TY - JOUR AB - Purpose– The purpose of this paper is to study the extraction of scattering parameters (SPs) from simple structures on a printed circuit board (PCB) by the finite difference time domain (FDTD) method with the aid of a surface impedance boundary condition (SIBC).Design/methodology/approach– The incorporation of SIBC into the FDTD method is described for the general case. The excitation of a field problem by a field pattern and the transition from the field solution to a circuit representation by SPs is discussed.Findings– SPs obtained by FDTD with SIBC are validated with semi‐analytic solutions and compared with results obtained by different numerical methods. Results of a microstrip with a discontinuity considering losses are presented demonstrating the capability of the present method.Originality/value– The comparison of numerical results obtained by different methods demonstrates the capability of the present method to extract SPs from PCBs very efficiently. VL - 28 IS - 4 SN - 0332-1649 DO - 10.1108/03321640910959134 UR - https://doi.org/10.1108/03321640910959134 AU - Hollaus Karl AU - Bíró Oszkár AU - Matzenauer Gernot AU - Stockreiter Christian AU - Weiß Bernhard AU - Caldera Peter AU - Paoli Gerhard ED - Oszkár Bíró David A. Lowther ED - Piergiorgio Alotto PY - 2009 Y1 - 2009/01/01 TI - Extraction of circuit parameters from PCB by FDTD and SIBC T2 - COMPEL - The international journal for computation and mathematics in electrical and electronic engineering PB - Emerald Group Publishing Limited SP - 1091 EP - 1101 Y2 - 2024/04/24 ER -