Electromagnetic boundaries with PEC/PMC equivalence

The most general electromagnetic boundary, deflned by linear and local boundary conditions, is deflned in terms of conditions which can be called generalized impedance boundary conditions. Requiring that the boundary be equivalent to PEC and PMC boundaries for its two eigen- plane waves, which property is known to exist for many of its special cases, it is shown that the recently introduced Generalized Soft-and-Hard/DB (GSHDB) boundary is the most general boundary satisfying this property.

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