Furthermore, we will demonstrate the applicability and advantages of this cylindrical equivalent‐circuit FDTD method to evaluate new types of conformal ring antennas used in the context of high‐field (7T) traveling wave magnetic resonance imaging (MRI). As an FDTD package, it will be a lot more memory heavy than a FEM or MoM simulator, but RAM is cheap these days. ![]() We will address the special characteristics of a cylindrical FDTD mesh such as the mesh singularity at r = 0 and discuss how cylindrical subgrids for small radii can reduce the simulation time considerably. OpenEMS is a free FDTD (Finite Difference Time Domain) simulator suitable for a wide range of computational EM problems. SUMMARY In this paper, we present a free and open source platform by using the equivalent-circuit finite-difference timedomain (FDTD) method adapted to cylindrical coordinates to efficiently model cylindrically shaped objects. ![]() SUMMARYIn this paper, we present a free and open source platform by using the equivalent‐circuit finite‐difference time‐domain (FDTD) method adapted to cylindrical coordinates to efficiently model cylindrically shaped objects. ![]() ![]() OpenEMS – a free and open source equivalent‐circuit (EC) FDTD simulation platform supporting cylindrical coordinates suitable for the analysis of traveling wave MRI applications openEMS – a free and open source equivalent‐circuit (EC) FDTD simulation platform supporting.
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