Abstract
Electric Circuit Element (ECE) are special boundary conditions that enable a natural coupling between electromagnetic devices and circuits. ECE can be generalized to allow for parts on the domain boundary where absorbing boundary conditions can be set, to model the unbounded space. This paper illustrates the implementation of radiant ECE in the 2D and 3D-finite element method, for a full-wave time-harmonic field in dual frequency-domain E and H formulations. The weak formulations are implemented in the free environment Open Numerical Engineering LABoratory (onelab). The formulations are proven to be well-posed (existence, uniqueness and stability of the weak solution are proven) and validated for a monopole antenna.
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