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(2014). Extraction of Electromagnetic Parameters of Metamaterials Based on the State-Space Approach. Electronic and Cyber Defense, 2(2), 1-9.
. "Extraction of Electromagnetic Parameters of Metamaterials Based on the State-Space Approach". Electronic and Cyber Defense, 2, 2, 2014, 1-9.
(2014). 'Extraction of Electromagnetic Parameters of Metamaterials Based on the State-Space Approach', Electronic and Cyber Defense, 2(2), pp. 1-9.
Extraction of Electromagnetic Parameters of Metamaterials Based on the State-Space Approach. Electronic and Cyber Defense, 2014; 2(2): 1-9.

Extraction of Electromagnetic Parameters of Metamaterials Based on the State-Space Approach

الکترومغناطیس کاربردی
Article 1, Volume 2, Issue 2, July 2014, Pages 1-9    PDF (4.97 M)
Document Type: Original Article
Receive Date: 17 October 2015,  Revise Date: 06 March 2019,  Accept Date: 19 September 2018 
Abstract
This  paper deals  with  the introduction  of  an  approach  for the  electromagnetic  characterization  of  metamaterials
based  on  the  state  space  approach.  The  state  space  approach  is  commonly  used  to  deal  with  the  problems  of  plane
wave scattering from planar layered media, but its application in inverse problems has remained an almost untouched
topic  in  the  literature.  The  proposed  method  is  based  on  the  state  transition  matrix  and  its  properties  which  allows
avoiding  nonlinearity  and  complexity  of  the  problem.  The  main  difference  with  respect  to  other  well-established  re-
trieval procedures based on the use of the scattering parameters relies on the direct computation of the transfer ma-
trix of the  slab as  opposed to the  conventional calculation of  the propagation  constant  and impedance of the  modes
supported  by  the  medium.  To validate  the proposed  method, constitutive parameters  of a  metamaterial  structure are
retrieved at microwave frequencies. The results show that the proposed method is robust and reliable. 
Keywords
Parameter Retrieval; Complex Media; Metamaterials; State-Space Approach; State Transition Matrix
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