Paper Abstract and Keywords |
Presentation |
2014-09-19 16:25
[Invited Lecture]
Extraordinary Transmission Phenomena by Dirac Cone Metasurfaces Shotaro Nagai, Takashi Matsumoto, Atsushi Sanada (Yamaguchi Univ.) AP2014-107 MW2014-98 Link to ES Tech. Rep. Archives: MW2014-98 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Extraordinary transmission phenomena of a Dirac cone metasurface consisting of a two-dimensional array of unit cells each with metallic patches and a connecting via are investigated experimentally. A metasurface having a Dirac cone with a non-zero group velocity at the Γ-point in the Brillouin zone is designed at the V-band, and the dispersion characteristics of the guided wave along the metasurface are obtained by angle dependency measurements of the transmittance of the metasurface. It is shown that the designed metasurface has the Dirac cone with the Γ-point frequency of 62.1 GHz. It is also confirmed by transmittance measurements that the metasurface exhibits the extraordinary transmission with the maximum transmittance enhancement of 1.4 dB at the Γ-point. Near-field measurements on the metasurface are also carried out, and it is shown by the Fresnel-Kirchhoff transformation that the transmitted wave has the narrow radiation pattern with the 3-dB beam width of ±1.7 deg in the E-plane. In addition, time-domain measurements reveal that the transmitted wave contains a decaying component that is originated by reradiation from the metasurface, leading the fact that the reradiating waves play a significant role in the extraordinary transmission phenomena. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Metamaterials / Metasurfaces / Dirac cone / Extraordinary transmissions / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 219, MW2014-98, pp. 71-76, Sept. 2014. |
Paper # |
MW2014-98 |
Date of Issue |
2014-09-11 (AP, MW) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
AP2014-107 MW2014-98 Link to ES Tech. Rep. Archives: MW2014-98 |
Conference Information |
Committee |
AP MW |
Conference Date |
2014-09-18 - 2014-09-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tokyo Institute of Technology, Ookayama Campus |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave and Millimeter-wave, Metamaterials, Antennas and Propagation, Student Session |
Paper Information |
Registration To |
MW |
Conference Code |
2014-09-AP-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Extraordinary Transmission Phenomena by Dirac Cone Metasurfaces |
Sub Title (in English) |
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Keyword(1) |
Metamaterials |
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Metasurfaces |
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Dirac cone |
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Extraordinary transmissions |
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1st Author's Name |
Shotaro Nagai |
1st Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
2nd Author's Name |
Takashi Matsumoto |
2nd Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
3rd Author's Name |
Atsushi Sanada |
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Yamaguchi University (Yamaguchi Univ.) |
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Speaker |
Author-1 |
Date Time |
2014-09-19 16:25:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
AP2014-107, MW2014-98 |
Volume (vol) |
vol.114 |
Number (no) |
no.218(AP), no.219(MW) |
Page |
pp.77-82(AP), pp.71-76(MW) |
#Pages |
6 |
Date of Issue |
2014-09-11 (AP, MW) |
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