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

Kypros M. Kossifos*, Loukas Petrou, Giorgos Varnava, Alexandros Pitilakis, Odysseas Tsilipakos, Fu Liu, Petros Karousios, Anna C. Tasolamprou, Manuel Seckel, Dionysios Manessis, Nikolaos V. Kantartzis, Do Hoon Kwon, Marco A. Antoniades, Julius Georgiou

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
63 Downloads (Pure)

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.

Original languageEnglish
Article number9092996
Pages (from-to)92986-92998
Number of pages13
JournalIEEE Access
Volume8
DOIs
Publication statusPublished - 1 Jan 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • ASIC
  • Metasurfaces
  • perfect absorption
  • programmable RF load
  • reconfigurable

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