Space-Time-Varying Surface-Wave Antenna
Space-Time-Varying Surface-Wave Antenna
As of today, the application of space-time modulated media has been limited to parametric amplification, nonreciprocity, and frequency mixing. This article exhibits the functionality of the space-time modulated medium as a surface-wave antenna and demonstrates that a space-time modulated medium makes a perfect antenna. We first present the analytical solution for electromagnetic fields inside a space-time modulated medium. The analytical solution reveals the existence of surface-waves in such a medium as well as their temporal and spatial frequencies. We next introduce the concept of space-time surface-wave antenna system, where the transition of space-wave to surface-wave is utilized for a pure signal receive. The analytical solution is supported by FDTD numerical simulation of the medium, which gives a more in-depth insight into the analysis of the structure. The study is expected to pave the way for further study on the application of space-time media in antenna systems.
Taravati, Sajjad
0026f25d-c919-4273-b956-8fe9795b31ce
Kishk, Ahmed A.
07e319d7-6a6d-4f10-9656-4cb11e63e25c
10 December 2018
Taravati, Sajjad
0026f25d-c919-4273-b956-8fe9795b31ce
Kishk, Ahmed A.
07e319d7-6a6d-4f10-9656-4cb11e63e25c
Taravati, Sajjad and Kishk, Ahmed A.
(2018)
Space-Time-Varying Surface-Wave Antenna.
In Proceedings - ANTEM 2018: 2018 18th International Symposium on Antenna Technology and Applied Electromagnetics.
vol. 2018-August,
IEEE..
(doi:10.1109/ANTEM.2018.8573041).
Record type:
Conference or Workshop Item
(Paper)
Abstract
As of today, the application of space-time modulated media has been limited to parametric amplification, nonreciprocity, and frequency mixing. This article exhibits the functionality of the space-time modulated medium as a surface-wave antenna and demonstrates that a space-time modulated medium makes a perfect antenna. We first present the analytical solution for electromagnetic fields inside a space-time modulated medium. The analytical solution reveals the existence of surface-waves in such a medium as well as their temporal and spatial frequencies. We next introduce the concept of space-time surface-wave antenna system, where the transition of space-wave to surface-wave is utilized for a pure signal receive. The analytical solution is supported by FDTD numerical simulation of the medium, which gives a more in-depth insight into the analysis of the structure. The study is expected to pave the way for further study on the application of space-time media in antenna systems.
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Published date: 10 December 2018
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© 2018 IEEE.
Venue - Dates:
18th International Symposium on Antenna Technology and Applied Electromagnetics, ANTEM 2018, , Waterloo, Canada, 2018-08-19 - 2018-08-22
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Local EPrints ID: 482660
URI: http://eprints.soton.ac.uk/id/eprint/482660
PURE UUID: 0399999f-af21-41fc-9bf9-690016518327
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Date deposited: 11 Oct 2023 16:48
Last modified: 17 Mar 2024 05:04
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Author:
Sajjad Taravati
Author:
Ahmed A. Kishk
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