Matthys M. Botha

Professor, Computational Electromagnetics

mmbotha@sun.ac.za | +27 21 808 4318 | EMACS Research Group


In 2002 I obtained a PhD from Stellenbosch University. The main focus was adaptive analysis for hybrid finite element-boundary integral methods. During 2003-2004 I was a post-doctoral research associate within the Department of Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign, USA. During 2008-2010 I worked at EM Software & Systems – S.A. (Pty) Ltd (now Altair), which develops the EM simulation software suite FEKO. In 2011 I joined the Department of Electrical and Electronic Engineering at Stellenbosch University. My research is in the field of computational electromagnetics (CEM) for high-frequency engineering applications.

Research work is focused on aspects of computational electromagnetics (CEM) — i.e. methods for the numerical solution of EM field problems. Typical applications of CEM include the modelling of microwave devices and antenna structures, as well as scattering analysis.

Interests

  • Weighted residual methods for CEM: Finite Element Method (FEM), Method of Moments (MoM)
  • Hybrid methods
  • A posteriori error estimation and adaptivity
  • Specialised quadrature schemes
  • Tailored integral equation methods for analysis of large arrays

2019

Journals

  1. FOURIE CJ, JACKMAN K, BOTHA MM, RAZMKHAH S, FEBVRE P, AYALA CL, XU Q, YOSHIKAWA N, PATRICK E, LAW M, WANG Y, ANNAVARAM M, BEEREL P, GUPTA S, NAZARIAN S, PEDRAM M. ColdFlux superconducting EDA and TCAD tools project: overview and progress. IEEE Transactions on Applied Superconductivity 2019; 29(5):1-7.
  2. NEL BAP, BOTHA MM. An Efficient MLACA-SVD Solver for Superconducting Integrated Circuit Analysis. IEEE Transactions on Applied Superconductivity 2019; 29(7):1-10.
  3. NEL BAP, BOTHA MM. MLACA With Modified Grouping Strategy for Efficient Superconducting Circuit Analysis. IEEE Transactions on Applied Superconductivity 2019; 29(5):1-5.

Conferences

  1. CHOSE M, BOTHA MM. Improvements to the Domain Green’s function method for antenna array analysis. 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Granada, Spain, IEEE 2019: 392-395.
  2. NEL BAP, BOTHA MM. Performance of MLACA with modified grouping for superconducting circuit analysis. 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Granada, Spain, IEEE 2019: 404-407.
  3. SEWRAJ K, BOTHA MM. Computation of MBF Reaction Matrices for Antenna Array Analysis, with a Directional Method. 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA), Granada, Spain, IEEE 2019: 385-389.

2018

2017 and earlier

Mailing address

Department of Electrical and Electronic Engineering, Stellenbosch University, Private Bag X1, Matieland 7602, Stellenbosch, South Africa

Physical address

Room E414, Department of Electrical and Electronic Engineering, Stellenbosch University, Cnr Banghoek Road & Joubert Street, Stellenbosch, 7600, South Africa. See /contact/ for a map.