Antenna on chip (AoC) design using metasurface and SIW technologies for THz wireless applications

Althuwayb, Ayman Abdulhadi, Alibakhshikenari, Mohammad, Virdee, Bal Singh, Benetatos, Harry, Falcone, Francisco and Limiti, Ernesto (2021) Antenna on chip (AoC) design using metasurface and SIW technologies for THz wireless applications. Electronics, 10 (9). pp. 1-8. ISSN 2079-9292

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Official URL: https://doi.org/10.3390/electronics10091120

Abstract / Description

This paper presents the design of a high-performance 0.45–0.50 THz antenna on chip (AoC) for fabrication on a 100-micron GaAs substrate. The antenna is based on metasurface and substrate integrated waveguide (SIW) technologies. It is constituted from seven stacked layers consisting of copper patch–silicon oxide–feedline–silicon oxide–aluminium–GaAs–copper ground. The top layer consists of a 2 x 4 array of rectangular metallic patches with a row of subwavelength circular slots to transform the array into a metasurface. This essentially enlarges the effective aperture area of the antenna. The antenna is excited using a coplanar waveguide feedline that is sandwiched between the two silicon oxide layers below the patch layer. The proposed antenna structure reduces substrate loss and surface waves. The AoC has dimensions of 0.8 x 0.8 x 0.13 mm3. The results show that the proposed structure greatly enhances the antenna’s gain and radiation efficiency, and this is achieved without compromising its physical size. The antenna exhibits an average gain and efficiency of 6.5 dBi and 65%, respectively, which makes it a promising candidate for emerging terahertz applications.

Item Type: Article
Uncontrolled Keywords: antenna on chip (AoC); metasurface; terahertz (THz); substrate integrated waveguide (SIW); gallium arsenide (GaAs)
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Depositing User: Bal Virdee
Date Deposited: 13 May 2021 09:17
Last Modified: 13 May 2021 09:17
URI: http://repository.londonmet.ac.uk/id/eprint/6636

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