Study on improvement of the performance parameters of a novel 0.41–0.47 THz on‑chip antenna based on metasurface concept realized on 50 μm GaAs‑layer

Alibakhshikenari, Mohammad, Virdee, Bal Singh, See, Chan, Shukla, Pancham, Salekzamankhani, Shahram, Abd-Alhameed, Raed, Falcone, Francisco and Limiti, Ernesto (2020) Study on improvement of the performance parameters of a novel 0.41–0.47 THz on‑chip antenna based on metasurface concept realized on 50 μm GaAs‑layer. Scientific Reports, 10 (11034). pp. 1-9. ISSN 2045-2322

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Official URL: https://www.nature.com/articles/s41598-020-68105-z

Abstract / Description

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 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.

Item Type: Article
Uncontrolled Keywords: on-chip antenna, metamaterial, terahertz (THz), substrate integrated waveguide (SIW), transceiver, Gallium Arsenide (GaAs) substrate
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Depositing User: Bal Virdee
Date Deposited: 06 Jul 2020 09:18
Last Modified: 06 Jul 2020 09:18
URI: http://repository.londonmet.ac.uk/id/eprint/5841

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