (Sep. 1996 - Jul. 2001), from Bahirdar University, Ethiopia. Thesis: Implementation of voice over local area network (LAN).
A. Z. Markos and G. Kompa, "A High Power Doherty Amplifier Design for UMTS Application," Proc. of the 2008 German Microwave Confernece (GeMiC-2008), Hamburg, Germany, 2008.
E. R. Srinidhi, R. Ma, A. Z. Markos, and G. Kompa, "Optimization of Broadband Drain Modulation in GaN HEMT Devices Measurment," IEEE Proc. of Radio and Wirless Confrence Sym (RWS), pp. 81-84, Orlando, FL, USA, 2008.
A. Z. Markos, P. Colantonio, F. Giannini, R. Giofre, M. Imbimbo, and G. Kompa, "A 6W Uneven Doherty Amplifier in GaN Technology," Proc. of the 2nd European Microwave Integrated Circuits (EuMIC), pp. 299-302, Munich, Germany, 2007. Best Paper Award.
A. Z. Markos and G. Kompa, "A 2.6W AlGaN/GaN Based Symmetrical Doherty Amplifier Design," Proc. of the 1st TARGET Days, Frascati, Italy, 2006.
B. Bunz, A. Z. Markos, A. Ahmed, and G. Kompa, "Linearization of High Power Amplifier with Optimized Zone 0 Terminations," Proc. of the 2006 German Microwave Conference (GeMiC-2006), Karlsruhe, Germany, 2006.
A. Z. Markos and G. Kompa, "Design and Simulation of Power Amplifier with Minimum Memory Effect for UMTS Application," Proc. of the 2nd International Conference in Electrical and Computer Engineering, Bahirdar, Ethiopia 2005.