Edge-On Backscattering Enhancement Based on Quasi-Superdirective Reradiation

被引：13

作者：

Shang, Yuping ^{[1
]}

Xiao, Shaoqiu ^{[1
]}

Shen, Zhongxiang ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China

[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷

关键词：

Backscattering enhancement; superdirective reradiation; thin plate scattering; RCS ENHANCEMENT; REFLECTOR;

D O I：

10.1109/LAWP.2014.2368171

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 180 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.

引用

页码：539 / 542

页数：4

共 12 条

[1] A monopole superdirective array [J].

Altshuler, EE ;

O'Donnell, TH ;

Yaghjian, AD ;

Best, SR .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2005, 53 (08) :2653-2661

[2]

Bhattacharyya A.K., 1991, Radar Cross Section Analysis and Control

[3] Radar cross-section enhancement of dihedral corner reflector using fractal-based metallo-dielectric structures [J].

Chandran, A. R. ;

Gopikrishna, M. ;

Aanandan, C. K. ;

Mohanan, P. ;

Vasudevan, K. .

ELECTRONICS LETTERS, 2006, 42 (20) :1135-1137

[4] Design of Engineered Reflectors for Radar Cross Section Modification [J].

Doumanis, E. ;

Goussetis, G. ;

Papageorgiou, G. ;

Fusco, V. ;

Cahill, R. ;

Linton, D. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2013, 61 (01) :232-239

[5]

Fang LY, 2013, IEEE ANTENNAS PROP, P1066, DOI 10.1109/APS.2013.6711193

[6]

Hansen R. C., 2006, ELECT SMALL SUPERDIR

[7] PLATES AND EDGES [J].

KNOTT, EF ;

LIEPA, V ;

SENIOR, TBA .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1971, AP19 (06) :788-&

[8] Ground-plane-backed hemispherical luneberg-lens reflector [J].

Liang, Charles S. ;

Streater, Donald A. ;

Jin, Xan-Ming ;

Dunn, Eric ;

Rozendal, Timothy .

IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2006, 48 (01) :37-49

[9] RCS enhancement of flattened dihedral corner reflector using reflectarray approach [J].

Lipuma, D. ;

Meric, S. ;

Gillard, R. .

ELECTRONICS LETTERS, 2013, 49 (02) :152-153

[10]

Michelson D. G., 1993, THESIS U BRIT COLUMB

← 1 2 →