A Novel Metamaterial Enhanced Microwave Testing System for Bare PCB Substrates Using Image Rendering Approach

Samsingh, Vimal R.; Kanagasabai, Malathi; Sundarsingh, Esther Florence

doi:10.1109/tcpmt.2016.2633974

Cited by 2 publications

(1 citation statement)

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“…To address this problem, an electromagnetic band gap (EBG) planar microwave microstrip sensor has been proposed in [4] to detect delamination in fiber-reinforced epoxy-based PCB laminates. Similarly, an automatic crack detection technique for the quality check of FR4 has been proposed in [5] where a microwave planar sensing probe has been designed. Furthermore, in [1], the capability of near-field microwave NDT methods for detecting and evaluating corrosion under paint has been shown.…”

Section: Introductionmentioning

confidence: 99%

Near-Field Imaging of Dielectric Components Using an Array of Microwave Sensors

2023

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Microwave imaging is a high-resolution, noninvasive, and noncontact method for detecting hidden defects, cracks, and objects with applications for testing nonmetallic components such as printed circuit boards, biomedical diagnosis, aerospace components inspection, etc. In this paper, an array of microwave sensors designed based on complementary split ring resonators (CSRR) are used to evaluate the hidden features in dielectric media with applications in nondestructive testing and biomedical diagnosis. In this array, each element resonates at a different frequency in the range of 1 GHz to 10 GHz. Even though the operating frequencies are not that high, the acquisition of evanescent waves in extreme proximity to the imaged object and processing them using near-field holographic imaging allows for obtaining high-resolution images. The performance of the proposed method is demonstrated through simulation and experimental results.

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Section: Introductionmentioning

confidence: 99%