Publication detail

Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization

KADĚRA, P. SÁNCHEZ-PASTOR, J. ESKANDARI, H. TYC, T. SAKAKI, M. SCHÜßLER, M. JAKOBY, R. BENSON, N. JIMÉNEZ-SÁEZ, A. LÁČÍK, J.

Original Title

Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective attened Luneburg lens for wide-angle millimeter-wave radio-frequency indoor localization. The maximum detection angle and radar cross-section (RCS) are investigated, including an impedance matching layer (IML) between the lens antenna and the free-space environment. The 3D QCTO Luneburg lenses are fabricated in alumina by lithography-based ceramic manufacturing, a 3D printing process. The manufactured structures have a diameter of 29.9 mm (4 lambda_0), showing a maximum realized gain of 16.51 dBi and beam steering angle of +-70° at 40 GHz. The proposed QCTO Luneburg lens with a metallic reflective layer achieves a maximum RCS of -20.05 dBsqm at 40 GHz with a wide-angle response over +-37°, while the structure with an IML between the lens and air improves these values to a maximum RCS of -15.78 dBsqm and operating angular response between +-50°.

Keywords

Transformaton optics; Luneburg lens; impedance matching; lens antenna; retrorefleector; ceramic 3D printing; indoor localization; mm-wave; artificial dielectrics; chipless RFID

Authors

KADĚRA, P.; SÁNCHEZ-PASTOR, J.; ESKANDARI, H.; TYC, T.; SAKAKI, M.; SCHÜßLER, M.; JAKOBY, R.; BENSON, N.; JIMÉNEZ-SÁEZ, A.; LÁČÍK, J.

Released

11. 4. 2022

Publisher

IEEE

Location

PISCATAWAY

ISBN

2169-3536

Periodical

IEEE Access

Year of study

10

Number

1

State

United States of America

Pages from

41097

Pages to

41111

Pages count

15

URL

https://ieeexplore.ieee.org/document/9755166

Full text in the Digital Library

http://hdl.handle.net/11012/204159

BibTex

@article{BUT177562,
  author="Petr {Kaděra} and Jesús {Sánchez-Pastor} and Hossein {Eskandari} and Tomáš {Tyc} and Masoud {Sakaki} and Martin {Schüßler} and Rolf {Jakoby} and Niels {Benson} and Alejandro {Jiménez-Sáez} and Jaroslav {Láčík}",
  title="Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization",
  journal="IEEE Access",
  year="2022",
  volume="10",
  number="1",
  pages="41097--41111",
  doi="10.1109/ACCESS.2022.3166509",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/9755166"
}