Metal disc-type splitter with radially placed gratings for terahertz surface waves

J. Shibayama; J. Yamauchi; H. Nakano

Metal disc-type splitter with radially placed gratings for terahertz surface waves

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Author(s): J. Shibayama ¹ ; J. Yamauchi ¹ ; H. Nakano ¹
- Affiliations: 1: Faculty of Science and Engineering, Hosei University, 3-7-2, Kajino-cho, Koganei, Tokyo 184-8584, Japan
Source: Volume 51, Issue 4, 19 February 2015, p. 352 – 353
DOI: 10.1049/el.2014.4331 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 11/12/2014, Published 05/02/2015

A novel way to split terahertz (THz) surface waves is presented on the basis of propagation characteristics of spoof surface plasmon polaritons. Metal disc-type splitters with a centre hole and radially placed gratings are proposed and analysed using the finite-difference time-domain (FDTD) method in cylindrical co-ordinates. Numerical results demonstrate that the discs act as bi- and multi-directional THz surface wave splitters with large coupling regions, the frequency of which is selected by grating structures.

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Metal disc-type splitter with radially placed gratings for terahertz surface waves

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