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Metamateriały elektromagnetyczne

Hausman Sławomir

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

2019

nr 6

137--138

Electromagnetic metamaterials are artificially engineered composites with designed properties not present in nature. Their applications range from reduced size antennas to invisibility cloaks.

Trapped mode resonances in metalo-dielectric structures with electric asymmetry materials

Rotaru M.D., Sykulski J.K.

Archives of Electrical Engineering

2011

Vol. 60, nr 1

85-93

This paper investigates the possibility of exciting high quality trapped resonant modes on frequency selective surfaces consisting of identical sub-wavelength metallic inclusions (symmetrically split rings) with no structural asymmetry but exhibitting electrical asymmetry. The electrical symmetry is broken by using different dielectric substrates. The existence of such anti-symmetric trapped mode on geometrical symmetric structure is demonstrated through numerical simulation. Numerical results suggest that the high quality factor observed for these resonant modes is achieved via weak coupling between the "trapped modes" and free space which enables the excitation of these modes.