Computational electromagnetics

Full-wave solvers built on in-house MoM, MLFMA, FEM, and FDTD codes — including the multiple-precision MLFMA that resolved a long-standing accuracy-vs-efficiency problem and earned a national dissertation award.

I build and use full-wave electromagnetic solvers across the major formulations — method of moments, the multilevel fast multipole algorithm, finite elements, and FDTD — largely on in-house codes. My doctoral contribution, multiple-precision MLFMA, gave error-controlled accuracy across very wide bandwidths.

More recently I have co-developed machine-learning-accelerated integral-equation solvers that retain physics-based accuracy while cutting computation time for electrically large structures.

In-house MoM / MLFMA / FEM / FDTD / UTD codes
Multiple-precision, error-controlled MLFMA
ML-accelerated integral-equation solvers

Related journal publications

E. Koç, M. Kalfa, S. E. Doğan, and V. B. Ertürk, "A novel highly parallelizable machine-learning-based method for the fast solution of integral equations for electromagnetic scattering problems," IEEE Trans. Antennas Propag., early access, 2025.
M. Kalfa, Ö. Ergül, and V. B. Ertürk, "Multiple-precision arithmetic implementation of the multilevel fast multipole algorithm," IEEE Trans. Antennas Propag., vol. 72, pp. 11–21, 2024.
M. Kalfa, V. B. Ertürk, and Ö. Ergül, "Error analysis of MLFMA with closed-form expressions," IEEE Trans. Antennas Propag., vol. 69, pp. 6618–6623, 2021.
M. Kalfa, Ö. Ergül, and V. B. Ertürk, "Error control of multiple-precision MLFMA," IEEE Trans. Antennas Propag., vol. 66, pp. 5651–5656, 2018.
M. Kalfa and V. B. Ertürk, "Analysis of slotted sectoral waveguide arrays with multilayered radomes," IEEE Trans. Antennas Propag., vol. 64, pp. 800–805, 2016.
M. S. Akyuz, V. B. Ertürk, and M. Kalfa, "Closed-form Green's function representations for mutual coupling calculations between apertures on a PEC circular cylinder covered with dielectric layers," IEEE Trans. Antennas Propag., vol. 59, pp. 3094–3098, 2011.

Related conference proceedings

E. Koç, M. Kalfa, and V. B. Ertürk, "A novel machine-learning-based method for the fast solution of integral equations for electromagnetic scattering problems," in IEEE AP-S/INC-USNC-URSI Radio Science Meeting, 2024.
M. Kalfa, V. B. Ertürk, and Ö. Ergül, "Error control of MLFMA within a multiple-precision arithmetic framework," in IEEE AP-S/URSI National Radio Science Meeting, 2018. Honorable Mention + Travel Grant
M. Kalfa, Ş. Karan, and V. B. Ertürk, "Analysis of cylindrically conformal antennas using closed-form Green's function representations," in 9th European Conference on Antennas and Propagation (EuCAP), 2015.
M. Kalfa and V. B. Ertürk, "Analysis of slotted sectoral waveguide array antennas with multilayer radomes and nonzero metal thickness," in USNC-URSI Radio Science Meeting (with AP-S Symposium), 2015.
M. Kalfa and V. B. Ertürk, "Design and analysis of slotted sectoral waveguide array antennas embedded in cylindrically stratified media," in USNC-URSI Radio Science Meeting (with AP-S Symposium), 2014.
M. Kalfa and V. B. Ertürk, "Analysis of slotted sectoral waveguide antenna arrays embedded in cylindrically stratified media," in URSI National Assembly, 2014. Best Paper Award
M. Kalfa and V. B. Ertürk, "Derivation of Green's function representations for the analysis of sectoral waveguides embedded in cylindrically stratified media," in USNC-URSI Radio Science Meeting (with AP-S Symposium), 2013.
M. Kalfa and V. B. Ertürk, "Analysis of slotted sectoral waveguides embedded in cylindrically stratified media using closed-form Green's function representations," in USNC-URSI Radio Science Meeting (with AP-S Symposium), 2013.