High Performance Metasurface-Based On-Chip Antenna for Terahertz Integrated Circuits
Main Authors: | Mohammad Alibakhshikenari, Naser Ojaroudi Parchin, Bal Singh Virdee, Chan Hwang See, Raed A. Abd-Alhameed, Francisco Falcone, Ernesto Limiti |
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Format: | Proceeding Journal |
Terbitan: |
, 2020
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Online Access: |
https://zenodo.org/record/4425907 |
Daftar Isi:
- 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.