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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00127835" target="_blank" >RIV/00216224:14310/22:00127835 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26220/22:PU144293

Výsledek na webu

<a href="https://doi.org/10.1109/ACCESS.2022.3166509" target="_blank" >https://doi.org/10.1109/ACCESS.2022.3166509</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ACCESS.2022.3166509" target="_blank" >10.1109/ACCESS.2022.3166509</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

This paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective flattened 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 degrees 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 degrees, 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 degrees.

Název v anglickém jazyce

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

Popis výsledku anglicky

This paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective flattened 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 degrees 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 degrees, 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 degrees.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Access

ISSN

2169-3536

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

41097-41111

Kód UT WoS článku

000785632000001

EID výsledku v databázi Scopus

2-s2.0-85128290779