Surface-wave propagation on a grounded dielectric slab covered by a high-permittivity material
Article
Article Title | Surface-wave propagation on a grounded dielectric slab covered by a high-permittivity material |
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Article Category | Article |
Authors | Ball, James A. R. (Author) and Horsfield, Brendan (Author) |
Journal Title | IEEE Microwave and Guided Wave Letters |
Journal Citation | 10 (5), pp. 171-173 |
Number of Pages | 3 |
Year | 2000 |
Place of Publication | Piscataway, NJ. United States |
Digital Object Identifier (DOI) | https://doi.org/10.1109/75.850367 |
Web Address (URL) | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=850367 |
Abstract | A grounded dielectric slab covered by a higher permittivity material would not normally be expected to support surface waves. This conclusion must be modified when the covering material is sufficiently lossy. Assuming a thin slab, approximate analysis shows that the fundamental TM0 surface wave is able to propagate if the cover loss is high enough. A numerical analysis has verified these conclusions. propagation of higher order TM and TE modes is found to be possible above cutoff frequencies, which reduce as cover loss is increased. These results are of significance when printed circuit transmission lines such as microstrip or slotline are used as contact sensors, e.g., for moist materials. |
Keywords | dielectric losses; dielectric measurements; electromagnetic surface waves; microstrip; microwave propagation; moisture measurments; moisture transducers; slotline |
ANZSRC Field of Research 2020 | 490302. Numerical analysis |
400999. Electronics, sensors and digital hardware not elsewhere classified | |
400801. Circuits and systems | |
Public Notes | © 2000 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Byline Affiliations | Department of Electrical, Electronic and Computer Engineering |
Faculty of Engineering and Surveying | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0622/surface-wave-propagation-on-a-grounded-dielectric-slab-covered-by-a-high-permittivity-material
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