Analogies with physical phenomena indicate that modulation of a material or geometrical parameter of a periodic structure enriches its original band structure. The present work aims to provide an insight into the band-splitting phenomenon in the case of commensurate modulation for a parallel-plate waveguide technology-based geometry. A modulated one-dimensional parallel-plate waveguide signal integrity structure is numerically analysed to exhibit the appearance of band splitting and new bandgaps. The modulation mechanism has a potential in dispersion engineering, as it allows controlling the number and position of the electromagnetic bandgaps and the in-band characteristics of the field propagation. Generation of modes with negative group velocities for a given frequency band is also achievable by this technique.

Band pattern of commensurate modulated periodic structures / De Sabata, Aldo; Matekovits, Ladislau; Lipan, Ovidiu. - In: IET MICROWAVES, ANTENNAS & PROPAGATION. - ISSN 1751-8725. - ELETTRONICO. - 11:9(2017), pp. 1303-1307. [10.1049/iet-map.2017.0053]

Band pattern of commensurate modulated periodic structures

MATEKOVITS, Ladislau;
2017

Abstract

Analogies with physical phenomena indicate that modulation of a material or geometrical parameter of a periodic structure enriches its original band structure. The present work aims to provide an insight into the band-splitting phenomenon in the case of commensurate modulation for a parallel-plate waveguide technology-based geometry. A modulated one-dimensional parallel-plate waveguide signal integrity structure is numerically analysed to exhibit the appearance of band splitting and new bandgaps. The modulation mechanism has a potential in dispersion engineering, as it allows controlling the number and position of the electromagnetic bandgaps and the in-band characteristics of the field propagation. Generation of modes with negative group velocities for a given frequency band is also achievable by this technique.
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Descrizione: Band pattern of commensurate modulated periodic structures
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2678530
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