The results of our studies towards the design of a metasurface able to make an antenna either invisible or visible depending on the waveform of the impinging signal are discussed. To achieve this goal, a conventional metasurface is loaded with a lumped-element circuit able to dynamically transform the behaviour of the metasurface from an invisibility cloak to a perfect electric conductor when the impinging signal switches from a pulse (PW) to a continuous (CW) wave, respectively. First, the waveform-selective cloaking principle of operation is investigated and discussed. Then, the design of the circuit is shown and its time-domain response to different waveforms explained. The proposed configuration paves the way to the design of reconfigurable cloaking devices, further expanding the application fields of reconfigurable metasurfaces.
Vellucci, S., Toscano, A., Bilotti, F., Monti, A., Barbuto, M. (2018). Towards waveform-selective cloaking devices exploiting circuit-loaded metasurfaces. In 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings (pp.1861-1862). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE.
Towards waveform-selective cloaking devices exploiting circuit-loaded metasurfaces
Vellucci, S
Writing – Original Draft Preparation
;Toscano, ASupervision
;Bilotti, FSupervision
;Monti, AMembro del Collaboration Group
;Barbuto, MMembro del Collaboration Group
2018-01-01
Abstract
The results of our studies towards the design of a metasurface able to make an antenna either invisible or visible depending on the waveform of the impinging signal are discussed. To achieve this goal, a conventional metasurface is loaded with a lumped-element circuit able to dynamically transform the behaviour of the metasurface from an invisibility cloak to a perfect electric conductor when the impinging signal switches from a pulse (PW) to a continuous (CW) wave, respectively. First, the waveform-selective cloaking principle of operation is investigated and discussed. Then, the design of the circuit is shown and its time-domain response to different waveforms explained. The proposed configuration paves the way to the design of reconfigurable cloaking devices, further expanding the application fields of reconfigurable metasurfaces.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
