Crack Detection in Metallic Surfaces Based on Dumbbell-Shaped Defected Ground Structures in Microstrip Technology
Abstract
In this paper, a novel crack detection sensor using a microstrip loaded with a Dumbbell-Shaped Defected Ground Structure (DS-DGS) is proposed. The sensing element is etched in the ground plane of a microstrip line and it is easy to fabricate. The electromagnetic (EM) field of the microstrip couples to the DS-DGS, thus demonstrating a bandstop behavior. It is shown that in the presence of a crack in a metallic surface underneath the sensor, the resonance frequency of the DS-DGS is shifted. This frequency shift can be used for crack sensing in metallic surfaces. The proposed sensor exhibits a good sensitivity above 260 MHz shift for a crack with a 200 µm width at the relatively low operating frequency of around 2 GHz.
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- Accepted or Published Version
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- Copyright (2022 Warsaw University of Technology)
Keywords
Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- 2022 24th International Microwave and Radar Conference (MIKON) strony 1 - 4
- Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Shaterian Z., Mrozowski M.: Crack Detection in Metallic Surfaces Based on Dumbbell-Shaped Defected Ground Structures in Microstrip Technology// 2022 24th International Microwave and Radar Conference (MIKON)/ : , 2022, s.1-4
- DOI:
- Digital Object Identifier (open in new tab) 10.23919/mikon54314.2022.9924958
- Sources of funding:
-
- Statutory activity/subsidy
- Verified by:
- Gdańsk University of Technology
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