Meta-lens antenna with enhanced gain at 24.125 GHz

David A. House; Mohamed A. Salem

doi:10.1117/12.2568944

17 August 2020 Meta-lens antenna with enhanced gain at 24.125 GHz

David A. House, Mohamed A. Salem

Proceedings Volume 11460, Metamaterials, Metadevices, and Metasystems 2020; 114602W (2020) https://doi.org/10.1117/12.2568944
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Conference Poster

Abstract

A multifocal metasurface lens is designed for a K-band patch antenna array consisting of 4 × 4 elements. The lens is constructed using a two-layer “dogbone” meta-particle structure and is placed 0.5 mm away from the array. The choice of this particular design emphasizes simplicity and cost-effectiveness, without much sacrifice in performance. Full-wave simulations are performed to catalog the scattering behavior of the dogbone metaparticle along with its geometric parameters. Two methods of fabrication were investigated to fabricate the design, namely, mechanical etching and chemical etching. Experimental results show that chemical etching produced a meta-lens with higher gain compared to mechanical etching. However, the gain enhancement in both lenses is observed at a higher frequency than originally intended in the design.

Citation Download Citation

David A. House and Mohamed A. Salem "Meta-lens antenna with enhanced gain at 24.125 GHz", Proc. SPIE 11460, Metamaterials, Metadevices, and Metasystems 2020, 114602W (17 August 2020); https://doi.org/10.1117/12.2568944

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