eprintid: 709 rev_number: 8 eprint_status: archive userid: 4 dir: disk0/00/00/07/09 datestamp: 2016-03-14 16:15:22 lastmod: 2016-03-14 16:15:22 status_changed: 2016-03-14 16:15:22 type: thesis metadata_visibility: show creators_name: Dolci, F. title: Pixel-based Metamaterial Design ispublished: pub subjects: MEA full_text_status: public keywords: Evolutionary Optimization, Metamaterial, System-by-Design. abstract: In metamaterial design based on Transformation Optics, the output is an analytical representation of spatial variation of material properties (permittivity and permeability). The straightforward approach toward physical realization of such materials is to make a stair case approximation of the analytical results. This poses a practical challenge because there are only limited number of materials available each having a fixed set of properties. In the view of practical realization the objective of this activity is to use material by design methodology to make pixel level specification by selecting an actual material form a library of available materials. This introduces tradeoff between practical realizability and the performance of the overall material. The project involves integrating (an existing) Transformation Optics based metamaterial design tool with a system by design loop. The design approach will be tested for applications of linear array miniaturization using metamaterial lenses, and array performance enhancement using conformal metamaterial lenses. date: 2015-06-26 date_type: completed institution: University of Trento department: ELEDIA Research Center @ DISI thesis_type: masters refereed: FALSE referencetext: [1] P. Rocca, M. Benedetti, M. Donelli, D. Franceschini, and A. Massa, "Evolutionary optimization as applied to inverse problems," Inverse Problems - 25 th Year Special Issue of Inverse Problems, Invited Topical Review, vol. 25, pp. 1-41, Dec. 2009. [2] P. Rocca, G. Oliveri, and A. Massa, "Differential Evolution as applied to electromagnetics," IEEE Antennas Propag. Mag., vol. 53, no. 1, pp. 38-49, Feb. 2011. [3] G. Oliveri, E. T. Bekele, M. Salucci, and A. Massa, “Array miniaturization through QCTO-SI metamaterial radomes,” IEEE Trans. Antennas Propag., vol. 63, no. 8, pp. 3465-3476, Aug. 2015. [4] G. Oliveri, L. Tenuti, E. Bekele, M. Carlin, and A. Massa, “An SbD-QCTO approach to the synthesis of isotropic metamaterial lenses,” IEEE Antennas Wireless Propag. Lett., vol. 13, pp. 1783-1786, 2014. [5] G. Oliveri, D. H. Werner, and A. Massa, “Reconfigurable electromagnetics through metamaterials - A review,” Proc. IEEE, vol. 103, no. 7, pp. 1034-1056, Jul. 2015. [6] G. Oliveri, E. T. Bekele, D. H. Werner, J. P. Turpin, and A. Massa, “Generalized QCTO for metamaterial-lens-coated conformal arrays”, IEEE Trans. Antennas Propag., vol. 62, no. 8, pp 4089-4095, Aug. 2014. [7] G. Oliveri, P. Rocca, M. Salucci, E. T. Bekele, D. H. Werner, and A. Massa, "Design and synthesis of innovative metamaterial-enhanced arrays," IEEE International Symposium on Antennas Propag. (APS/URSI 2013), Orlando, Florida, USA, pp. 972 - 973, Jul. 7-12, 2013. [8] I. Martinez, A. H. Panaretos, D. H. Werner, G. Oliveri, and A. Massa, "Ultra-thin reconfigurable electromagnetic metasurface absorbers," EuCAP 2013, Gothenburg, Sweden, Apr. 8-12, 2013. [9] G. Oliveri, "Improving the reliability of frequency domain simulators in the presence of homogeneous metamaterials - A preliminary numerical assessment," Progress In Electromagnetics Research, vol. 122, pp. 497-518, 2012. [10] G. Oliveri, F. Viani, N. Anselmi, and A. Massa, "Synthesis of multi-layer WAIM coatings for planar phased arrays within the system-by-design framework,” IEEE Trans. Antennas Propag., vol. 63, no. 6, pp. 2482-2496, June 2015. [11] A. Massa, G. Oliveri, P. Rocca, and F. Viani, "System-by-Design: a new paradigm for handling design complexity," 8th European Conference on Antennas Propag. (EuCAP 2014), The Hague, The Netherlands, pp. 1180-1183, Apr. 6-11, 2014. citation: Dolci, F. (2015) Pixel-based Metamaterial Design. Masters thesis, University of Trento. document_url: http://www.eledia.org/students-reports/709/1/Abstract.A633.pdf