Numerical demonstration of non-reciprocal waveform-selective metasurfaces

H. Wakatsuchi

Numerical demonstration of non-reciprocal waveform-selective metasurfaces

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Author(s): H. Wakatsuchi¹
- Affiliations: 1: Department of Electrical and Mechanical Engineering , Nagoya Institute of Technology , Aichi 466-8555 , Japan
Source: Volume 55, Issue 6, 21 March 2019, p. 312 – 314
DOI: 10.1049/el.2018.8082 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 15/12/2018, Published 05/02/2019

The authors demonstrate two types of non-reciprocal waveform-selective metasurfaces that control the level of reflectance, depending not only on the direction of the incident wave but also on the waveform, namely, on the pulse width. A capacitor-based waveform-selective metasurface exhibits strong reflectance for a short pulse compared to that for a continuous wave (CW) at the same frequency. In contrast, an inductor-based waveform-selective metasurface more strongly reflects a CW than a pulse. The difference between them is demonstrated to be more than 50% but is reduced for a wave propagating in the other direction. The concept of the authors' structures is expected to offer an additional degree of freedom with which to design non-reciprocal devices and applications.

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Numerical demonstration of non-reciprocal waveform-selective metasurfaces

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