Ultra-thin reconfigurable electromagnetic metasurface absorbers

Idellyse Martinez, Anastasios H. Panaretos, Douglas H. Werner, Giacomo Oliveri, Andrea Massa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

25 Scopus citations

Abstract

An ultra-thin reconfigurable absorber concept based on metasurfaces is presented. First, an artificial magnetic conducting (AMC) metasurface absorber is examined that incorporates lumped resistors along with variable lumped capacitors, which allow its frequency response to be tuned. The parasitic effects introduced by the lumped capacitors are compensated by adding resistors whose values are determined using an optimization algorithm known as the covariance matrix adaptation evolutionary strategy (CMA-ES). Second, the feasibility of achieving broadband absorption using frequency selective surfaces (FSSs) comprised of square loops is examined. Such a structure offers greater tunability, and thus wideband absorption can be achieved. First, an absorber that utilizes an FSS comprised by two square loops along with lumped resistors is studied and its wideband absorption properties are demonstrated. Second, an absorber that incorporates a resistive frequency selective surface comprised by four square loops and a center patch is presented.

Original languageEnglish (US)
Title of host publication2013 7th European Conference on Antennas and Propagation, EuCAP 2013
Pages1843-1847
Number of pages5
StatePublished - Aug 14 2013
Event2013 7th European Conference on Antennas and Propagation, EuCAP 2013 - Gothenburg, Sweden
Duration: Apr 8 2013Apr 12 2013

Publication series

Name2013 7th European Conference on Antennas and Propagation, EuCAP 2013

Other

Other2013 7th European Conference on Antennas and Propagation, EuCAP 2013
CountrySweden
CityGothenburg
Period4/8/134/12/13

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All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Martinez, I., Panaretos, A. H., Werner, D. H., Oliveri, G., & Massa, A. (2013). Ultra-thin reconfigurable electromagnetic metasurface absorbers. In 2013 7th European Conference on Antennas and Propagation, EuCAP 2013 (pp. 1843-1847). [6546607] (2013 7th European Conference on Antennas and Propagation, EuCAP 2013).