Applications of RF/Microwave/Millimeter-Wave/THz Imaging

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 2418

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Guest Editor
Department of Electrical and Computer Engineering, New York Institute of Technology, New York, NY 10023, USA
Interests: applied electromagnetics; antennas; microwave
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Special Issue Information

Dear Colleagues,

Sensing and imaging with electromagnetic waves have grown rapidly in the past few decades thanks to the significant progress in hardware components and processing algorithms. On the hardware side, the emergence of new and cost-effective sensors and their associated data acquisition boards has paved the way toward numerous novel applications. On the processing side, the development of faster computing machines has allowed for realization of more sophisticated algorithms that facilitate real-time or quasi real-time imaging and sensing of the media. The range of applications is very broad and encompasses frequencies from fractions of Hertz to tera-Hertz and beyond, including but not limited to eddy current inspections, inductive sensing of conductive objects, capacitive sensing of dielectric objects, microwave imaging for biomedical and nondestructive testing applications, microwave sensing for material identification, radar imaging and remote sensing, tera-Hertz imaging and sensing, and optical imaging and sensing. The objective of this Special Issue is to provide an overview of the current research on methods and applications of electromagnetic waves in the imaging and sensing of media, highlighting the latest developments and innovations in modern applications in terms of sensors, data acquisition circuits, sampling methods, algorithms, and so on. We will also try to identify new challenges and opportunities for new applications.

Dr. Reza K. Amineh
Guest Editor

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Keywords

  • eddy current imaging
  • inductive imaging
  • capacitive imaging
  • microwave imaging
  • MM-wave imaging
  • radar imaging
  • remote sensing
  • THz imaging
  • optical imaging

Published Papers (1 paper)

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Research

16 pages, 6093 KiB  
Article
Near-Field Imaging of Dielectric Components Using an Array of Microwave Sensors
by Yuki Gao, Maryam Ravan and Reza K. Amineh
Electronics 2023, 12(6), 1507; https://doi.org/10.3390/electronics12061507 - 22 Mar 2023
Cited by 2 | Viewed by 1746
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Applications of RF/Microwave/Millimeter-Wave/THz Imaging)
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