Line waves are one-dimensional (1D) interface modes excited at the discontinuity between two reactive sheets of opposite sign, i.e., inductive and capacitive. Their inherent propagation confinement, low-losses and robustness towards imperfections are attractive characteristics that have recently pushed the efforts of the community in the field. Still, a straightforward procedure for designing guiding structures supporting this edge mode is not available. In this contribution, we describe a simple workflow for designing waveguides supporting 1D modes propagation. The workflow involves a proper combination of analytical tools and full-wave numerical simulations and allows quickly retrieving the final geometries of the complementary metasurfaces composing the waveguides. In addition, we discuss several layouts supporting line-wave propagation and compare their transmission performance. The results of the experimental measurements carried out on some manufactured prototypes are also reported to assess the effectiveness of the design approach and the suitability of line-wave waveguides for low-loss wave propagation.
Monti, A., Vellucci, S., Barbuto, M., Ramaccia, D., Verri, V., Vernì, F., et al. (2023). Line-wave waveguides: design procedure and performance comparison. In roceedings of the 17th European Conference on Antennas and Propagation (EuCAP). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE [10.23919/eucap57121.2023.10133060].
Line-wave waveguides: design procedure and performance comparison
Monti, A.;Vellucci, S.;Barbuto, M.;Ramaccia, D.;Toscano, A.;Bilotti, F.
2023-01-01
Abstract
Line waves are one-dimensional (1D) interface modes excited at the discontinuity between two reactive sheets of opposite sign, i.e., inductive and capacitive. Their inherent propagation confinement, low-losses and robustness towards imperfections are attractive characteristics that have recently pushed the efforts of the community in the field. Still, a straightforward procedure for designing guiding structures supporting this edge mode is not available. In this contribution, we describe a simple workflow for designing waveguides supporting 1D modes propagation. The workflow involves a proper combination of analytical tools and full-wave numerical simulations and allows quickly retrieving the final geometries of the complementary metasurfaces composing the waveguides. In addition, we discuss several layouts supporting line-wave propagation and compare their transmission performance. The results of the experimental measurements carried out on some manufactured prototypes are also reported to assess the effectiveness of the design approach and the suitability of line-wave waveguides for low-loss wave propagation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
