Abstract
Spatial coordinate transformations can be used in the design of electromagnetic devices with unconventional and exotic behavior. However, their realizations are generally limited by the complex material properties that are required. In this paper, the coordinate transformation technique is employed to successfully design two field tapering devices. 2D continuous models are presented that confirm the desired field tapering functionality for the targeted microwave frequency band. Next, a scheme that utilizes a method of parameter reduction to simplify the complicated tensors produced by the conventional coordinate transformation technique is applied to one of the taper designs. A two-step procedure is introduced to simplify the tensor properties of the material by eliminating non-diagonal components. Furthermore, the resulting permittivity and permeability distributions for the taper device are calculated and presented.
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