Edge-on backscattering enhancement based on quasi-superdirective reradiation

A concept based on superdirective reradiation is presented for the sake of backscattering enhancement of a thin conducting plate at edge-on incidence. A passive structure consisting of a thin plate loaded with two conducting posts is proposed to demonstrate the concept. Through properly choosing the...

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Main Authors: Shen, Zhongxiang, Shang, Yuping, Xiao, Shaoqiu
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2015
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Online Access:https://hdl.handle.net/10356/107410
http://hdl.handle.net/10220/25459
http://dx.doi.org/10.1109/LAWP.2014.2368171
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1074102019-12-06T22:30:26Z Edge-on backscattering enhancement based on quasi-superdirective reradiation Shen, Zhongxiang Shang, Yuping Xiao, Shaoqiu School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio A concept based on superdirective reradiation is presented for the sake of backscattering enhancement of a thin conducting plate at edge-on incidence. A passive structure consisting of a thin plate loaded with two conducting posts is proposed to demonstrate the concept. Through properly choosing the heights of two posts and the spacing between them, it is observed that the induced surface currents on the two loaded posts are almost 180º out of phase. An obvious enhancement of backscattering can then be obtained as a result of the quasi-superdirective reradiation produced by induced currents on the two loaded posts with each post height shorter than a quarter-wavelength. The induced current distribution is explained by virtue of the image method. Relatively small dimensions of the loaded posts make the design concept appropriate to the backscattering enhancement for airborne applications. The agreement between simulated and measured results validates our design. Accepted version 2015-04-28T01:00:08Z 2019-12-06T22:30:26Z 2015-04-28T01:00:08Z 2019-12-06T22:30:26Z 2014 2014 Journal Article Shang, Y., Xiao, S., & Shen, Z. (2014). Edge-on backscattering enhancement based on quasi-superdirective reradiation. IEEE antennas and wireless propagation letters, 14, 539-542. 1536-1225 https://hdl.handle.net/10356/107410 http://hdl.handle.net/10220/25459 http://dx.doi.org/10.1109/LAWP.2014.2368171 en IEEE antennas and wireless propagation letters © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [Article DOI: http://dx.doi.org/10.1109/LAWP.2014.2368171]. 4 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
Shen, Zhongxiang
Shang, Yuping
Xiao, Shaoqiu
Edge-on backscattering enhancement based on quasi-superdirective reradiation
description A concept based on superdirective reradiation is presented for the sake of backscattering enhancement of a thin conducting plate at edge-on incidence. A passive structure consisting of a thin plate loaded with two conducting posts is proposed to demonstrate the concept. Through properly choosing the heights of two posts and the spacing between them, it is observed that the induced surface currents on the two loaded posts are almost 180º out of phase. An obvious enhancement of backscattering can then be obtained as a result of the quasi-superdirective reradiation produced by induced currents on the two loaded posts with each post height shorter than a quarter-wavelength. The induced current distribution is explained by virtue of the image method. Relatively small dimensions of the loaded posts make the design concept appropriate to the backscattering enhancement for airborne applications. The agreement between simulated and measured results validates our design.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Shen, Zhongxiang
Shang, Yuping
Xiao, Shaoqiu
format Article
author Shen, Zhongxiang
Shang, Yuping
Xiao, Shaoqiu
author_sort Shen, Zhongxiang
title Edge-on backscattering enhancement based on quasi-superdirective reradiation
title_short Edge-on backscattering enhancement based on quasi-superdirective reradiation
title_full Edge-on backscattering enhancement based on quasi-superdirective reradiation
title_fullStr Edge-on backscattering enhancement based on quasi-superdirective reradiation
title_full_unstemmed Edge-on backscattering enhancement based on quasi-superdirective reradiation
title_sort edge-on backscattering enhancement based on quasi-superdirective reradiation
publishDate 2015
url https://hdl.handle.net/10356/107410
http://hdl.handle.net/10220/25459
http://dx.doi.org/10.1109/LAWP.2014.2368171
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