Characteristic mode analysis

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Characteristic Mode Analysis is a method used in electromagnetics to solve for currents and fields generated by a scattering object. The object can be any size or material.

When an electromagnetic wave is scattered by an object, currents are induced on said object, which subsequently re-radiate electromagnetic energy. The structure of the currents (and fields) are unique to the physical dimensions of the scatterer and incident frequency of radiation. From this perspective, a scatterer can be viewed as a parasitic antenna that radiates electromagnetic radiation in the same way as original incident wave was radiated.


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