Inductance calculation of 3D superconducting structures with ground plane

An inductance calculation method, which is based on calculating the current distribution of a fluxoid-trapped superconducting loop by using the expres sion of momentum and the Maxwell equations, is reconstructed to enable calc ulation of arbitrary 3D structures which have a ground plane (GP). Calculat ion of the mutual inductances of the superconductor system is also incorpor ated into the algorithm. The method of images is used to save computational resources, and the mirror plane is demonstrated to be just at the effectiv e penetration depth below the upper boundary of the GP. The algorithm offer s accurate results with reasonable calculation time.