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http://dx.doi.org/10.5573/ieie.2016.53.7.138

Development of Passive Millimeter-wave Security Screening System  

Yoon, Jin-Seob (Department of Computer Application, Seoil University)
Jung, Kyung Kwon (Korea Electronics Technology Institute)
Chae, Yeon-Sik (Department of Computer Application, Seoil University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.53, no.7, 2016 , pp. 138-143 More about this Journal
Abstract
The designed and fabricated millimeter-wave security screening system receives radiation energy from an object and a human body. The imaging system consist of sixteen array antennas, sixteen four-stage LNAs, sixteen detectors, an infrared camera, a CCD camera, reflector, and a focusing lens. This system requires high sensitivity and wide bandwidth to detect the input thermal noise. The LNA module of the system has been measured to have 65.8 dB in average linear gain and 82 GHz~102 GHz in bandwidth to enhance the sensitivity for thermal noise, and to receive it over a wide bandwidth. The detector is used for direct current (DC) output translation of millimeter-wave signals with a zero bias Schottky diode. The lens and front-end of the millimeter-wave sensor are important in the system to detect the input thermal noise signal. The frequency range in the receiving sensitivity of the detectors was 350 to 400 mV/mW at 0 dBm (1 mW) input power. The developed W-band imaging system is effective for detecting and identifying concealed objects such as metal or plastic.
Keywords
passive millimeter-wave imaging; concealed object; scanning reflector; millimeter-wave lens;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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6 http://www.brijot.com/