Surface wave reflection from a metasurface termination
| Autor: | J. R. Sambles, S J Berry, Alastair P. Hibbins |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Surface (mathematics)
Field (physics) Science 02 engineering and technology 01 natural sciences Article Techniques and instrumentation Momentum Optics 0103 physical sciences Reflection coefficient Ground plane 010302 applied physics Physics Multidisciplinary business.industry 021001 nanoscience & nanotechnology Applied physics Surface wave Reflection (physics) Medicine 0210 nano-technology business Microwave |
| Zdroj: | Scientific Reports, Vol 11, Iss 1, Pp 1-6 (2021) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | The reflection coefficient of a microwave surface wave incident at the termination of a metasurface is explored. Two different surface types are examined. One is a square array of square metallic patches on a dielectric-coated metallic ground plane, the other a Sievenpiper ‘mushroom’ array. In the latter the surface wave fields are more confined within the structure. Comparison of the measured surface-wave reflection spectra is made with that obtained from analytic theory and numerical modelling. The reflection coefficient is shown to be dependent on both the momentum mismatch between the surface wave and the freely propagating modes as well as the different field distributions of the two modes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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