Bifunctional Luneburg-Eaton Lens Fabricated of 3-D-Printed Anisotropic Medium

Xianlei Li; Gao Wei; Siyuan Lei; Kangkang Han; Tiancheng Qiu; Guoqi Zhang; Yuhang Zhou

doi:10.1109/LAWP.2022.3171777

Bifunctional Luneburg-Eaton Lens Fabricated of 3-D-Printed Anisotropic Medium

Xianlei Li, Gao Wei, Siyuan Lei, Kangkang Han, Tiancheng Qiu, Guoqi Zhang, Yuhang Zhou

School of Electronics and Information

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Luneburg lens (LL) and Eaton lens (EL) are well known as optical and microwave components. This letter proposes a bifunctional Luneburg-Eaton lens (LEL) fabricated by three-dimensional (3-D)-printed anisotropic medium. The spherical LEL is designed as a LL for incident vertical polarization and as an EL for incident horizontal polarization through the use of anisotropic dielectric. In order to realize a good continuous refractive index, the proposed lens structure is divided into many cells, and the equivalent permittivity of each unit is calculated by using the equivalent media theory. The prototype of LEL is designed and excited by X-band waveguide WR-90, and the ideal results are achieved. The gain of the antenna is from 15.7 to 16.4 dBi in X-band with the LEL functioning as a LL, and the waveguide can have a beam deflection of set angle with the LEL functioning as an EL.

Original language	English
Pages (from-to)	1462-1466
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	21
Issue number	7
DOIs	https://doi.org/10.1109/LAWP.2022.3171777
State	Published - 1 Jul 2022

Keywords

anisotropic medium
bifunctional device
Luneburg-Eaton lens (LEL)
Three-dimensional (3-D)-printing

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10.1109/LAWP.2022.3171777

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title = "Bifunctional Luneburg-Eaton Lens Fabricated of 3-D-Printed Anisotropic Medium",

abstract = "Luneburg lens (LL) and Eaton lens (EL) are well known as optical and microwave components. This letter proposes a bifunctional Luneburg-Eaton lens (LEL) fabricated by three-dimensional (3-D)-printed anisotropic medium. The spherical LEL is designed as a LL for incident vertical polarization and as an EL for incident horizontal polarization through the use of anisotropic dielectric. In order to realize a good continuous refractive index, the proposed lens structure is divided into many cells, and the equivalent permittivity of each unit is calculated by using the equivalent media theory. The prototype of LEL is designed and excited by X-band waveguide WR-90, and the ideal results are achieved. The gain of the antenna is from 15.7 to 16.4 dBi in X-band with the LEL functioning as a LL, and the waveguide can have a beam deflection of set angle with the LEL functioning as an EL.",

keywords = "anisotropic medium, bifunctional device, Luneburg-Eaton lens (LEL), Three-dimensional (3-D)-printing",

author = "Xianlei Li and Gao Wei and Siyuan Lei and Kangkang Han and Tiancheng Qiu and Guoqi Zhang and Yuhang Zhou",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2022",

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doi = "10.1109/LAWP.2022.3171777",

language = "英语",

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T1 - Bifunctional Luneburg-Eaton Lens Fabricated of 3-D-Printed Anisotropic Medium

AU - Li, Xianlei

AU - Wei, Gao

AU - Lei, Siyuan

AU - Han, Kangkang

AU - Qiu, Tiancheng

AU - Zhang, Guoqi

AU - Zhou, Yuhang

PY - 2022/7/1

Y1 - 2022/7/1

N2 - Luneburg lens (LL) and Eaton lens (EL) are well known as optical and microwave components. This letter proposes a bifunctional Luneburg-Eaton lens (LEL) fabricated by three-dimensional (3-D)-printed anisotropic medium. The spherical LEL is designed as a LL for incident vertical polarization and as an EL for incident horizontal polarization through the use of anisotropic dielectric. In order to realize a good continuous refractive index, the proposed lens structure is divided into many cells, and the equivalent permittivity of each unit is calculated by using the equivalent media theory. The prototype of LEL is designed and excited by X-band waveguide WR-90, and the ideal results are achieved. The gain of the antenna is from 15.7 to 16.4 dBi in X-band with the LEL functioning as a LL, and the waveguide can have a beam deflection of set angle with the LEL functioning as an EL.

AB - Luneburg lens (LL) and Eaton lens (EL) are well known as optical and microwave components. This letter proposes a bifunctional Luneburg-Eaton lens (LEL) fabricated by three-dimensional (3-D)-printed anisotropic medium. The spherical LEL is designed as a LL for incident vertical polarization and as an EL for incident horizontal polarization through the use of anisotropic dielectric. In order to realize a good continuous refractive index, the proposed lens structure is divided into many cells, and the equivalent permittivity of each unit is calculated by using the equivalent media theory. The prototype of LEL is designed and excited by X-band waveguide WR-90, and the ideal results are achieved. The gain of the antenna is from 15.7 to 16.4 dBi in X-band with the LEL functioning as a LL, and the waveguide can have a beam deflection of set angle with the LEL functioning as an EL.

KW - anisotropic medium

KW - bifunctional device

KW - Luneburg-Eaton lens (LEL)

KW - Three-dimensional (3-D)-printing

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M3 - 文章

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VL - 21

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 7

ER -

Bifunctional Luneburg-Eaton Lens Fabricated of 3-D-Printed Anisotropic Medium

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