Microwave absorption of film explained accurately by wave cancellation theory

Liu, Y. ORCID: https://orcid.org/0000-0001-9862-5786, Yin, X., Drew, M. G.B. ORCID: https://orcid.org/0000-0001-8687-3440 and Liu, Y. (2023) Microwave absorption of film explained accurately by wave cancellation theory. Physica B: Condensed Matter, 666. 415108. ISSN 1873-2135 doi: 10.1016/j.physb.2023.415108

Abstract/Summary

It has been proved previously that in the field of microwave absorption, film and material are confused, and that the impedance matching theory (IM) which is usually applied to metal-backed film is inadequate. By analysis of experimental data from a novel theoretical perspective, it is shown here that the problems with IM cannot be solved even if different criteria such as the value of |Zin - Z0| or the phase difference between Zin (input impedance of film) and Z0 (characteristic impedance of open space or a layered material) are used and therefore the current theories related to IM need to be replaced by wave cancellation theory. The analysis in this work applies to published data and supports the new theories against the current ones. The conditions for the minima of reflection loss |RL| at large values of |Zin - Z0| have also been determined by transmission-line theory.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/121842
Item Type	Article
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Publisher	Elsevier
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