Microwave nondestructive evaluation of aircraft radomes

Johnson, D. B.

doi:10.31274/rtd-180813-6636

Cited by 1 publication

(2 citation statements)

References 37 publications

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“…At microwave frequencies, the transmission and reflection characteristics of R&S structures are influenced by a thin layer of water on their surface. The presence of water may further cause damage to the composite structure due to expansion and contraction of freezing and thawing water (Johnson 2008). The thin film of water may result in signal attenuation in radome structures (Anderson 1975, Dietrich et al 1988.…”

Section: Defect Classification and Causesmentioning

confidence: 99%

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Performance and non-destructive evaluation methods of airborne radome and stealth structures

Panwar

Lee

2018

Meas. Sci. Technol.

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In the past few years, great effort has been devoted to the fabrication of highly efficient, broadband radome and stealth (R&S) structures for distinct control, guidance, surveillance and communication applications for airborne platforms. The evaluation of non-planar aircraft R&S structures in terms of their electromagnetic performance and structural damage is still a very challenging task. In this article, distinct measurement techniques are discussed for the electromagnetic performance and non-destructive evaluation (NDE) of R&S structures. This paper deals with an overview of the transmission line method and free space measurement based microwave measurement techniques for the electromagnetic performance evaluation of R&S structures. In addition, various conventional as well as advanced methods, such as millimetre and terahertz wave based imaging techniques with great potential for NDE of load bearing R&S structures, are also discussed in detail. A glimpse of in situ NDE techniques with corresponding experimental setup for R&S structures is also presented. The basic concepts, measurement ranges and their instrumentation, measurement method of different R&S structures and some miscellaneous topics are discussed in detail. Some of the challenges and issues pertaining to the measurement of curved R&S structures are also presented. This study also lists various mathematical models and analytical techniques for the electromagnetic performance evaluation and NDE of R&S structures. The research directions described in this study may be of interest to the scientific community in the aerospace sectors.

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Section: Defect Classification and Causesmentioning

confidence: 99%

“…There is no field ready method available to evaluate the electrical consistency of the composite structures. However, a coplanar stripline resonator (CSR) based advanced NDE technique can be employed to solve the issue (Johnson 2008). A CSR consists of two parallel metal strips impacted over a printed circuit board.…”

Section: Coplanar Strip-line Resonatormentioning

confidence: 99%

Performance and non-destructive evaluation methods of airborne radome and stealth structures

Panwar

Lee

2018

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Microwave nondestructive evaluation of aircraft radomes

Cited by 1 publication

References 37 publications

Performance and non-destructive evaluation methods of airborne radome and stealth structures

Performance and non-destructive evaluation methods of airborne radome and stealth structures

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