Issue |
EPJ Appl. Metamat.
Volume 6, 2019
Metamaterials Research and Development in Japan
|
|
---|---|---|
Article Number | 23 | |
Number of page(s) | 10 | |
DOI | https://doi.org/10.1051/epjam/2019018 | |
Published online | 21 November 2019 |
https://doi.org/10.1051/epjam/2019018
Research Article
Broadband transmission-line illusions based on transformation electromagnetic
1
Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan
2
Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
* e-mail: sanada@ieee.org
Received:
30
August
2018
Accepted:
11
October
2019
Published online: 21 November 2019
We demonstrate broadband transmission-line illusions based on transformation electromagnetics at microwave frequencies by using the distributed full-tensor anisotropic medium. Due to an intrinsic nature of the non-resonant unit cell of the medium, the illusions operate from DC to an upper limit frequency where the homogeneous medium approximation holds. Two-dimensional groove and bump illusion media mimicking scattered waves by an original groove and a bump are designed. Their broadband and incident angle independent operations are confirmed by circuit simulations. The groove illusion medium is implemented on a dielectric substrate with microstrip-line technology, and it is confirmed experimentally by near-field measurements that the illusion medium well mimics scattered waves by the original groove in the broadband frequency range from 2.60 GHz to 4.65 GHz.
Key words: Electromagnetic illusion / transformation electromagnetics / metamaterials
© T. Nagayama and A. Sanada, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.