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High Performance Metasurface-Based On-Chip Antenna for Terahertz Integrated Circuits

Alibakhshikenari, Mohammad; Virdee, Bal Singh; See, Chan Hwang; A. Abd-Alhameed, Raed; Falcone, Francisco; Limiti, Ernesto


Mohammad Alibakhshikenari

Bal Singh Virdee

Raed A. Abd-Alhameed

Francisco Falcone

Ernesto Limiti


This paper presents a simple prototype of a metasurface-based on-chip antenna operating in 0.3-0.32 THz. The proposed structure is constructed from two layers of polyimide-substrates with thickness of 0.1mm that sandwich a middle metallic ground-plane layer of 50-micron thickness. A series of linear slots of varying lengths are etched on the radiation patches of the top-layer to create a metasurface. This is shown to enhance the antenna's effective aperture area that improves its radiation performance without affecting the overall antenna's footprint. To reduce the surface-waves and substrate-losses a meander-line slits has realized inside the ground-plane. The antenna is fed by an open-ended microstrip feedline located on the bottom-layer. The feedline consists of three-branches that are aligned under each radiation patch to achieve the maximum electromagnetic (EM) transfer from bottom-side of the bottom layer to the topside of the top-layer. Coupling of the EM energy from the bottom-layer to the top-layer is via meander-line slits introduced between the two layers. Simulation results show improvement in the on-chip antenna's impedance bandwidth, gain and efficiency.

Presentation Conference Type Conference Paper (Published)
Conference Name 2020 Third International Workshop on Mobile Terahertz Systems (IWMTS)
Start Date Jul 1, 2020
End Date Jul 2, 2020
Acceptance Date May 13, 2020
Online Publication Date Aug 13, 2020
Publication Date Aug 13, 2020
Deposit Date May 16, 2020
Publisher Institute of Electrical and Electronics Engineers
Keywords antenna; antenna array
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