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Thin-film sensing using circular open ring resonators at mm-wave frequencies This publication appears in: Applied Physics A: Materials Science & Processing Authors: A. Elhawil, J. Stiens, C. De Tandt, W. Ranson and R. Vounckx Volume: 103 Pages: 623-626 Publication Date: Jan. 2011
Abstract: In this paper, we investigate a thin-film sensing approach using split-ring resonators. The sensitivity based on tuned magnetic resonance has been demonstrated using three methods: by depositing the film in the gap, under the rings as an intermediate layer and on the rings as an overlayer. The numerical simulations and experimental results are presented. In addition, the advantages and the limitations of each approach are discussed. Moreover, the sensitivity of the circular rings are compared with that of the square rings.
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