Slim Luneburg lens for antenna applications

被引：90

作者：

Demetriadou, Angela ^{[1
,2
]}

Hao, Yang ^{[2
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England

[2] Univ London, London E1 4NS, England

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 21期

关键词：

RESONATOR ANTENNA; GAIN ENHANCEMENT; METAMATERIAL; APODIZATION; REFRACTION; DESIGN; CAVITY; INDEX;

D O I：

10.1364/OE.19.019925

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Luneburg lens is a marvellous optical lens but is extremely difficult to be applied in any practical antenna system due to its large spherical shape. In this paper, we propose a transformation that reduces the profile of the original Luneburg lens without affecting its unique properties. The new transformed slim lens is then discretized and simplified for a practical antenna application, where its properties were examined numerically. It is found that the transformed lens can be used to replace conventional antenna systems (i.e. Fabry-Perot resonant antennas) producing a high-directivity beam with low side-lobes. In addition, it provides excellent steering capabilities for wide angles, maintaining the directivity and side-lobes at high and low values respectively. (C) 2011 Optical Society of America

引用

页码：19925 / 19934

页数：10

共 27 条

[1] A Radially-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks [J].

Argyropoulos, Christos ;

Zhao, Yan ;

Hao, Yang .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2009, 57 (05) :1432-1441

[2] Analysis and design of a cylindrical EBG-based directive antenna [J].

Boutayeb, H ;

Denidni, TA ;

Mahdjoubi, K ;

Tarot, AC ;

Sebak, AR ;

Talbi, L .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2006, 54 (01) :211-219

[3] An electromagnetic bandgap resonator antenna [J].

Cheype, C ;

Serier, C ;

Thèvenot, M ;

Monédière, T ;

Reineix, A ;

Jecko, B .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2002, 50 (09) :1285-1290

[4]

Feresidis A., 2007, INT C EL ADV APPL, P165

[5] High gain planar antenna using optimised partially ref lective surfaces [J].

Feresidis, AP ;

Vardaxoglou, JC .

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 2001, 148 (06) :345-350

[6] Array thinning by using antennas in a Fabry-Perot cavity for gain enhancement [J].

Gardelli, Renato ;

Albani, Matteo ;

Capolino, Filippo .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2006, 54 (07) :1979-1990

[7] Intrinsic apodization effect in a compact two-mirror system with a spherical primary mirror [J].

Goncharov, AV ;

Owner-Petersen, M ;

Puryayev, DT .

OPTICAL ENGINEERING, 2002, 41 (12) :3111-3115

[8] Phase-induced amplitude apodization of telescope pupils for extrasolar terrestrial planet imaging [J].

Guyon, O .

ASTRONOMY & ASTROPHYSICS, 2003, 404 (01) :379-387

[9] Antenna-beam shaping from offset defects in UC-EBG cavities [J].

Hao, Y ;

Alomainy, AH ;

Parini, CG .

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2004, 43 (02) :108-112

[10] Gradient-index meniscus lens free of spherical aberration [J].

Ilinsky, R .

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 2000, 2 (05) :449-451

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