Alibakhshikenari, Mohammad, Virdee, Bal Singh, See, Chan, Abd-Alhameed, Raed, Falcone, Francisco and Limiti, Ernesto (2020) High-gain metasurface in polyimide on-chip antenna based on CRLH-TL for sub-terahertz integrated circuits. Scientific Reports, 10 (4298). pp. 1-9. ISSN 2045-2322
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Abstract / Description
This paper presents a novel on-chip antenna using standard CMOS-technology based on metasurface implemented on two-layers polyimide substrates with a thickness of 500μm. The aluminium ground-plane with thickness of 3μm is sandwiched between the two-layers. Concentric dielectric-rings are etched in the ground-plane under the radiation patches implemented on the top-layer. The radiation patches comprise concentric metal-rings that are arranged in a 3×3 matrix. The antennas are excited by coupling electromagnetic energy through the gaps of the concentric dielectric-rings in the ground-plane using a microstrip feedline created on the bottom polyimide-layer. The open-ended feedline is split in three-branches that are aligned under the radiation elements to couple the maximum energy. In this structure, the concentric metal-rings essentially act as CL that extend the effective aperture area without affecting its dimensions, and the concentric dielectric rings etched in the ground-plane act as LL, which suppress the surface-waves and reduce the substrates losses that leads to improved bandwidth and radiation properties. The overall structure behaves like a metasurface that is shown to exhibit a very large bandwidth of 0.350-0.385THz with an average radiation gain and efficiency of 8.15dBi and 65.71%, respectively. It has dimensions of 6mm×6mm×1mm that makes it suitable for on-chip implementation.
Item Type: | Article |
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Uncontrolled Keywords: | on-chip antenna; CMOS-technology; CRLH-TL; sub-terahertz integrated circuits |
Subjects: | 600 Technology > 620 Engineering & allied operations |
Department: | School of Computing and Digital Media |
Depositing User: | Bal Virdee |
Date Deposited: | 11 Mar 2020 09:09 |
Last Modified: | 12 Mar 2021 14:19 |
URI: | https://repository.londonmet.ac.uk/id/eprint/5597 |
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