Abstract
The distribution of the electromagnetic field in a waveguide or slit is generally dependent on its shape and size. In this paper, we develop a general method to arbitrarily control the electromagnetic field through metamaterials, of which permittivity and/or permeability can be designed to continuously change from negative to positive values. With this method, the field distribution in a two-dimensional arbitrarily shaped waveguide or slit is totally dependent on the electromagnetic properties of metamaterials filled inside, but not on its shape or size. Permittivity and permeability of the metamaterials are derived, and transmission properties in the waveguide and slit are validated by numerical simulation. Results show that the field distribution inside the waveguide and slit can be easily controlled by the metamaterials. It provides a feasible way to control the electromagnetic field distribution.
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Li, T., Yang, J., Huang, M. et al. Arbitrary control of the electromagnetic field in two-dimensional waveguide and slit using metamaterials. Appl. Phys. A 105, 509–515 (2011). https://doi.org/10.1007/s00339-011-6505-y
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DOI: https://doi.org/10.1007/s00339-011-6505-y