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Study on Improvement of the Performance Parameters of a Novel 0.41-0.47 THz On-Chip Antenna Based on Metasurface Concept Realized on 50um GaAs-Layer

Alibakhshikenari, Mohammad; Virdee, Bal. S.; See, Chan H.; Shukla, Pancham; Salekzamankhani, Shahram; Abd-Alhameed, Raed; Falcone, Francisco; Limiti, Ernesto


Mohammad Alibakhshikenari

Bal. S. Virdee

Pancham Shukla

Shahram Salekzamankhani

Raed Abd-Alhameed

Francisco Falcone

Ernesto Limiti


A feasibility study is presented on the performance parameters of a novel on-chip antenna based on metasurface technology at terahertz band. The proposed metasurface on-chip antenna is constructed on an electrically thin high-permittivity gallium arsenide (GaAs) substrate layer. Metasurface is implemented by engraving slot-lines on an array of 11×11 circular patches fabricated on the top layer of the GaAs substrate and metallic via-holes implemented in the central patch of each row constituting the array, which connects the patch to the leaky-wave open-ended feeding slot-lines running underneath the patches. The slot-lines are connected to each other with a slit. A waveguide port is used to excite the array via slot-lines that couple the electromagnetic energy to the patches. The metasurface on-chip antenna is shown to exhibit an average measured gain in excess of 10 dBi and radiation efficiency above 60% over a wide frequency range from 0.41 THz to 0.47 THz, which is significant development over other on-chip antenna techniques reported to date. Dimensions of the antenna are 8.6×8.6×0.0503 mm3. The results show that the proposed GaAs-based metasurface on-chip antenna is viable for applications in terahertz integrated circuits.

Journal Article Type Article
Acceptance Date Jun 16, 2020
Online Publication Date Jul 3, 2020
Publication Date Jul 3, 2020
Deposit Date Jun 16, 2020
Publicly Available Date Jul 3, 2020
Electronic ISSN 2045-2322
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 10
Issue 1
Article Number 11034
Keywords Terahertz (THz), on-chip antenna, metasurface, wide bandwidth, gallium arsenide (GaAs) layer, leaky-wave open-ended feeding slot-lines
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Study On Improvement Of The Performance Parameters Of A Novel 0.41-0.47 THz On-Chip Antenna Based On Metasurface Concept Realized On 50um GaAs-Layer (published version) (5.7 Mb)

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This article is licensed under a Creative Commons Attribution 4.0 International License.

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