Abstract:
: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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Alibakhshikenari M,Virdee BS,See CH,Shukla P,Salekzamankhani S,Abd-Alhameed RA,Falcone F,Limiti Edoi
10.1038/s41598-020-68105-zsubject
Has Abstractpub_date
2020-07-03 00:00:00pages
11034issue
1issn
2045-2322pii
10.1038/s41598-020-68105-zjournal_volume
10pub_type
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