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Review Article


A review of sub-terahertz power amplifier applications in short-range imaging

Aliyu D. Usman, Abdulmalik S. Yaro, Habeeb Bello, Athanisius Terlumun Utev, Umar Abubakar, Ajayi Ore-ofe.


Abstract
Sub-terahertz (sub-THz) imaging is an emerging field of research with promising applications in short-range imaging, including security screening and biomedical diagnostics. Amplifiers are critical components of sub-THz imaging systems because they play key roles in signal amplification and noise reduction. This review paper provides an overview of sub-THz power amplifiers (PAs). The study also examines recent advances in sub-THz PA technology, including distributed amplifiers, broadband amplifiers, and low-noise amplifiers (LNAs). The paper then discusses the current state of sub-THz imaging and sensing techniques for security and biomedical applications, including millimeter-wave body scanners, sub-THz spectroscopy, and sub-THz microscopy. Finally, the paper discusses the challenges and future prospects for sub-THz imaging, including the need for improved amplifier performance and integration with other imaging modalities. Overall, this review provides a comprehensive overview of sub-THz amplifier technology and its applications in short-range imaging, highlighting the potential for sub-THz imaging to transform security and biomedical imaging fields.

Key words: Amplifiers; Sub-terahertz amplifier; Power amplifier.


 
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How to Cite this Article
Pubmed Style

Usman AD, Yaro AS, Bello H, Utev AT, Abubakar U, Ore-ofe A. A review of sub-terahertz power amplifier applications in short-range imaging. J Eng Res Rev. 2025; 2(3): 213-227. doi:10.5455/JERR.2025.v2.i3.2

Web Style

Usman AD, Yaro AS, Bello H, Utev AT, Abubakar U, Ore-ofe A. A review of sub-terahertz power amplifier applications in short-range imaging. https://www.jerronline.org/?mno=233637 [Access: September 25, 2025]. doi:10.5455/JERR.2025.v2.i3.2

AMA (American Medical Association) Style

Usman AD, Yaro AS, Bello H, Utev AT, Abubakar U, Ore-ofe A. A review of sub-terahertz power amplifier applications in short-range imaging. J Eng Res Rev. 2025; 2(3): 213-227. doi:10.5455/JERR.2025.v2.i3.2


Vancouver/ICMJE Style

Usman AD, Yaro AS, Bello H, Utev AT, Abubakar U, Ore-ofe A. A review of sub-terahertz power amplifier applications in short-range imaging. J Eng Res Rev. (2025), [cited September 25, 2025]; 2(3): 213-227. doi:10.5455/JERR.2025.v2.i3.2


Harvard Style

Usman, A. D., Yaro, . A. S., Bello, . H., Utev, . A. T., Abubakar, . U. & Ore-ofe, . A. (2025) A review of sub-terahertz power amplifier applications in short-range imaging. J Eng Res Rev, 2 (3), 213-227. doi:10.5455/JERR.2025.v2.i3.2


Turabian Style

Usman, Aliyu D., Abdulmalik S. Yaro, Habeeb Bello, Athanisius Terlumun Utev, Umar Abubakar, and Ajayi Ore-ofe. 2025. A review of sub-terahertz power amplifier applications in short-range imaging. Journal of Engineering Research and Reviews, 2 (3), 213-227. doi:10.5455/JERR.2025.v2.i3.2


Chicago Style

Usman, Aliyu D., Abdulmalik S. Yaro, Habeeb Bello, Athanisius Terlumun Utev, Umar Abubakar, and Ajayi Ore-ofe. "A review of sub-terahertz power amplifier applications in short-range imaging." Journal of Engineering Research and Reviews 2 (2025), 213-227. doi:10.5455/JERR.2025.v2.i3.2


MLA (The Modern Language Association) Style

Usman, Aliyu D., Abdulmalik S. Yaro, Habeeb Bello, Athanisius Terlumun Utev, Umar Abubakar, and Ajayi Ore-ofe. "A review of sub-terahertz power amplifier applications in short-range imaging." Journal of Engineering Research and Reviews 2.3 (2025), 213-227. Print. doi:10.5455/JERR.2025.v2.i3.2


APA (American Psychological Association) Style

Usman, A. D., Yaro, . A. S., Bello, . H., Utev, . A. T., Abubakar, . U. & Ore-ofe, . A. (2025) A review of sub-terahertz power amplifier applications in short-range imaging. Journal of Engineering Research and Reviews, 2 (3), 213-227. doi:10.5455/JERR.2025.v2.i3.2


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