Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 64, Issue 7, Pages 3233-3238Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2016.2560901
Keywords
Artificial neural network (ANN); macromodel; nonlinear circuits; time-domain integral equation (TDIE); transient analysis
Funding
- Hong Kong University Grants Committee Areas of Excellence [AoE/PC04/08]
- Research Grants Council of Hong Kong [711511, 712612, GRF 716713, GRF 17207114, GRF 17210815]
- National Natural Science Foundation of China [61271158]
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A novel transient field-circuit simulation method based on the time-domain integral equation (TDIE) and circuit macromodels is proposed. The traditional field-circuit simulation process constructs Kirchoff's equations for linear or nonlinear lumped circuits, which cannot handle problems with unknown circuit structure. The proposed method creates parametric behavior macromodels to represent the port constitutive relations of the circuits. Artificial neural network technique is adopted to estimate the model parameters based on the known port voltages and currents. Then, the obtained macromodel is coupled with TDIE that describes the behavior of electromagnetic subsystem to form the equations of a whole system, which can be solved to obtain the fields, voltages, and currents. Numerical examples are presented to demonstrate the validity of the proposed method.
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