Electromagnetic Field Computation by Network Methods

Network-oriented methods applied to electromagnetic field problems can contribute significantly to the problem formulation and solution methodology and to a reduction of computational effort and allow a systematic introduction of hybrid methods. In network theory systematic approaches for circuit analysis are based on the separation of the circuit into the connection network and the circuit elements. The connection network represents the topological structure of the circuit and contains only interconnects, including ideal transformers. Applying a network description, electromagnetic structures can be partitioned into subdomains, defining the circuit elements. The boundary surfaces between the subdomains define the interconnection network. Lumped element circuit models of electromagnetic structures can be obtained by analytic or numerical techniques.