Toward the Realization of a Programmable Metasurface Absorber Enabled by Custom Integrated Circuit Technology

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020-01-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
13
92986-92998
Series
IEEE Access, Volume 8
Abstract
The realization of a programmable metasurface, enabled by a custom application-specific integrated circuit (ASIC), is presented in this paper. The ASIC is used to provide an adaptive complex impedance load to each of the metasurface unit cells. Various technology nodes are analyzed for the implementation of tunable complex impedance loading elements before one is selected for the final implementation, in which four complex loads are placed within each integrated circuit, and each load is controlled by two digital-to-analog converters. Furthermore, the ASICs populate the back of the metasurface to form a mesh network to enable programmability. The paper includes practical limitations that affect the realization, as well as an example adaptive metasurface absorber that builds upon the practical tuning range of the ASIC. Perfect absorption for both transverse electric and transverse magnetic polarization is demonstrated.
Description
| openaire: EC/H2020/736876/EU//VISORSURF
Keywords
ASIC, Metasurfaces, perfect absorption, programmable RF load, reconfigurable
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Citation
Kossifos, K M, Petrou, L, Varnava, G, Pitilakis, A, Tsilipakos, O, Liu, F, Karousios, P, Tasolamprou, A C, Seckel, M, Manessis, D, Kantartzis, N V, Kwon, D H, Antoniades, M A & Georgiou, J 2020, ' Toward the Realization of a Programmable Metasurface Absorber Enabled by Custom Integrated Circuit Technology ', IEEE Access, vol. 8, 9092996, pp. 92986-92998 . https://doi.org/10.1109/ACCESS.2020.2994469