Publication detail

Gradient-Index-Based Frequency-Coded Retroreflective Lenses for mm-Wave Indoor Localization

KADĚRA, P. JIMÉNEZ-SÁEZ, A. BURMEISTER, T. LÁČÍK, J. SCHÜßLER, M. JAKOBY, R.

Original Title

Gradient-Index-Based Frequency-Coded Retroreflective Lenses for mm-Wave Indoor Localization

Type

journal article in Web of Science

Language

English

Original Abstract

This article introduces retroreflective lenses for millimeter-wave radio-frequency indoor localization. A three-dimensional (3D) gradient-index Luneburg lens is employed to increase radar cross section (RCS) of photonic-crystal high-Q resonators and its performance is compared to conventional radar retroreflectors. A classic Luneburg lens with and without a reflective layer is realized with 25 mm diameter (6.7 lambda(0)), showing a realized gain of 24.6 dBi and a maximum RCS of -9.22 dBm(2) at 80 GHz. The proposed Luneburg lens with embedded high-Q resonators as frequency-coded particles in a photonic crystal structure, operating as a reflective layer, achieved a maximum RCS of -15.84 dBm(2) at the resonant frequency of 76.5 GHz and showed a repeatable response each 18 degrees over +/- 36 degrees in two perpendicular planes. With this high RCS of the Luneburg lens, a maximum readout range of 1.3 m could be achieved compared to 0.15 m without the lens at 76.5 GHz for the same transmit power, receiver sensitivity, and gain of the reader antenna.

Keywords

Gradient-index; luneburg lens; retroreflective lens; retroreflector; photonic crystal; chipless RFID; indoor localization; mmWave; RCS enhancement; artificial dielectric

Authors

KADĚRA, P.; JIMÉNEZ-SÁEZ, A.; BURMEISTER, T.; LÁČÍK, J.; SCHÜßLER, M.; JAKOBY, R.

Released

23. 11. 2020

Publisher

IEEE

Location

PISCATAWAY

ISBN

2169-3536

Periodical

IEEE Access

Year of study

8

Number

1

State

United States of America

Pages from

212765

Pages to

212775

Pages count

11

URL

https://ieeexplore.ieee.org/document/9266792

Full text in the Digital Library

http://hdl.handle.net/11012/196473

BibTex

@article{BUT165725,
  author="Petr {Kaděra} and Alejandro {Jiménez-Sáez} and Tom {Burmeister} and Jaroslav {Láčík} and Martin {Schüßler} and Rolf {Jakoby}",
  title="Gradient-Index-Based Frequency-Coded Retroreflective Lenses for mm-Wave Indoor Localization",
  journal="IEEE Access",
  year="2020",
  volume="8",
  number="1",
  pages="212765--212775",
  doi="10.1109/ACCESS.2020.3039986",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/9266792"
}