A Compact Time-Domain Reflectometry (TDR)-Based Microwave Nondestructive Testing Circuit.
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| Title: | A Compact Time-Domain Reflectometry (TDR)-Based Microwave Nondestructive Testing Circuit. |
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| Authors: | Shaaban, Nadine A.1, Jawad, Ghassan N.1 ghassan.jawad@coeng.uobaghdad.edu.iq |
| Source: | Progress in Electromagnetics Research C. 2026, Vol. 164, p263-270. 8p. |
| Subjects: | Time-domain reflectometry, Nondestructive testing, Polystyrene, Reflectometer, Broadband antennas |
| Abstract: | This paper proposes a proof-of-concept circuit of a time-domain reflectometry (TDR)-based nondestructive testing (NDT) circuit. The circuit consists of a broadband six-port reflectometer with an end-fire antenna probe. The broadband operation is achieved by a reduced-size six-port reflectometer that uses a special algorithm to extend the frequency of operation beyond the limits between which a normal reflectometer is usually used. In addition, a highly-directive antenna probe is proposed to provide a near-constant gain across the bandwidth of operation. By operating the circuit within the frequency range 2.5–7 GHz, it is used to detect gaps of various widths between the back of a polystyrene sample and a metallic plate. Results show a clear indication of the gaps’ existence in addition to a shift that is associated with the gap width. The proposed circuit proves the possibility of implementing the TDR-based microwave NDT system using a low-cost and compact circuit without the need for bulky and expensive vector network analyzers. This paves the road towards utilizing this technology in real-life scenarios. [ABSTRACT FROM AUTHOR] |
| Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 191361174 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Compact Time-Domain Reflectometry (TDR)-Based Microwave Nondestructive Testing Circuit. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Shaaban%2C+Nadine+A%2E%22">Shaaban, Nadine A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jawad%2C+Ghassan+N%2E%22">Jawad, Ghassan N.</searchLink><relatesTo>1</relatesTo><i> ghassan.jawad@coeng.uobaghdad.edu.iq</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 164, p263-270. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Time-domain+reflectometry%22">Time-domain reflectometry</searchLink><br /><searchLink fieldCode="DE" term="%22Nondestructive+testing%22">Nondestructive testing</searchLink><br /><searchLink fieldCode="DE" term="%22Polystyrene%22">Polystyrene</searchLink><br /><searchLink fieldCode="DE" term="%22Reflectometer%22">Reflectometer</searchLink><br /><searchLink fieldCode="DE" term="%22Broadband+antennas%22">Broadband antennas</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper proposes a proof-of-concept circuit of a time-domain reflectometry (TDR)-based nondestructive testing (NDT) circuit. The circuit consists of a broadband six-port reflectometer with an end-fire antenna probe. The broadband operation is achieved by a reduced-size six-port reflectometer that uses a special algorithm to extend the frequency of operation beyond the limits between which a normal reflectometer is usually used. In addition, a highly-directive antenna probe is proposed to provide a near-constant gain across the bandwidth of operation. By operating the circuit within the frequency range 2.5–7 GHz, it is used to detect gaps of various widths between the back of a polystyrene sample and a metallic plate. Results show a clear indication of the gaps’ existence in addition to a shift that is associated with the gap width. The proposed circuit proves the possibility of implementing the TDR-based microwave NDT system using a low-cost and compact circuit without the need for bulky and expensive vector network analyzers. This paves the road towards utilizing this technology in real-life scenarios. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.2528/PIERC25071008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 263 Subjects: – SubjectFull: Time-domain reflectometry Type: general – SubjectFull: Nondestructive testing Type: general – SubjectFull: Polystyrene Type: general – SubjectFull: Reflectometer Type: general – SubjectFull: Broadband antennas Type: general Titles: – TitleFull: A Compact Time-Domain Reflectometry (TDR)-Based Microwave Nondestructive Testing Circuit. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Shaaban, Nadine A. – PersonEntity: Name: NameFull: Jawad, Ghassan N. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19378718 Numbering: – Type: volume Value: 164 Titles: – TitleFull: Progress in Electromagnetics Research C Type: main |
| ResultId | 1 |
