High performance antenna-on-chip inspired by SIW and metasurface technologies for THz band operation
Fecha
2023Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
Impacto
|
10.1038/s41598-022-27364-8
Resumen
In this paper, a high-performance antenna-on-chip (AoC) is implemented on gallium arsenide (GaAs)
wafer based on the substrate integrated waveguide (SIW) and metasurface (MTS) technologies for
terahertz band applications. The proposed antenna is constructed using fve stacked layers comprising
metal-GaAs-metal-GaAs-metal. The conductive electromagnetic radiators are implemented on the
upper si ...
[++]
In this paper, a high-performance antenna-on-chip (AoC) is implemented on gallium arsenide (GaAs)
wafer based on the substrate integrated waveguide (SIW) and metasurface (MTS) technologies for
terahertz band applications. The proposed antenna is constructed using fve stacked layers comprising
metal-GaAs-metal-GaAs-metal. The conductive electromagnetic radiators are implemented on the
upper side of the top GaAs layer, which has a metallic ground-plane at its underside. The metallic
feedline is implemented at the underside of the bottom GaAs layer. Dual wrench-shaped radiators are
framed by metallic vias connected to the ground-plane to create SIW cavity. This technique mitigates
the surface waves and the substrate losses, thereby improving the antenna’s radiation characteristics.
The antenna is excited by a T-shaped feedline implemented on the underside of the bottom GaAs
substrate layer. Electromagnetic (EM) energy from the feedline is coupled to the radiating elements
through the circular and linear slots etched in the middle ground-plane layer. To mitigate the surfacewave interactions and the substrate losses in the bottom GaAs layer, the feedline is contained inside a
SIW cavity. To enhance the antenna’s performance, the radiators are transformed into a metamaterialinspired surface (i.e., metasurface), by engraving periodic arrangement of circular slots of subwavelength diameter and periodicity. Essentially, the slots act as resonant scatterers, which control
the EM response of the surface. The antenna of dimensions of 400× 400 × 8 μm3
is demonstrated to
operate over a wide frequency range from 0.445 to 0.470THz having a bandwidth of 25GHz with an
average return-loss of− 27 dB. The measured average gain and radiation efciency are 4.6 dBi and
74%, respectively. These results make the proposed antenna suitable for AoC terahertz applications. [--]
Materias
Hhigh-performance antenna-on-chip,
Substrate integrated waveguide,
Metasurface technologies,
Gallium arsenide
Editor
Springer
Publicado en
Scientific Reports (2023) 13(1), 1-13
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
Dr. Mohammad Alibakhshikenari acknowledges support from the CONEX-Plus programme funded by Universidad Carlos III de Madrid and the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 801538. This work was supported by Ministerio de Ciencia, Innovación y Universidades, Gobierno de España (Agencia Estatal de Investigación, Fondo Europeo de Desarrollo Regional -FEDER-, European Union) under the research grant PID2021-127409OB-C31 CONDOR.