Abstract-A subcell model for thin wires in the finite-difference time-domain (FDTD) method using modified telegraphers equations has been developed by Holland et al. In this paper we present an extension of their algorithm, which allows arbitrarily located and oriented wires with respect to the Cartesian grid. This is important to be able to accurately model wires that cannot be aligned to the Cartesian grid, e.g. tilted wires and circular loop wires. A symmetric coupling between field and wires yields a stab…
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