The team members of this research were Abdullah Atalar, Mehmet Ali Tan (now principal analog design engineer at Microsemi, CA), Satılmış Topçu (now Assist Prof at Bilkent), Mustafa Çelik (founder and president of Extreme DA, CA, which was acquired by Synopsys in 2011), Ogan Ocalı (founder of Ocali Inc, known for Tgi3D product), Murat Alaybeyi (now a fellow of Cadence), Cemal Dikmen (now CTO of SS8 Networks), Mustafa N. Yazgan (now software engineer at Google, CA), Suat Ekinci (now at lead design engineer at ASELSAN).
This group has developed a number of programs and subroutines in this area. Most of the methods developed are based on the asymptotic waveform evaluation method. This research and the research group were inspired by the visit of Prof. Dr. Ronald A. Rohrer from the Department of Electrical and Computer Enginnering of the Carnegie-Mellon University to the Department of Electrical and Electronics Engineering of Bilkent University and his series of seminars there on the circuit simulation, back in the summer of 1989.
This group produced 5 journal papers, 2 conference papers, 2 Ph.D. dissertations and 3 Master’s theses, 2 software programmes and a library of subroutines on this area. The research activity of this CAD research group has been supported by TUBITAK under the grant no EEEAG-24 with the title Developing Simulation Programs for VSLI Circuits.
Publications
The journal publications made by this CAD group are
- Satilmis Topçu, Ogan Ocali, Abdullah Atalar, and Mehmet Ali Tan “A new method for nonlinear circuit simulation in time domain: NOWE,” IEEE Trans. on Computer-Aided Design of Integrated Circuits and Systems, in print.
- Mustafa Çelik, Ogan Ocali, Mehmet Ali Tan, and Abdullah Atalar “Transient Analysis of Nonlinear Circuits by Combining Asymptotic Waveform Evaluation with Volterra Series” IEEE Trans. Circuits and Systems-I, vol. 42, pp. 470-473, 1995.
- Mustafa Çelik, Abdullah Atalar, and Mehmet Ali Tan “A new method for the steady-state analysis of periodically excited nonlinear circuits,” IEEE Trans. on Circuits and Systems-Part I: Fundamental Theory and Applications, submitted for publication..
and conference papers published and presented are
- C. T. Dikmen , M. M. Alaybeyi, S. Topçu, A. Atalar, E. Sezer, M. A. Tan, R. A. Rohrer, “Piecewise linear aymptotic waveform evaluation for transient simulation of electronic circuits,” in Proc. of the Int. Symp. on Circuits and Systems 1991 (ISCAS ’91), 854-857, Singapore, 1991.
- M. Celik, O. Ocali, M. A. Tan, and A. Atalar “Improving awe accuracy using multipoint Padè approximation,” in Proc. of Int. Symp. Circuits & Systems 1994 ( ISCAS ’94) , pp. 1.379–1.382, London, UK, May 30-June 2 1994.
Software Developed
In this project two software programmes, PLAWE mostly by Satilmis Topcu and NOWE by Ogan Ocali, have been developed. Also a library of subroutines SIMLIB has been created in C++ mostly by Mustafa N. Yazgan. PLAWE is a circuit simulation programme for the circuits with piecewise linear elements. NOWE is a circuit simulation program for linear and nonlinear circuits with continuous models. PLAWE from ftp://ftp.bilkent.edu.tr/pub/Local/EESoftware/plawe.tar, NOWE from ftp://ftp.bilkent.edu.tr/pub/Local/EESoftware/nowe.tar, and SIMLIB fromftp://ftp.bilkent.edu.tr/pub/Local/EESoftware/simlib.tar can be all retrieved by anonymous ftp.
Ph.D. Dissertations
The Ph.D. dissertations created by this research are
- Satilmis Topçu, PLAWE: A Piecewise Linear Circuit Simulation using Asymptotic Waveform Evaluation. Ph.D. Dissertation, Bilkent University, Bilkent, Ankara, July 1994.
- Mustafa Çelik, Fast Algorithms for Linear and Nonlinear Microwave Circuit Simulation. Ph.D. Dissertation, Bilkent University, Bilkent, Ankara, July 1994.
Master Theses
The Master’s theses created by this research are
- M. Murat Alaybeyi, BUSTLE: A New Circuit Simulation Tool Master’s thesis, Bilkent University, Bilkent, Ankara, July 1990.
- Cemal Tamer Dikmen, BUSTLE: A New Circuit Simulation Tool using Asymptotic Waveform Evalution and Piece-wise Linear Approach Master’s thesis, Bilkent University, Bilkent, Ankara, July 1990.
- Mustafa N. Yazgan, Design and implementation of library functions for electronic circuit simulation, Master’s thesis, Bilkent University, Bilkent, Ankara, September 1994.