Electromagnetic properties of nanostructured materials


Funder: University of York Research Priming Fund
Date: August 2013 - July 2015
Web pages: York Research Database
My roles: Researcher

The inclusion of nano-scale structures within materials has the potential to provide enhanced or customised electromagnetic properties. Applications of these materials include shielding of sensitive systems from electromagnetic radiation; selective transmission of particular radio frequencies and the absorption of electromagnetic radiation. This project enhanced the capability of the research group in the production and characterisation of such materials, in particular the measurement of their electromagnetic properties at gigahertz frequencies.

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Electromagnetic analysis of reflection and transmission from a materials sample

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New miniature coaxial transmission line test cell for material characterisation

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SEM image of a conductive graphene foam showing an open matrix of graphene flakes

The project, which was an internal collaboration between the AEG and Nanodevices research areas of the Department of Electronics funded by the University of York Research Priming Fund, consisted of three main tasks:

  1. Design and fabrication of a high-frequency coaxial test cell for shielding effectiveness and material parameter measurements. Calibration samples consisting of perforated metal plates and thin metal films were also fabricated.
  2. Development of robust material parameter extraction methods to obtain the complex material parameters from the measured reflection and transmission coefficients in the presence of noise and systematic errors.
  3. Fabrication of some preliminary test samples containing nano particles to demonstrate the use of the new test cell.

The details are available in the (Flintoft et al., 2015).


  1. Flintoft, I.D., Dawson, J.F., Will, I.G. and Dawson, L., 2015. Electromagnetic properties of nanostructured materials. [Technical Report] York, UK: University of York.