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Volume 10
Issue 21
10.3390/electronics10212694
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Article

Underground Imaging by Sub-Terahertz Radiation

by
Yuan Zheng
1,
Calvin Domier
1,
Michelle Gonzalez
1,
Neville C. Luhmann, Jr.
1 and
Diana Gamzina
2,*
1
Department of Electrical and Computer Engineering, University of California, Davis, CA 95616, USA
2
The Technology Innovation Directorate, SLAC National Acceleration Laboratory, Menlo Park, CA 94025, USA
*
Author to whom correspondence should be addressed.
Electronics 2021, 10(21), 2694; https://doi.org/10.3390/electronics10212694
Submission received: 22 September 2021 / Revised: 26 October 2021 / Accepted: 2 November 2021 / Published: 4 November 2021
(This article belongs to the Special Issue Analysis and Test of Microwave Circuits and Subsystems)
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Abstract

Sub-terahertz ground-penetrating radar systems offer an alternative to radio wave-based systems in the airborne imaging of buried objects. Laboratory prototype systems operating in W-band (75–110 GHz) and F-band (90–140 GHz) are presented, detecting the distance between target and source and imaging metal objects buried in mixed soil. The experimental results show that imaging in the 100–150 GHz frequency range is feasible for underground applications but significantly restricted by the attenuation characteristics of the medium covering the targets. A higher power source and more sensitive receiving components are essential to increase the penetration capability and expand the application settings of this approach.
Keywords: GPR; landmine detection; millimeter wave imaging GPR; landmine detection; millimeter wave imaging

Share and Cite

MDPI and ACS Style

Zheng, Y.; Domier, C.; Gonzalez, M.; Luhmann, N.C., Jr.; Gamzina, D. Underground Imaging by Sub-Terahertz Radiation. Electronics 2021, 10, 2694. https://doi.org/10.3390/electronics10212694

AMA Style

Zheng Y, Domier C, Gonzalez M, Luhmann NC Jr., Gamzina D. Underground Imaging by Sub-Terahertz Radiation. Electronics. 2021; 10(21):2694. https://doi.org/10.3390/electronics10212694

Chicago/Turabian Style

Zheng, Yuan, Calvin Domier, Michelle Gonzalez, Neville C. Luhmann, Jr., and Diana Gamzina. 2021. "Underground Imaging by Sub-Terahertz Radiation" Electronics 10, no. 21: 2694. https://doi.org/10.3390/electronics10212694

APA Style

Zheng, Y., Domier, C., Gonzalez, M., Luhmann, N. C., Jr., & Gamzina, D. (2021). Underground Imaging by Sub-Terahertz Radiation. Electronics, 10(21), 2694. https://doi.org/10.3390/electronics10212694

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